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Initial import
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<meta http-equiv="content-type" content="text/html;charset=utf-8">
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<title>__init__.py</title>
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<div class='docs'><h1>__init__.py</h1></div>
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<div class='code'>
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<div class="highlight"><pre><span class="kn">from</span> <span class="nn">kartograph</span> <span class="kn">import</span> <span class="n">Kartograph</span>
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<span class="kn">from</span> <span class="nn">kartograph</span> <span class="kn">import</span> <span class="n">verbose</span>
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<span class="kn">from</span> <span class="nn">map</span> <span class="kn">import</span> <span class="n">projections</span>
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<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">'Kartograph'</span><span class="p">,</span> <span class="s">'projections'</span><span class="p">,</span> <span class="s">'verbose'</span><span class="p">]</span>
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</pre></div>
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<meta http-equiv="content-type" content="text/html;charset=utf-8">
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<title>cartogram.py</title>
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<link rel="stylesheet" href="pycco.css">
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<div id="background"></div>
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<div class='docs'><h1>cartogram.py</h1></div>
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<p>computes a circle cartogram for a given svg map + data file</p>
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<div class='code'>
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<div class="highlight"><pre></pre></div>
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<div class="highlight"><pre></pre></div>
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<div class='code'>
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<div class="highlight"><pre><span class="k">class</span> <span class="nc">Cartogram</span><span class="p">:</span></pre></div>
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<div class='code'>
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<div class="highlight"><pre> <span class="k">def</span> <span class="nf">generate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">svg_src</span><span class="p">,</span> <span class="n">attr</span><span class="p">,</span> <span class="n">csv_src</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
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<span class="n">regions</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">load_regions_from_svg</span><span class="p">(</span><span class="n">svg_src</span><span class="p">,</span> <span class="n">attr</span><span class="p">)</span>
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<span class="n">data</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">load_csv</span><span class="p">(</span><span class="n">csv_src</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
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<span class="n">circles</span> <span class="o">=</span> <span class="p">[]</span>
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<span class="k">for</span> <span class="nb">id</span> <span class="ow">in</span> <span class="n">regions</span><span class="p">:</span>
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<span class="n">cx</span><span class="p">,</span> <span class="n">cy</span> <span class="o">=</span> <span class="n">regions</span><span class="p">[</span><span class="nb">id</span><span class="p">]</span>
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<span class="n">val</span> <span class="o">=</span> <span class="n">data</span><span class="p">[</span><span class="nb">id</span><span class="p">]</span>
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<span class="n">circles</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">Circle</span><span class="p">(</span><span class="n">cx</span><span class="p">,</span> <span class="n">cy</span><span class="p">,</span> <span class="nb">id</span><span class="p">,</span> <span class="n">val</span><span class="p">))</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">attr</span> <span class="o">=</span> <span class="n">attr</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">key</span> <span class="o">=</span> <span class="n">value</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">circles</span> <span class="o">=</span> <span class="n">circles</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">compute_radii</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">layout</span><span class="p">(</span><span class="mi">700</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">rescale</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">correct</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">layout</span><span class="p">(</span><span class="mi">200</span><span class="p">,</span> <span class="bp">True</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">rescale</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">correct</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">layout</span><span class="p">(</span><span class="mi">100</span><span class="p">,</span> <span class="bp">False</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">rescale</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">correct</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">to_svg</span><span class="p">()</span></pre></div>
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</div>
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</div>
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<div class='clearall'></div>
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<div class='section' id='section-4'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-4'>#</a>
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</div>
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</div>
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<div class='code'>
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<div class="highlight"><pre> <span class="k">def</span> <span class="nf">load_regions_from_svg</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">,</span> <span class="n">attr</span><span class="p">):</span>
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<span class="kn">import</span> <span class="nn">svg</span> <span class="kn">as</span> <span class="nn">svgdoc</span>
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<span class="n">svg</span> <span class="o">=</span> <span class="n">svgdoc</span><span class="o">.</span><span class="n">Document</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="n">url</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">svg</span> <span class="o">=</span> <span class="n">svg</span>
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<span class="n">g</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">doc</span><span class="o">.</span><span class="n">getElementsByTagName</span><span class="p">(</span><span class="s">'g'</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
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<span class="n">coords</span> <span class="o">=</span> <span class="p">{}</span>
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<span class="k">for</span> <span class="n">path</span> <span class="ow">in</span> <span class="n">g</span><span class="o">.</span><span class="n">getElementsByTagName</span><span class="p">(</span><span class="s">'path'</span><span class="p">):</span>
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<span class="n">path_str</span> <span class="o">=</span> <span class="n">path</span><span class="o">.</span><span class="n">getAttribte</span><span class="p">(</span><span class="s">'d'</span><span class="p">)</span>
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<span class="nb">id</span> <span class="o">=</span> <span class="n">path</span><span class="o">.</span><span class="n">getAttribte</span><span class="p">(</span><span class="s">'data-'</span> <span class="o">+</span> <span class="n">attr</span><span class="p">)</span>
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<span class="n">poly</span> <span class="o">=</span> <span class="n">restore_poly_from_path_str</span><span class="p">(</span><span class="n">path_str</span><span class="p">)</span>
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<span class="n">coords</span><span class="p">[</span><span class="nb">id</span><span class="p">]</span> <span class="o">=</span> <span class="n">poly</span><span class="o">.</span><span class="n">center</span><span class="p">()</span>
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<span class="k">return</span> <span class="n">coords</span></pre></div>
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<div class='clearall'></div>
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<div class='section' id='section-5'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-5'>#</a>
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</div>
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</div>
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<div class='code'>
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<div class="highlight"><pre> <span class="k">def</span> <span class="nf">load_csv</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">url</span><span class="p">,</span> <span class="n">key</span><span class="o">=</span><span class="s">'id'</span><span class="p">,</span> <span class="n">value</span><span class="o">=</span><span class="s">'val'</span><span class="p">):</span>
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<span class="kn">import</span> <span class="nn">csv</span>
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<span class="n">doc</span> <span class="o">=</span> <span class="n">csv</span><span class="o">.</span><span class="n">reader</span><span class="p">(</span><span class="nb">open</span><span class="p">(</span><span class="n">url</span><span class="p">),</span> <span class="n">dialect</span><span class="o">=</span><span class="s">'excel-tab'</span><span class="p">)</span>
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<span class="n">head</span> <span class="o">=</span> <span class="bp">None</span>
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<span class="n">data</span> <span class="o">=</span> <span class="p">{}</span>
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<span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">doc</span><span class="p">:</span>
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<span class="k">if</span> <span class="ow">not</span> <span class="n">head</span><span class="p">:</span>
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<span class="n">head</span> <span class="o">=</span> <span class="n">row</span>
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<span class="k">print</span> <span class="n">head</span>
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<span class="k">else</span><span class="p">:</span>
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<span class="nb">id</span> <span class="o">=</span> <span class="n">row</span><span class="p">[</span><span class="n">head</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">key</span><span class="p">)]</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
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<span class="n">val</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">row</span><span class="p">[</span><span class="n">head</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">value</span><span class="p">)])</span>
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<span class="n">data</span><span class="p">[</span><span class="nb">id</span><span class="p">]</span> <span class="o">=</span> <span class="n">val</span>
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<span class="k">return</span> <span class="n">data</span></pre></div>
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<div class='section' id='section-6'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-6'>#</a>
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<div class='code'>
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<div class="highlight"><pre> <span class="k">def</span> <span class="nf">compute_radii</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
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<span class="kn">import</span> <span class="nn">sys</span><span class="o">,</span> <span class="nn">math</span>
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<span class="n">minv</span> <span class="o">=</span> <span class="mi">0</span>
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<span class="n">maxv</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">maxint</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span>
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<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
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<span class="n">minv</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">minv</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
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<span class="n">maxv</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">maxv</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
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<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
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<span class="n">c</span><span class="o">.</span><span class="n">r</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">pow</span><span class="p">((</span><span class="n">c</span><span class="o">.</span><span class="n">value</span> <span class="o">-</span> <span class="n">minv</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">maxv</span> <span class="o">-</span> <span class="n">minv</span><span class="p">),</span> <span class="mf">0.50</span><span class="p">)</span> <span class="o">*</span> <span class="mi">60</span>
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<span class="n">c</span><span class="o">.</span><span class="n">weight</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">value</span> <span class="o">/</span> <span class="n">maxv</span></pre></div>
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</div>
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</div>
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<div class='clearall'></div>
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<div class='section' id='section-7'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-7'>#</a>
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</div>
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</div>
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<div class='code'>
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<div class="highlight"><pre> <span class="k">def</span> <span class="nf">layout</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">steps</span><span class="o">=</span><span class="mi">100</span><span class="p">,</span> <span class="n">correct</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
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<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">steps</span><span class="p">):</span></pre></div>
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</div>
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</div>
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<div class='clearall'></div>
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<div class='section' id='section-8'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-8'>#</a>
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</div>
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<p>if i % 100 == 0:
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self.toSVG()</p>
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</div>
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<div class='code'>
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<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">layout_step</span><span class="p">(</span><span class="n">correct</span><span class="p">)</span></pre></div>
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</div>
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<div class='clearall'></div>
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<div class='section' id='section-9'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-9'>#</a>
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</div>
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</div>
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<div class='code'>
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<div class="highlight"><pre> <span class="k">def</span> <span class="nf">layout_step</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">correct</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
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<span class="kn">import</span> <span class="nn">math</span>
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<span class="n">pad</span> <span class="o">=</span> <span class="mi">0</span>
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<span class="k">if</span> <span class="n">correct</span><span class="p">:</span>
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<span class="k">for</span> <span class="n">C</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
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<span class="n">v</span> <span class="o">=</span> <span class="n">Vector</span><span class="p">(</span><span class="n">C</span><span class="o">.</span><span class="n">ox</span> <span class="o">-</span> <span class="n">C</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">C</span><span class="o">.</span><span class="n">oy</span> <span class="o">-</span> <span class="n">C</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="n">v</span><span class="o">.</span><span class="n">normalize</span><span class="p">()</span>
|
||||
<span class="n">v</span><span class="o">.</span><span class="n">resize</span><span class="p">(</span><span class="mf">0.5</span><span class="p">)</span>
|
||||
<span class="n">C</span><span class="o">.</span><span class="n">_move</span><span class="p">(</span><span class="n">v</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">v</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">A</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="k">for</span> <span class="n">B</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">A</span> <span class="o">!=</span> <span class="n">B</span><span class="p">:</span>
|
||||
<span class="n">radsq</span> <span class="o">=</span> <span class="p">(</span><span class="n">A</span><span class="o">.</span><span class="n">r</span> <span class="o">+</span> <span class="n">B</span><span class="o">.</span><span class="n">r</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">A</span><span class="o">.</span><span class="n">r</span> <span class="o">+</span> <span class="n">B</span><span class="o">.</span><span class="n">r</span><span class="p">)</span>
|
||||
<span class="n">d</span> <span class="o">=</span> <span class="n">A</span><span class="o">.</span><span class="n">sqdist</span><span class="p">(</span><span class="n">B</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">radsq</span> <span class="o">+</span> <span class="n">pad</span> <span class="o">></span> <span class="n">d</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
<p>move circles away from each other</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">v</span> <span class="o">=</span> <span class="n">Vector</span><span class="p">(</span><span class="n">B</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">A</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">B</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">A</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="n">v</span><span class="o">.</span><span class="n">normalize</span><span class="p">()</span>
|
||||
<span class="n">m</span> <span class="o">=</span> <span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">radsq</span><span class="p">)</span> <span class="o">-</span> <span class="n">math</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">d</span><span class="p">))</span> <span class="o">*</span> <span class="mf">0.25</span>
|
||||
<span class="n">v</span><span class="o">.</span><span class="n">resize</span><span class="p">(</span><span class="n">m</span><span class="p">)</span>
|
||||
<span class="n">A</span><span class="o">.</span><span class="n">_move</span><span class="p">(</span><span class="n">v</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span> <span class="o">*</span> <span class="n">B</span><span class="o">.</span><span class="n">weight</span><span class="p">,</span> <span class="n">v</span><span class="o">.</span><span class="n">y</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span> <span class="o">*</span> <span class="n">B</span><span class="o">.</span><span class="n">weight</span><span class="p">)</span>
|
||||
<span class="n">B</span><span class="o">.</span><span class="n">_move</span><span class="p">(</span><span class="n">v</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="n">A</span><span class="o">.</span><span class="n">weight</span><span class="p">,</span> <span class="n">v</span><span class="o">.</span><span class="n">y</span> <span class="o">*</span> <span class="n">A</span><span class="o">.</span><span class="n">weight</span><span class="p">)</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">C</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="n">C</span><span class="o">.</span><span class="n">move</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">rescale</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">geometry</span> <span class="kn">import</span> <span class="n">BBox</span><span class="p">,</span> <span class="n">View</span>
|
||||
<span class="n">svg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">svg</span>
|
||||
<span class="n">svg_view</span> <span class="o">=</span> <span class="n">svg</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="n">vh</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">svg_view</span><span class="p">[</span><span class="s">'h'</span><span class="p">])</span>
|
||||
<span class="n">vw</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">svg_view</span><span class="p">[</span><span class="s">'w'</span><span class="p">])</span>
|
||||
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="n">r</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">r</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">c</span><span class="o">.</span><span class="n">x</span> <span class="o">+</span> <span class="n">r</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">y</span> <span class="o">+</span> <span class="n">r</span><span class="p">))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">c</span><span class="o">.</span><span class="n">x</span> <span class="o">+</span> <span class="n">r</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">r</span><span class="p">))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">c</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">r</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">y</span> <span class="o">+</span> <span class="n">r</span><span class="p">))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">c</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">r</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">r</span><span class="p">))</span>
|
||||
|
||||
<span class="n">view</span> <span class="o">=</span> <span class="n">View</span><span class="p">(</span><span class="n">bbox</span><span class="p">,</span> <span class="n">vw</span><span class="p">,</span> <span class="n">vh</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="n">c</span><span class="o">.</span><span class="n">r</span> <span class="o">*=</span> <span class="n">view</span><span class="o">.</span><span class="n">scale</span>
|
||||
<span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">=</span> <span class="n">view</span><span class="o">.</span><span class="n">project</span><span class="p">((</span><span class="n">c</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">y</span><span class="p">))</span>
|
||||
<span class="n">c</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">x</span>
|
||||
<span class="n">c</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">y</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">correct</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">for</span> <span class="n">A</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="n">intersects</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">for</span> <span class="n">B</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">A</span> <span class="o">!=</span> <span class="n">B</span><span class="p">:</span>
|
||||
<span class="n">radsq</span> <span class="o">=</span> <span class="p">(</span><span class="n">A</span><span class="o">.</span><span class="n">r</span> <span class="o">+</span> <span class="n">B</span><span class="o">.</span><span class="n">r</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">A</span><span class="o">.</span><span class="n">r</span> <span class="o">+</span> <span class="n">B</span><span class="o">.</span><span class="n">r</span><span class="p">)</span>
|
||||
<span class="n">d</span> <span class="o">=</span> <span class="n">A</span><span class="o">.</span><span class="n">sqdist_o</span><span class="p">(</span><span class="n">B</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">radsq</span> <span class="o">></span> <span class="n">d</span><span class="p">:</span>
|
||||
<span class="n">intersects</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
<span class="k">break</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">intersects</span><span class="p">:</span>
|
||||
<span class="n">A</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">A</span><span class="o">.</span><span class="n">ox</span>
|
||||
<span class="n">A</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">A</span><span class="o">.</span><span class="n">oy</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">to_svg</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="n">svg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">svg</span>
|
||||
|
||||
<span class="n">g</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'g'</span><span class="p">,</span> <span class="n">svg</span><span class="o">.</span><span class="n">root</span><span class="p">,</span> <span class="nb">id</span><span class="o">=</span><span class="s">"cartogram"</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s">"red"</span><span class="p">,</span> <span class="n">fill_opacity</span><span class="o">=</span><span class="s">"0.5"</span><span class="p">)</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">circle</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">circles</span><span class="p">:</span>
|
||||
<span class="n">c</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'circle'</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">cx</span><span class="o">=</span><span class="n">circle</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">cy</span><span class="o">=</span><span class="n">circle</span><span class="o">.</span><span class="n">y</span><span class="p">,</span> <span class="n">r</span><span class="o">=</span><span class="n">circle</span><span class="o">.</span><span class="n">r</span><span class="p">)</span>
|
||||
<span class="n">c</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'data-'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">attr</span><span class="p">,</span> <span class="n">circle</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
|
||||
<span class="n">c</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'data-'</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">key</span><span class="o">.</span><span class="n">lower</span><span class="p">(),</span> <span class="n">circle</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
|
||||
<span class="n">g</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
|
||||
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">preview</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
<p>svg.save('cartogram.svg')</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Circle</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="nb">id</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ox</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">oy</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="nb">id</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">dx</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">dy</span> <span class="o">=</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_move</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">dx</span> <span class="o">+=</span> <span class="n">x</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">dy</span> <span class="o">+=</span> <span class="n">y</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">move</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dx</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dy</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">dx</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">dy</span> <span class="o">=</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'<Circle x=</span><span class="si">%.1f</span><span class="s">, y=</span><span class="si">%.1f</span><span class="s">, id=</span><span class="si">%s</span><span class="s">, val=</span><span class="si">%f</span><span class="s"> >'</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">value</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">sqdist</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">circ</span><span class="p">):</span>
|
||||
<span class="n">dx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">circ</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">dy</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">circ</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="k">return</span> <span class="n">dx</span> <span class="o">*</span> <span class="n">dx</span> <span class="o">+</span> <span class="n">dy</span> <span class="o">*</span> <span class="n">dy</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
<p>been too lazy to code this myself, instead I took code from here
|
||||
http://www.kokkugia.com/wiki/index.php5?title=Python_vector_class</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">sqdist_o</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">circ</span><span class="p">):</span>
|
||||
<span class="n">dx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ox</span> <span class="o">-</span> <span class="n">circ</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">dy</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">oy</span> <span class="o">-</span> <span class="n">circ</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="k">return</span> <span class="n">dx</span> <span class="o">*</span> <span class="n">dx</span> <span class="o">+</span> <span class="n">dy</span> <span class="o">*</span> <span class="n">dy</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-22'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-22'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-23'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-23'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Vector</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-24'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-24'>#</a>
|
||||
</div>
|
||||
<p>Class properties</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-25'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-25'>#</a>
|
||||
</div>
|
||||
<p>represent as a string</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'Vector(</span><span class="si">%s</span><span class="s">, </span><span class="si">%s</span><span class="s">)'</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
|
||||
<span class="sd">'''</span>
|
||||
<span class="sd"> Class Methods / Behaviours</span>
|
||||
<span class="sd"> '''</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-26'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-26'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">zero</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="mf">0.0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="mf">0.0</span>
|
||||
<span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-27'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-27'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">clone</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="n">Vector</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-28'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-28'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">normalize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">math</span> <span class="kn">import</span> <span class="n">sqrt</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">==</span> <span class="mi">0</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">self</span>
|
||||
<span class="n">norm</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="mf">1.0</span> <span class="o">/</span> <span class="n">sqrt</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">))</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">*=</span> <span class="n">norm</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">*=</span> <span class="n">norm</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-29'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-29'>#</a>
|
||||
</div>
|
||||
<p>self.z *= norm</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-30'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-30'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">invert</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="o">-</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="o">-</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-31'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-31'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">resize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sizeFactor</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">normalize</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">scale</span><span class="p">(</span><span class="n">sizeFactor</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-32'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-32'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">minus</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">t</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">-=</span> <span class="n">t</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">-=</span> <span class="n">t</span><span class="o">.</span><span class="n">y</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-33'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-33'>#</a>
|
||||
</div>
|
||||
<p>self.z -= t.z</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-34'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-34'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">plus</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">t</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">+=</span> <span class="n">t</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">+=</span> <span class="n">t</span><span class="o">.</span><span class="n">y</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-35'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-35'>#</a>
|
||||
</div>
|
||||
<p>self.z += t.z</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-36'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-36'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">roundToInt</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-37'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-37'>#</a>
|
||||
</div>
|
||||
<p>Returns the squared length of this vector.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">lengthSquared</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="nb">float</span><span class="p">((</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">)</span> <span class="o">+</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-38'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-38'>#</a>
|
||||
</div>
|
||||
<p>Returns the length of this vector.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">length</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">math</span> <span class="kn">import</span> <span class="n">sqrt</span>
|
||||
<span class="k">return</span> <span class="nb">float</span><span class="p">(</span><span class="n">sqrt</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-39'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-39'>#</a>
|
||||
</div>
|
||||
<p>Computes the dot product of this vector and vector v2</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">dot</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">v2</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="n">v2</span><span class="o">.</span><span class="n">x</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">*</span> <span class="n">v2</span><span class="o">.</span><span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-40'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-40'>#</a>
|
||||
</div>
|
||||
<p>Linearly interpolates between vectors v1 and v2 and returns the result point = (1-alpha)<em>v1 + alpha</em>v2.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">interpolate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">v2</span><span class="p">,</span> <span class="n">alpha</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="nb">float</span><span class="p">((</span><span class="mi">1</span> <span class="o">-</span> <span class="n">alpha</span><span class="p">)</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">+</span> <span class="n">alpha</span> <span class="o">*</span> <span class="n">v2</span><span class="o">.</span><span class="n">x</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="nb">float</span><span class="p">((</span><span class="mi">1</span> <span class="o">-</span> <span class="n">alpha</span><span class="p">)</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">+</span> <span class="n">alpha</span> <span class="o">*</span> <span class="n">v2</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">Vector</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-41'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-41'>#</a>
|
||||
</div>
|
||||
<p>Returns the angle in radians between this vector and the vector parameter;
|
||||
the return value is constrained to the range [0,PI].</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">angle</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">v2</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">math</span> <span class="kn">import</span> <span class="n">acos</span>
|
||||
<span class="n">vDot</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dot</span><span class="p">(</span><span class="n">v2</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">()</span> <span class="o">*</span> <span class="n">v2</span><span class="o">.</span><span class="n">length</span><span class="p">())</span>
|
||||
<span class="k">if</span> <span class="n">vDot</span> <span class="o"><</span> <span class="o">-</span><span class="mf">1.0</span><span class="p">:</span>
|
||||
<span class="n">vDot</span> <span class="o">=</span> <span class="o">-</span><span class="mf">1.0</span>
|
||||
<span class="k">if</span> <span class="n">vDot</span> <span class="o">></span> <span class="mf">1.0</span><span class="p">:</span>
|
||||
<span class="n">vDot</span> <span class="o">=</span> <span class="mf">1.0</span>
|
||||
<span class="k">return</span> <span class="nb">float</span><span class="p">(</span><span class="n">acos</span><span class="p">(</span><span class="n">vDot</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-42'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-42'>#</a>
|
||||
</div>
|
||||
<p>Limits this vector to a given size.
|
||||
NODEBOX USERS: name should change as 'size' and 'scale' are reserved words in Nodebox!</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">limit</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">()</span> <span class="o">></span> <span class="n">size</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">normalize</span><span class="p">()</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">scale</span><span class="p">(</span><span class="n">size</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-43'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-43'>#</a>
|
||||
</div>
|
||||
<p>Point Methods
|
||||
Returns the square of the distance between this tuple and tuple t1.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">distanceSquared</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">t1</span><span class="p">):</span>
|
||||
<span class="n">dx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">t1</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">dy</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">t1</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">dx</span> <span class="o">*</span> <span class="n">dx</span> <span class="o">+</span> <span class="n">dy</span> <span class="o">*</span> <span class="n">dy</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-44'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-44'>#</a>
|
||||
</div>
|
||||
<p>NODEBOX USERS: name should change as 'scale' is reserved word in Nodebox!</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">scale</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">*=</span> <span class="n">s</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">*=</span> <span class="n">s</span>
|
||||
<span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-45'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-45'>#</a>
|
||||
</div>
|
||||
<p>NODEBOX USERS: name should change as 'translate' is reserved word in Nodebox!</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">translate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">vec</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">plus</span><span class="p">(</span><span class="n">vec</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-46'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-46'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">distance</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pt</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">math</span> <span class="kn">import</span> <span class="n">sqrt</span>
|
||||
<span class="n">dx</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">pt</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">dy</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">pt</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="k">return</span> <span class="nb">float</span><span class="p">(</span><span class="n">sqrt</span><span class="p">(</span><span class="n">dx</span> <span class="o">*</span> <span class="n">dx</span> <span class="o">+</span> <span class="n">dy</span> <span class="o">*</span> <span class="n">dy</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-47'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-47'>#</a>
|
||||
</div>
|
||||
<p>restores a list of polygons from a SVG path string</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">restore_poly_from_path_str</span><span class="p">(</span><span class="n">path_str</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-48'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-48'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">contours</span> <span class="o">=</span> <span class="n">path_str</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">'Z'</span><span class="p">)</span> <span class="c"># last contour may be empty</span>
|
||||
<span class="kn">from</span> <span class="nn">Polygon</span> <span class="kn">import</span> <span class="n">Polygon</span> <span class="k">as</span> <span class="n">Poly</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">Poly</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="n">c_str</span> <span class="ow">in</span> <span class="n">contours</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">c_str</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> <span class="o">!=</span> <span class="s">""</span><span class="p">:</span>
|
||||
<span class="n">pts_str</span> <span class="o">=</span> <span class="n">c_str</span><span class="o">.</span><span class="n">strip</span><span class="p">()[</span><span class="mi">1</span><span class="p">:]</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">"L"</span><span class="p">)</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt_str</span> <span class="ow">in</span> <span class="n">pts_str</span><span class="p">:</span>
|
||||
<span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">=</span> <span class="nb">map</span><span class="p">(</span><span class="nb">float</span><span class="p">,</span> <span class="n">pt_str</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">','</span><span class="p">))</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">))</span>
|
||||
<span class="n">poly</span><span class="o">.</span><span class="n">addContour</span><span class="p">(</span><span class="n">pts</span><span class="p">,</span> <span class="n">is_clockwise</span><span class="p">(</span><span class="n">pts</span><span class="p">))</span>
|
||||
<span class="k">return</span> <span class="n">poly</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-49'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-49'>#</a>
|
||||
</div>
|
||||
<p>returns true if a given polygon is in clockwise order</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">is_clockwise</span><span class="p">(</span><span class="n">pts</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-50'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-50'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">s</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'x'</span> <span class="ow">in</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]:</span>
|
||||
<span class="n">x1</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">y1</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="n">x2</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">y2</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">x1</span><span class="p">,</span> <span class="n">y1</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="n">x2</span><span class="p">,</span> <span class="n">y2</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||||
<span class="n">s</span> <span class="o">+=</span> <span class="p">(</span><span class="n">x2</span> <span class="o">-</span> <span class="n">x1</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">y2</span> <span class="o">+</span> <span class="n">y1</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">s</span> <span class="o">>=</span> <span class="mi">0</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
214
source/cli.html
Normal file
214
source/cli.html
Normal file
@@ -0,0 +1,214 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>cli.py</title>
|
||||
<link rel="stylesheet" href="pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>cli.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>command line interface for kartograph</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nn">argparse</span>
|
||||
<span class="kn">import</span> <span class="nn">os.path</span>
|
||||
<span class="kn">import</span> <span class="nn">json</span>
|
||||
<span class="kn">from</span> <span class="nn">errors</span> <span class="kn">import</span> <span class="n">KartographError</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">bcolors</span><span class="p">:</span>
|
||||
<span class="n">HEADER</span> <span class="o">=</span> <span class="s">'</span><span class="se">\033</span><span class="s">[95m'</span>
|
||||
<span class="n">OKBLUE</span> <span class="o">=</span> <span class="s">'</span><span class="se">\033</span><span class="s">[94m'</span>
|
||||
<span class="n">OKGREEN</span> <span class="o">=</span> <span class="s">'</span><span class="se">\033</span><span class="s">[92m'</span>
|
||||
<span class="n">WARNING</span> <span class="o">=</span> <span class="s">'</span><span class="se">\033</span><span class="s">[93m'</span>
|
||||
<span class="n">FAIL</span> <span class="o">=</span> <span class="s">'</span><span class="se">\033</span><span class="s">[91m'</span>
|
||||
<span class="n">ENDC</span> <span class="o">=</span> <span class="s">'</span><span class="se">\033</span><span class="s">[0m'</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">disable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">HEADER</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">OKBLUE</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">OKGREEN</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">WARNING</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">FAIL</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ENDC</span> <span class="o">=</span> <span class="s">''</span>
|
||||
|
||||
<span class="n">parser</span> <span class="o">=</span> <span class="n">argparse</span><span class="o">.</span><span class="n">ArgumentParser</span><span class="p">(</span><span class="n">prog</span><span class="o">=</span><span class="s">'kartograph'</span><span class="p">,</span> <span class="n">description</span><span class="o">=</span><span class="s">'generating svg maps from shapefiles'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>subparsers = parser.add_subparsers(help='sub-command help')</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>parser_svg = subparsers.add_parser('svg', help='generates svg map')</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s">'config'</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="n">argparse</span><span class="o">.</span><span class="n">FileType</span><span class="p">(</span><span class="s">'r'</span><span class="p">),</span> <span class="n">help</span><span class="o">=</span><span class="s">'the configuration for the map. accepts json and yaml.'</span><span class="p">)</span>
|
||||
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s">'--output'</span><span class="p">,</span> <span class="s">'-o'</span><span class="p">,</span> <span class="n">metavar</span><span class="o">=</span><span class="s">'FILE'</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="n">argparse</span><span class="o">.</span><span class="n">FileType</span><span class="p">(</span><span class="s">'w'</span><span class="p">),</span> <span class="n">help</span><span class="o">=</span><span class="s">'the file in which the map will be stored'</span><span class="p">)</span>
|
||||
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s">'--verbose'</span><span class="p">,</span> <span class="s">'-v'</span><span class="p">,</span> <span class="n">nargs</span><span class="o">=</span><span class="s">'?'</span><span class="p">,</span> <span class="n">metavar</span><span class="o">=</span><span class="s">''</span><span class="p">,</span> <span class="n">const</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s">'verbose mode'</span><span class="p">)</span>
|
||||
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s">'--format'</span><span class="p">,</span> <span class="s">'-f'</span><span class="p">,</span> <span class="n">metavar</span><span class="o">=</span><span class="s">'svg|kml'</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s">'output format, if not specified it will be guessed from output filename or default to svg'</span><span class="p">)</span>
|
||||
<span class="n">parser</span><span class="o">.</span><span class="n">add_argument</span><span class="p">(</span><span class="s">'--preview'</span><span class="p">,</span> <span class="s">'-p'</span><span class="p">,</span> <span class="n">nargs</span><span class="o">=</span><span class="s">'?'</span><span class="p">,</span> <span class="n">metavar</span><span class="o">=</span><span class="s">''</span><span class="p">,</span> <span class="n">const</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span> <span class="n">help</span><span class="o">=</span><span class="s">'opens the generated svg for preview'</span><span class="p">)</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">kartograph</span> <span class="kn">import</span> <span class="n">Kartograph</span>
|
||||
<span class="kn">import</span> <span class="nn">time</span>
|
||||
<span class="kn">import</span> <span class="nn">sys</span>
|
||||
<span class="kn">import</span> <span class="nn">os</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_config</span><span class="p">(</span><span class="n">f</span><span class="p">):</span>
|
||||
<span class="n">content</span> <span class="o">=</span> <span class="n">f</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="n">f</span><span class="o">.</span><span class="n">name</span><span class="p">[</span><span class="o">-</span><span class="mi">5</span><span class="p">:]</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="s">'.json'</span><span class="p">:</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">cfg</span> <span class="o">=</span> <span class="n">json</span><span class="o">.</span><span class="n">loads</span><span class="p">(</span><span class="n">content</span><span class="p">)</span>
|
||||
<span class="k">except</span> <span class="ne">Exception</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'parsing of json map configuration failed.</span><span class="se">\n</span><span class="s">'</span> <span class="o">+</span> <span class="n">e</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">cfg</span>
|
||||
<span class="k">elif</span> <span class="n">f</span><span class="o">.</span><span class="n">name</span><span class="p">[</span><span class="o">-</span><span class="mi">5</span><span class="p">:]</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="s">'.yaml'</span><span class="p">:</span>
|
||||
<span class="kn">import</span> <span class="nn">yaml</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">cfg</span> <span class="o">=</span> <span class="n">yaml</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="n">content</span><span class="p">)</span>
|
||||
<span class="k">except</span> <span class="ne">Exception</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'parsing of yaml map configuration failed.</span><span class="se">\n</span><span class="s">'</span> <span class="o">+</span> <span class="n">e</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">cfg</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'supported config formats are .json and .yaml'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">render_map</span><span class="p">(</span><span class="n">args</span><span class="p">):</span>
|
||||
<span class="n">cfg</span> <span class="o">=</span> <span class="n">parse_config</span><span class="p">(</span><span class="n">args</span><span class="o">.</span><span class="n">config</span><span class="p">)</span>
|
||||
<span class="n">K</span> <span class="o">=</span> <span class="n">Kartograph</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="n">args</span><span class="o">.</span><span class="n">format</span><span class="p">:</span>
|
||||
<span class="n">format</span> <span class="o">=</span> <span class="n">args</span><span class="o">.</span><span class="n">format</span>
|
||||
<span class="k">elif</span> <span class="n">args</span><span class="o">.</span><span class="n">output</span><span class="p">:</span>
|
||||
<span class="n">format</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">args</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">name</span><span class="p">)[</span><span class="mi">1</span><span class="p">][</span><span class="mi">1</span><span class="p">:]</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">format</span> <span class="o">=</span> <span class="s">'svg'</span>
|
||||
<span class="k">try</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>generate the map</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">K</span><span class="o">.</span><span class="n">generate</span><span class="p">(</span><span class="n">cfg</span><span class="p">,</span> <span class="n">args</span><span class="o">.</span><span class="n">output</span><span class="p">,</span> <span class="n">verbose</span><span class="o">=</span><span class="n">args</span><span class="o">.</span><span class="n">verbose</span><span class="p">,</span> <span class="n">preview</span><span class="o">=</span><span class="n">args</span><span class="o">.</span><span class="n">preview</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="n">format</span><span class="p">)</span>
|
||||
|
||||
<span class="k">except</span> <span class="ne">Exception</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span>
|
||||
<span class="kn">import</span> <span class="nn">traceback</span>
|
||||
<span class="n">ignore_path_len</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">__file__</span><span class="p">)</span> <span class="o">-</span> <span class="mi">7</span>
|
||||
<span class="n">exc</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">exc_info</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="n">line</span><span class="p">,</span> <span class="n">func</span><span class="p">,</span> <span class="n">code</span><span class="p">)</span> <span class="ow">in</span> <span class="n">traceback</span><span class="o">.</span><span class="n">extract_tb</span><span class="p">(</span><span class="n">exc</span><span class="p">[</span><span class="mi">2</span><span class="p">]):</span>
|
||||
<span class="k">if</span> <span class="n">filename</span><span class="p">[:</span><span class="nb">len</span><span class="p">(</span><span class="n">__file__</span><span class="p">)</span> <span class="o">-</span> <span class="mi">7</span><span class="p">]</span> <span class="o">==</span> <span class="n">__file__</span><span class="p">[:</span><span class="o">-</span><span class="mi">7</span><span class="p">]:</span>
|
||||
<span class="k">print</span> <span class="s">' </span><span class="se">\033</span><span class="s">[1;33;40m</span><span class="si">%s</span><span class="se">\033</span><span class="s">[0m, </span><span class="se">\033</span><span class="s">[0;37;40min</span><span class="se">\033</span><span class="s">[0m </span><span class="si">%s</span><span class="s">()</span><span class="se">\n</span><span class="s"> </span><span class="se">\033</span><span class="s">[1;31;40m</span><span class="si">%d</span><span class="s">:</span><span class="se">\033</span><span class="s">[0m </span><span class="se">\033</span><span class="s">[0;37;40m</span><span class="si">%s</span><span class="se">\033</span><span class="s">[0m'</span> <span class="o">%</span> <span class="p">(</span><span class="n">filename</span><span class="p">[</span><span class="n">ignore_path_len</span><span class="p">:],</span> <span class="n">func</span><span class="p">,</span> <span class="n">line</span><span class="p">,</span> <span class="n">code</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">' </span><span class="si">%s</span><span class="s">, in </span><span class="si">%s</span><span class="s">()</span><span class="se">\n</span><span class="s"> </span><span class="si">%d</span><span class="s">: </span><span class="si">%s</span><span class="s">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="n">func</span><span class="p">,</span> <span class="n">line</span><span class="p">,</span> <span class="n">code</span><span class="p">)</span>
|
||||
<span class="k">print</span>
|
||||
<span class="k">print</span> <span class="n">e</span>
|
||||
<span class="nb">exit</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">)</span>
|
||||
|
||||
<span class="n">parser</span><span class="o">.</span><span class="n">set_defaults</span><span class="p">(</span><span class="n">func</span><span class="o">=</span><span class="n">render_map</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
|
||||
<span class="n">start</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
|
||||
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">args</span> <span class="o">=</span> <span class="n">parser</span><span class="o">.</span><span class="n">parse_args</span><span class="p">()</span>
|
||||
<span class="k">except</span> <span class="ne">IOError</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span>
|
||||
<span class="n">parser</span><span class="o">.</span><span class="n">print_help</span><span class="p">()</span>
|
||||
<span class="k">print</span> <span class="s">'</span><span class="se">\n</span><span class="s">IOError:'</span><span class="p">,</span> <span class="n">e</span>
|
||||
<span class="k">except</span> <span class="ne">Exception</span><span class="p">,</span> <span class="n">e</span><span class="p">:</span>
|
||||
<span class="n">parser</span><span class="o">.</span><span class="n">print_help</span><span class="p">()</span>
|
||||
<span class="k">print</span> <span class="s">'</span><span class="se">\n</span><span class="s">Error:'</span><span class="p">,</span> <span class="n">e</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">args</span><span class="o">.</span><span class="n">func</span><span class="p">(</span><span class="n">args</span><span class="p">)</span>
|
||||
|
||||
<span class="n">elapsed</span> <span class="o">=</span> <span class="p">(</span><span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span> <span class="o">-</span> <span class="n">start</span><span class="p">)</span>
|
||||
<span class="k">print</span> <span class="s">'execution time: </span><span class="si">%.3f</span><span class="s"> secs'</span> <span class="o">%</span> <span class="n">elapsed</span>
|
||||
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">"__main__"</span><span class="p">:</span>
|
||||
<span class="n">main</span><span class="p">()</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
94
source/errors.html
Normal file
94
source/errors.html
Normal file
@@ -0,0 +1,94 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>errors.py</title>
|
||||
<link rel="stylesheet" href="pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>errors.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>error classes for kartograph</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>Base class for exceptions in this module.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">KartographError</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'</span><span class="se">\033</span><span class="s">[0;31;40mKartograph-Error:</span><span class="se">\033</span><span class="s">[0m '</span> <span class="o">+</span> <span class="nb">super</span><span class="p">(</span><span class="n">KartographError</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__str__</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">KartographOptionParseError</span><span class="p">(</span><span class="n">KartographError</span><span class="p">):</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">KartographShapefileAttributesError</span><span class="p">(</span><span class="n">KartographError</span><span class="p">):</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">KartographLayerSourceError</span><span class="p">(</span><span class="n">KartographError</span><span class="p">):</span>
|
||||
<span class="k">pass</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
114
source/filter.html
Normal file
114
source/filter.html
Normal file
@@ -0,0 +1,114 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>filter.py</title>
|
||||
<link rel="stylesheet" href="pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>filter.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>layer filter</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nn">re</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">filter_record</span><span class="p">(</span><span class="n">filt</span><span class="p">,</span> <span class="n">record</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">filt</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'and'</span> <span class="ow">in</span> <span class="n">filt</span><span class="p">:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
<span class="k">for</span> <span class="n">sfilt</span> <span class="ow">in</span> <span class="n">filt</span><span class="p">[</span><span class="s">'and'</span><span class="p">]:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">res</span> <span class="ow">and</span> <span class="n">filter_record</span><span class="p">(</span><span class="n">sfilt</span><span class="p">,</span> <span class="n">record</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="s">'or'</span> <span class="ow">in</span> <span class="n">filt</span><span class="p">:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">for</span> <span class="n">sfilt</span> <span class="ow">in</span> <span class="n">filt</span><span class="p">[</span><span class="s">'or'</span><span class="p">]:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">res</span> <span class="ow">or</span> <span class="n">filter_record</span><span class="p">(</span><span class="n">sfilt</span><span class="p">,</span> <span class="n">record</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">filt</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">filter_single</span><span class="p">(</span><span class="n">filt</span><span class="p">,</span> <span class="n">record</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">res</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">filter_single</span><span class="p">(</span><span class="n">filt</span><span class="p">,</span> <span class="n">record</span><span class="p">):</span>
|
||||
<span class="n">key</span><span class="p">,</span> <span class="n">comp</span><span class="p">,</span> <span class="n">val</span> <span class="o">=</span> <span class="n">filt</span>
|
||||
<span class="n">prop</span> <span class="o">=</span> <span class="n">record</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
|
||||
<span class="n">comp</span> <span class="o">=</span> <span class="n">comp</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s">' '</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="s">'in'</span> <span class="ow">in</span> <span class="n">comp</span><span class="p">:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">prop</span> <span class="ow">in</span> <span class="n">val</span>
|
||||
<span class="k">elif</span> <span class="s">'like'</span> <span class="ow">in</span> <span class="n">comp</span><span class="p">:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="s">'^'</span> <span class="o">+</span> <span class="n">_escape_regex</span><span class="p">(</span><span class="n">val</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s">'%'</span><span class="p">,</span> <span class="s">'.*'</span><span class="p">)</span> <span class="o">+</span> <span class="s">'$'</span><span class="p">,</span> <span class="n">prop</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span>
|
||||
<span class="k">elif</span> <span class="s">'matches'</span> <span class="ow">in</span> <span class="n">comp</span><span class="p">:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">prop</span><span class="p">)</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span>
|
||||
<span class="k">elif</span> <span class="s">'is'</span> <span class="ow">in</span> <span class="n">comp</span> <span class="ow">or</span> <span class="s">'='</span> <span class="ow">in</span> <span class="n">comp</span><span class="p">:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">prop</span> <span class="o">==</span> <span class="n">val</span>
|
||||
<span class="k">elif</span> <span class="s">'greater'</span> <span class="ow">in</span> <span class="n">comp</span> <span class="ow">or</span> <span class="p">(</span><span class="s">'>'</span> <span class="ow">in</span> <span class="n">comp</span><span class="p">):</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">prop</span> <span class="o">></span> <span class="n">val</span>
|
||||
<span class="k">elif</span> <span class="s">'less'</span> <span class="ow">in</span> <span class="n">comp</span> <span class="ow">or</span> <span class="s">'<'</span> <span class="ow">in</span> <span class="n">comp</span><span class="p">:</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="n">prop</span> <span class="o"><</span> <span class="n">val</span>
|
||||
<span class="k">if</span> <span class="s">'not'</span> <span class="ow">in</span> <span class="n">comp</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="ow">not</span> <span class="n">res</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">res</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_escape_regex</span><span class="p">(</span><span class="n">s</span><span class="p">):</span>
|
||||
<span class="n">chars</span> <span class="o">=</span> <span class="p">(</span><span class="s">'.'</span><span class="p">,</span> <span class="s">'*'</span><span class="p">,</span> <span class="s">'?'</span><span class="p">,</span> <span class="s">'+'</span><span class="p">,</span> <span class="s">'('</span><span class="p">,</span> <span class="s">')'</span><span class="p">,</span> <span class="s">'['</span><span class="p">,</span> <span class="s">']'</span><span class="p">,</span> <span class="s">'-'</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">chars</span><span class="p">:</span>
|
||||
<span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="s">'</span><span class="se">\\</span><span class="s">'</span> <span class="o">+</span> <span class="n">c</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">s</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
50
source/geometry/__init__.html
Normal file
50
source/geometry/__init__.html
Normal file
@@ -0,0 +1,50 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>__init__.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>__init__.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>geometry package</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">'Feature'</span><span class="p">,</span> <span class="s">'Geometry'</span><span class="p">,</span> <span class="s">'SolidGeometry'</span><span class="p">,</span> <span class="s">'MultiPolygon'</span><span class="p">,</span> <span class="s">'BBox'</span><span class="p">,</span> <span class="s">'Point'</span><span class="p">,</span> <span class="s">'View'</span><span class="p">,</span> <span class="s">'Line'</span><span class="p">,</span> <span class="s">'PolyLine'</span><span class="p">,</span> <span class="s">'create_feature'</span><span class="p">]</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">feature</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
<span class="kn">from</span> <span class="nn">geometry</span> <span class="kn">import</span> <span class="n">Geometry</span><span class="p">,</span> <span class="n">SolidGeometry</span>
|
||||
<span class="kn">from</span> <span class="nn">polygon</span> <span class="kn">import</span> <span class="n">MultiPolygon</span>
|
||||
<span class="kn">from</span> <span class="nn">point</span> <span class="kn">import</span> <span class="n">Point</span>
|
||||
<span class="kn">from</span> <span class="nn">bbox</span> <span class="kn">import</span> <span class="n">BBox</span>
|
||||
<span class="kn">from</span> <span class="nn">view</span> <span class="kn">import</span> <span class="n">View</span>
|
||||
<span class="kn">from</span> <span class="nn">line</span> <span class="kn">import</span> <span class="n">Line</span><span class="p">,</span> <span class="n">PolyLine</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
195
source/geometry/bbox.html
Normal file
195
source/geometry/bbox.html
Normal file
@@ -0,0 +1,195 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>bbox.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>bbox.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">point</span> <span class="kn">import</span> <span class="n">Point</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>2D bounding box</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">BBox</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">width</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">height</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">left</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">top</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="kn">import</span> <span class="nn">sys</span>
|
||||
<span class="k">if</span> <span class="n">width</span> <span class="o">==</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmin</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">maxint</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmax</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">maxint</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmin</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">left</span> <span class="o">=</span> <span class="n">left</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmax</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">right</span> <span class="o">=</span> <span class="n">left</span> <span class="o">+</span> <span class="n">width</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">width</span> <span class="o">=</span> <span class="n">width</span>
|
||||
<span class="k">if</span> <span class="n">height</span> <span class="o">==</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymin</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">maxint</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymax</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">maxint</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymin</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">top</span> <span class="o">=</span> <span class="n">top</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymax</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">bottom</span> <span class="o">=</span> <span class="n">height</span> <span class="o">+</span> <span class="n">top</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">height</span> <span class="o">=</span> <span class="n">height</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">update</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pt</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">pt</span><span class="p">,</span> <span class="n">Point</span><span class="p">):</span>
|
||||
<span class="n">pt</span> <span class="o">=</span> <span class="n">Point</span><span class="p">(</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmin</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">xmin</span><span class="p">,</span> <span class="n">pt</span><span class="o">.</span><span class="n">x</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymin</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ymin</span><span class="p">,</span> <span class="n">pt</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmax</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">xmax</span><span class="p">,</span> <span class="n">pt</span><span class="o">.</span><span class="n">x</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymax</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ymax</span><span class="p">,</span> <span class="n">pt</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">left</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmin</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">top</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymin</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">right</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmax</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">bottom</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymax</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">width</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmax</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmin</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">height</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymax</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymin</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>returns true if two bounding boxes overlap</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">intersects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">bbox</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="n">bbox</span><span class="o">.</span><span class="n">left</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">right</span> <span class="ow">and</span> <span class="n">bbox</span><span class="o">.</span><span class="n">right</span> <span class="o">></span> <span class="bp">self</span><span class="o">.</span><span class="n">left</span> <span class="ow">and</span> <span class="n">bbox</span><span class="o">.</span><span class="n">top</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">bottom</span> <span class="ow">and</span> <span class="n">bbox</span><span class="o">.</span><span class="n">bottom</span> <span class="o">></span> <span class="bp">self</span><span class="o">.</span><span class="n">top</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>check if a point is inside the bbox</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">check_point</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pt</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">></span> <span class="bp">self</span><span class="o">.</span><span class="n">xmin</span> <span class="ow">and</span> <span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmax</span> <span class="ow">and</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">></span> <span class="bp">self</span><span class="o">.</span><span class="n">ymin</span> <span class="ow">and</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymax</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'BBox(x=</span><span class="si">%.2f</span><span class="s">, y=</span><span class="si">%.2f</span><span class="s">, w=</span><span class="si">%.2f</span><span class="s">, h=</span><span class="si">%.2f</span><span class="s">)'</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">top</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">width</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">height</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">bbox</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">Point</span><span class="p">(</span><span class="n">bbox</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">bbox</span><span class="o">.</span><span class="n">top</span><span class="p">))</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">Point</span><span class="p">(</span><span class="n">bbox</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">bbox</span><span class="o">.</span><span class="n">bottom</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">inflate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">amount</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">inflate</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="n">inflate</span><span class="p">:</span>
|
||||
<span class="n">d</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">width</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">height</span><span class="p">)</span>
|
||||
<span class="n">amount</span> <span class="o">+=</span> <span class="n">d</span> <span class="o">*</span> <span class="n">inflate</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmin</span> <span class="o">-=</span> <span class="n">amount</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymin</span> <span class="o">-=</span> <span class="n">amount</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">xmax</span> <span class="o">+=</span> <span class="n">amount</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">ymax</span> <span class="o">+=</span> <span class="n">amount</span>
|
||||
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">left</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmin</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">top</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymin</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">right</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmax</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">bottom</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymax</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">width</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmax</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">xmin</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">height</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymax</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">ymin</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
279
source/geometry/geometry.html
Normal file
279
source/geometry/geometry.html
Normal file
@@ -0,0 +1,279 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>geometry.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>geometry.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>DEPRECATED</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
<p>base class for all geometry</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Geometry</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>project geometry</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proj</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'project() is not implemented'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">bbox</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'bbox() is not implemented'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_view</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">view</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'project_view() is not implemented'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">to_svg</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">round</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'to_svg() is not implemented'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">crop_to</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">view_bounds</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'crop_to() is not implemented'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">substract_geom</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geom</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'substract_geom() is not implemented yet'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">is_emtpy</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="bp">False</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">unify</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'unify() is not implemented yet'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>returns a list of point lists</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">points</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'points() is not implemented yet'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geom</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'join() is not implemented yet'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
<p>base class for all solid geometry, e.g. polygons</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">SolidGeometry</span><span class="p">(</span><span class="n">Geometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
<p>calculates area for this geometry</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">area</span><span class="p">():</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'area() is not implemented'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
<p>calculates centroid for this geometry</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">centroid</span><span class="p">():</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'centroid() is not implemented'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">invalidate</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__area</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
519
source/geometry/line.html
Normal file
519
source/geometry/line.html
Normal file
@@ -0,0 +1,519 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>line.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>line.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">bbox</span> <span class="kn">import</span> <span class="n">BBox</span>
|
||||
<span class="kn">from</span> <span class="nn">geometry</span> <span class="kn">import</span> <span class="n">Geometry</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>polyline</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">PolyLine</span><span class="p">(</span><span class="n">Geometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">contours</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">contours</span> <span class="o">=</span> <span class="n">contours</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>returns the bounding box of the line</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">bbox</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="n">pts</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">:</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">pts</span><span class="p">:</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">bbox</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>projects the line to a map projection</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proj</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">contours</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">points</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">:</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">points</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">proj</span><span class="o">.</span><span class="n">_visible</span><span class="p">(</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">]):</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="k">if</span> <span class="n">p</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="n">contours</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="n">contours</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">PolyLine</span><span class="p">(</span><span class="n">contours</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>transforms the line to a new view</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_view</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">view</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">contours</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">points</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">:</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">points</span><span class="p">:</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="n">view</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
|
||||
<span class="n">contours</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">PolyLine</span><span class="p">(</span><span class="n">contours</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>constructs a svg representation of this line</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">to_svg</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">svg</span><span class="p">,</span> <span class="nb">round</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">path_str</span> <span class="o">=</span> <span class="s">""</span>
|
||||
<span class="k">if</span> <span class="nb">round</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'</span><span class="si">%f</span><span class="s">,</span><span class="si">%f</span><span class="s">'</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'%.'</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="nb">round</span><span class="p">)</span> <span class="o">+</span> <span class="s">'f'</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="n">fmt</span> <span class="o">+</span> <span class="s">','</span> <span class="o">+</span> <span class="n">fmt</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">points</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">:</span>
|
||||
<span class="n">path_str</span> <span class="o">+=</span> <span class="s">"M "</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">points</span><span class="p">:</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">fmt</span> <span class="o">%</span> <span class="p">(</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">]))</span>
|
||||
<span class="n">path_str</span> <span class="o">+=</span> <span class="s">'L '</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
|
||||
<span class="n">path</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'path'</span><span class="p">,</span> <span class="n">d</span><span class="o">=</span><span class="n">path_str</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">path</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">crop_to</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geom</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>skip</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">is_empty</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">unify</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.simplify</span> <span class="kn">import</span> <span class="n">unify_polygon</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">)):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">unify_polygon</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">[</span><span class="n">i</span><span class="p">],</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">points</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
<p>is called after the points of this geometry have been
|
||||
changed from outside this class</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">update</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
<p>simple line (= list of points)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Line</span><span class="p">(</span><span class="n">Geometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">points</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">pts</span> <span class="o">=</span> <span class="n">points</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
<p>returns the bounding box of the line</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">bbox</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">pts</span><span class="p">:</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">bbox</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-22'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-22'>#</a>
|
||||
</div>
|
||||
<p>projects the line to a map projection</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proj</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-23'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-23'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">pts</span><span class="p">:</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="k">if</span> <span class="n">p</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">Line</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-24'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-24'>#</a>
|
||||
</div>
|
||||
<p>transforms the line to a new view</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_view</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">view</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-25'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-25'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">pts</span><span class="p">:</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="n">view</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">Line</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-26'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-26'>#</a>
|
||||
</div>
|
||||
<p>constructs a svg representation of this line</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">to_svg</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">svg</span><span class="p">,</span> <span class="nb">round</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-27'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-27'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">path_str</span> <span class="o">=</span> <span class="s">""</span>
|
||||
<span class="k">if</span> <span class="nb">round</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'</span><span class="si">%f</span><span class="s">,</span><span class="si">%f</span><span class="s">'</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'%.'</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="nb">round</span><span class="p">)</span> <span class="o">+</span> <span class="s">'f'</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="n">fmt</span> <span class="o">+</span> <span class="s">','</span> <span class="o">+</span> <span class="n">fmt</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">pts</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">path_str</span> <span class="o">==</span> <span class="s">""</span><span class="p">:</span>
|
||||
<span class="n">path_str</span> <span class="o">=</span> <span class="s">"M"</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">path_str</span> <span class="o">+=</span> <span class="s">"L"</span>
|
||||
<span class="n">path_str</span> <span class="o">+=</span> <span class="n">fmt</span> <span class="o">%</span> <span class="p">(</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
|
||||
<span class="n">path</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'path'</span><span class="p">,</span> <span class="n">d</span><span class="o">=</span><span class="n">path_str</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">path</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-28'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-28'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">crop_to</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geom</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-29'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-29'>#</a>
|
||||
</div>
|
||||
<p>skip</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="bp">self</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-30'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-30'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">is_empty</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">pts</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-31'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-31'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">unify</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.simplify</span> <span class="kn">import</span> <span class="n">unify_polygon</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">pts</span> <span class="o">=</span> <span class="n">unify_polygon</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">pts</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-32'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-32'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">points</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">pts</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-33'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-33'>#</a>
|
||||
</div>
|
||||
<p>is called after the points of this geometry have been
|
||||
changed from outside this class</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">update</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-34'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-34'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">pass</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
141
source/geometry/point.html
Normal file
141
source/geometry/point.html
Normal file
@@ -0,0 +1,141 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>point.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>point.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>base class for points, used by line and bbox</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Point</span><span class="p">():</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">x</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">y</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>emulate python's container types</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proj</span><span class="p">):</span>
|
||||
<span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">x</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">y</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="mi">2</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">k</span><span class="p">):</span>
|
||||
<span class="n">pt</span> <span class="o">=</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">pt</span><span class="p">[</span><span class="n">k</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">k</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="n">k</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">value</span>
|
||||
<span class="k">elif</span> <span class="n">k</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">value</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="ne">IndexError</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__delitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s">'deletion not supported'</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
625
source/geometry/polygon.html
Normal file
625
source/geometry/polygon.html
Normal file
@@ -0,0 +1,625 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>polygon.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>polygon.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">geometry</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
<span class="kn">from</span> <span class="nn">bbox</span> <span class="kn">import</span> <span class="n">BBox</span>
|
||||
<span class="kn">import</span> <span class="nn">utils</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>DEPRECATED! we use shapely.geometry.MultiPolygon instead</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
<p>Complex polygons</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">MultiPolygon</span><span class="p">(</span><span class="n">SolidGeometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">contours</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__area</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__areas</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__centroid</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">apply_contours</span><span class="p">(</span><span class="n">contours</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>constructs a Polygon from contours</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="nd">@staticmethod</span>
|
||||
<span class="k">def</span> <span class="nf">fromPoly</span><span class="p">(</span><span class="n">poly</span><span class="p">):</span>
|
||||
<span class="n">contours</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">poly</span><span class="p">)):</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="n">poly</span><span class="o">.</span><span class="n">contour</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<span class="n">contours</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">MultiPolygon</span><span class="p">(</span><span class="n">contours</span><span class="p">)</span>
|
||||
|
||||
<span class="k">def</span> <span class="nf">apply_contours</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">contours</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span> <span class="o">=</span> <span class="n">contours</span>
|
||||
<span class="kn">from</span> <span class="nn">Polygon</span> <span class="kn">import</span> <span class="n">Polygon</span> <span class="k">as</span> <span class="n">GPCPoly</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">GPCPoly</span><span class="p">()</span>
|
||||
<span class="n">skip</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="n">pts_</span> <span class="ow">in</span> <span class="n">contours</span><span class="p">:</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">pts_</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'deleted'</span> <span class="ow">in</span> <span class="n">pt</span> <span class="ow">and</span> <span class="n">pt</span><span class="o">.</span><span class="n">deleted</span> <span class="ow">is</span> <span class="bp">True</span><span class="p">:</span>
|
||||
<span class="n">skip</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">]))</span>
|
||||
<span class="n">ishole</span> <span class="o">=</span> <span class="n">utils</span><span class="o">.</span><span class="n">is_clockwise</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">></span> <span class="mi">2</span><span class="p">:</span>
|
||||
<span class="n">poly</span><span class="o">.</span><span class="n">addContour</span><span class="p">(</span><span class="n">pts</span><span class="p">,</span> <span class="n">ishole</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">poly</span> <span class="o">=</span> <span class="n">poly</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">area</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__area</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__area</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__area</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="o">.</span><span class="n">area</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__area</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>returns array of areas of all sub-polygons areas of holes are < 0</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">areas</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__areas</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__areas</span>
|
||||
<span class="n">a</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="p">)):</span>
|
||||
<span class="n">t</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="o">.</span><span class="n">area</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="o">.</span><span class="n">isHole</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
|
||||
<span class="n">t</span> <span class="o">*=</span> <span class="o">-</span><span class="mi">1</span>
|
||||
<span class="n">a</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">t</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__areas</span> <span class="o">=</span> <span class="n">a</span>
|
||||
<span class="k">return</span> <span class="n">a</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
<p>returns the center of gravity for this polygon</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">centroid</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__centroid</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__centroid</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__centroid</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="o">.</span><span class="n">center</span><span class="p">()</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__centroid</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>smart bounding box</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">bbox</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">bb</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="n">min_area</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="n">bb</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="o">.</span><span class="n">boundingBox</span><span class="p">())</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">areas</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">areas</span><span class="p">()</span>
|
||||
<span class="n">max_a</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">areas</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="p">)):</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="o">.</span><span class="n">isHole</span><span class="p">(</span><span class="n">i</span><span class="p">):</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="n">a</span> <span class="o">=</span> <span class="n">areas</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">a</span> <span class="o"><</span> <span class="n">max_a</span> <span class="o">*</span> <span class="n">min_area</span><span class="p">:</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="n">bb</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="o">.</span><span class="n">boundingBox</span><span class="p">(</span><span class="n">i</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">bb</span><span class="p">:</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">]))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">]))</span>
|
||||
<span class="k">return</span> <span class="n">bbox</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
<p>returns a new multi-polygon whose contours are
|
||||
projected to a map projection</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proj</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">in_contours</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span>
|
||||
<span class="n">out_contours</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pts</span> <span class="ow">in</span> <span class="n">in_contours</span><span class="p">:</span>
|
||||
<span class="n">pcont</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">pcont</span> <span class="o">!=</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">out_contours</span> <span class="o">+=</span> <span class="n">pcont</span>
|
||||
<span class="k">return</span> <span class="n">MultiPolygon</span><span class="p">(</span><span class="n">out_contours</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
<p>returns a new multi-polygon whose contours are
|
||||
projected to a new view</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_view</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">view</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">contours</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span>
|
||||
<span class="n">out</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">contour</span> <span class="ow">in</span> <span class="n">contours</span><span class="p">:</span>
|
||||
<span class="n">out_c</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">contour</span><span class="p">:</span>
|
||||
<span class="n">pt</span> <span class="o">=</span> <span class="n">view</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="n">out_c</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="n">out</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">out_c</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">contours</span> <span class="o">=</span> <span class="n">out</span>
|
||||
<span class="n">out_poly</span> <span class="o">=</span> <span class="n">MultiPolygon</span><span class="p">(</span><span class="n">out</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">out_poly</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">crop_to</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">view_bounds</span><span class="p">):</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span> <span class="o">&</span> <span class="n">view_bounds</span><span class="o">.</span><span class="n">poly</span>
|
||||
<span class="k">return</span> <span class="n">MultiPolygon</span><span class="o">.</span><span class="n">fromPoly</span><span class="p">(</span><span class="n">poly</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">substract_geom</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geom</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">MultiPolygon</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span><span class="s">'substraction is allowed for polygons only, yet'</span><span class="p">)</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span> <span class="o">-</span> <span class="n">geom</span><span class="o">.</span><span class="n">poly</span>
|
||||
<span class="k">return</span> <span class="n">MultiPolygon</span><span class="o">.</span><span class="n">fromPoly</span><span class="p">(</span><span class="n">poly</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
<p>constructs a svg representation of this polygon</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">to_svg</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">svg</span><span class="p">,</span> <span class="nb">round</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">path_str</span> <span class="o">=</span> <span class="s">""</span>
|
||||
<span class="k">if</span> <span class="nb">round</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'</span><span class="si">%f</span><span class="s">,</span><span class="si">%f</span><span class="s">'</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'%.'</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="nb">round</span><span class="p">)</span> <span class="o">+</span> <span class="s">'f'</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="n">fmt</span> <span class="o">+</span> <span class="s">','</span> <span class="o">+</span> <span class="n">fmt</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">pts</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">:</span>
|
||||
<span class="n">cont_str</span> <span class="o">=</span> <span class="s">""</span>
|
||||
<span class="n">kept</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">pts</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'deleted'</span> <span class="ow">in</span> <span class="n">pt</span> <span class="ow">and</span> <span class="n">pt</span><span class="o">.</span><span class="n">deleted</span> <span class="ow">is</span> <span class="bp">True</span><span class="p">:</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="n">kept</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">kept</span><span class="p">)</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">kept</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">cont_str</span> <span class="o">==</span> <span class="s">""</span><span class="p">:</span>
|
||||
<span class="n">cont_str</span> <span class="o">=</span> <span class="s">"M"</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">cont_str</span> <span class="o">+=</span> <span class="s">"L"</span>
|
||||
<span class="n">cont_str</span> <span class="o">+=</span> <span class="n">fmt</span> <span class="o">%</span> <span class="n">pt</span>
|
||||
<span class="n">cont_str</span> <span class="o">+=</span> <span class="s">"Z "</span>
|
||||
<span class="n">path_str</span> <span class="o">+=</span> <span class="n">cont_str</span>
|
||||
|
||||
<span class="k">if</span> <span class="n">path_str</span> <span class="o">==</span> <span class="s">""</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">None</span>
|
||||
|
||||
<span class="n">path</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'path'</span><span class="p">,</span> <span class="n">d</span><span class="o">=</span><span class="n">path_str</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">path</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-22'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-22'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">is_empty</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-23'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-23'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">unify</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.simplify</span> <span class="kn">import</span> <span class="n">unify_polygons</span>
|
||||
<span class="n">contours</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span>
|
||||
<span class="n">contours</span> <span class="o">=</span> <span class="n">unify_polygons</span><span class="p">(</span><span class="n">contours</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">apply_contours</span><span class="p">(</span><span class="n">contours</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-24'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-24'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">points</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">contours</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-25'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-25'>#</a>
|
||||
</div>
|
||||
<p>is called after the points of this geometry are
|
||||
changed from outside this class</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">update</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-26'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-26'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">apply_contours</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">contours</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-27'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-27'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">to_kml</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">round</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">pykml.factory</span> <span class="kn">import</span> <span class="n">KML_ElementMaker</span> <span class="k">as</span> <span class="n">KML</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">Polygon</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">tesselate</span><span class="p">(</span><span class="s">"1"</span><span class="p">)</span>
|
||||
<span class="p">)</span>
|
||||
<span class="n">outer</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">outerBoundaryIs</span><span class="p">()</span>
|
||||
<span class="n">inner</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">innerBoundaryIs</span><span class="p">()</span>
|
||||
<span class="n">has_inner</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="p">)):</span>
|
||||
<span class="n">cnt</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">poly</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="n">coords</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">cnt</span><span class="p">:</span>
|
||||
<span class="n">coords</span> <span class="o">+=</span> <span class="s">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="n">p</span><span class="p">))</span> <span class="o">+</span> <span class="s">' '</span>
|
||||
<span class="n">ring</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">LinearRing</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">coordinates</span><span class="p">(</span><span class="n">coords</span><span class="p">)</span>
|
||||
<span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-28'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-28'>#</a>
|
||||
</div>
|
||||
<p>hole = self.poly.isHole(i)
|
||||
if hole == False:</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">outer</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">ring</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-29'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-29'>#</a>
|
||||
</div>
|
||||
<p>else:
|
||||
inner.append(ring)
|
||||
has_inner = True</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">poly</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">outer</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">has_inner</span><span class="p">:</span>
|
||||
<span class="n">poly</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">inner</span><span class="p">)</span>
|
||||
|
||||
<span class="k">return</span> <span class="n">poly</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-30'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-30'>#</a>
|
||||
</div>
|
||||
<p>splits the geometry into several line segments</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">to_line_segments</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-31'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-31'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">lines</span> <span class="o">=</span> <span class="p">[]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-32'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-32'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">from_line_segments</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lines</span> <span class="o">=</span> <span class="p">[]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-33'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-33'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Polygon</span><span class="p">(</span><span class="n">SolidGeometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-34'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-34'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">points</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__area</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__centroid</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">points</span> <span class="o">=</span> <span class="n">points</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-35'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-35'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">area</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__area</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__area</span>
|
||||
<span class="n">a</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">points</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<span class="n">p0</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="n">p1</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||||
<span class="n">a</span> <span class="o">+=</span> <span class="n">p0</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="n">p1</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">p1</span><span class="o">.</span><span class="n">x</span> <span class="o">*</span> <span class="n">p0</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">__area</span> <span class="o">=</span> <span class="nb">abs</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="o">*</span> <span class="o">.</span><span class="mi">5</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__area</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-36'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-36'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">proj</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">invalidate</span><span class="p">()</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">points</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">points</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
196
source/geometry/utils.html
Normal file
196
source/geometry/utils.html
Normal file
@@ -0,0 +1,196 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>utils.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>utils.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>geometry utils</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>returns true if a given linear ring is in clockwise order</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">is_clockwise</span><span class="p">(</span><span class="n">pts</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">s</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'x'</span> <span class="ow">in</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]:</span>
|
||||
<span class="n">x1</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">y1</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="n">x2</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="n">y2</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">x1</span><span class="p">,</span> <span class="n">y1</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="n">x2</span><span class="p">,</span> <span class="n">y2</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
||||
<span class="n">s</span> <span class="o">+=</span> <span class="p">(</span><span class="n">x2</span> <span class="o">-</span> <span class="n">x1</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">y2</span> <span class="o">+</span> <span class="n">y1</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">s</span> <span class="o">>=</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">bbox_to_polygon</span><span class="p">(</span><span class="n">bbox</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span>
|
||||
<span class="n">s</span> <span class="o">=</span> <span class="n">bbox</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">Polygon</span><span class="p">([(</span><span class="n">s</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">s</span><span class="o">.</span><span class="n">bottom</span><span class="p">),</span> <span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="n">s</span><span class="o">.</span><span class="n">top</span><span class="p">),</span> <span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">s</span><span class="o">.</span><span class="n">top</span><span class="p">),</span> <span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">right</span><span class="p">,</span> <span class="n">s</span><span class="o">.</span><span class="n">bottom</span><span class="p">)])</span>
|
||||
<span class="k">return</span> <span class="n">poly</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">geom_to_bbox</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.geometry</span> <span class="kn">import</span> <span class="n">BBox</span>
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">MultiPolygon</span>
|
||||
<span class="k">if</span> <span class="bp">True</span> <span class="ow">or</span> <span class="n">min_area</span> <span class="o">==</span> <span class="mi">0</span> <span class="ow">or</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">MultiPolygon</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>if no minimum area ratio is set or the geometry
|
||||
is not a multipart geometry, we simply use the
|
||||
full bbox</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">minx</span><span class="p">,</span> <span class="n">miny</span><span class="p">,</span> <span class="n">maxx</span><span class="p">,</span> <span class="n">maxy</span> <span class="o">=</span> <span class="n">geom</span><span class="o">.</span><span class="n">bounds</span>
|
||||
<span class="k">return</span> <span class="n">BBox</span><span class="p">(</span><span class="n">width</span><span class="o">=</span><span class="n">maxx</span> <span class="o">-</span> <span class="n">minx</span><span class="p">,</span> <span class="n">height</span><span class="o">=</span><span class="n">maxy</span> <span class="o">-</span> <span class="n">miny</span><span class="p">,</span> <span class="n">left</span><span class="o">=</span><span class="n">minx</span><span class="p">,</span> <span class="n">top</span><span class="o">=</span><span class="n">miny</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>for multipart geometry we use only the bbox of
|
||||
the 'biggest' sub-geometries, depending on min_area</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">()</span>
|
||||
<span class="n">areas</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">bb</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">polygon</span> <span class="ow">in</span> <span class="n">geom</span><span class="o">.</span><span class="n">geoms</span><span class="p">:</span>
|
||||
<span class="n">areas</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">polygon</span><span class="o">.</span><span class="n">area</span><span class="p">)</span>
|
||||
<span class="n">max_a</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">areas</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">geom</span><span class="o">.</span><span class="n">geoms</span><span class="p">)):</span>
|
||||
<span class="n">a</span> <span class="o">=</span> <span class="n">areas</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">a</span> <span class="o"><</span> <span class="n">max_a</span> <span class="o">*</span> <span class="n">min_area</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>ignore this sub polygon since it is too small</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">continue</span>
|
||||
<span class="n">bb</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">geom</span><span class="o">.</span><span class="n">geoms</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">bounds</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">b</span> <span class="ow">in</span> <span class="n">bb</span><span class="p">:</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">]))</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">]))</span>
|
||||
<span class="k">return</span> <span class="n">bbox</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>joins polygonal features</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">join_features</span><span class="p">(</span><span class="n">features</span><span class="p">,</span> <span class="n">props</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">from</span> <span class="nn">feature</span> <span class="kn">import</span> <span class="n">MultiPolygonFeature</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">features</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">features</span>
|
||||
|
||||
<span class="n">joined</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">polygons</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">feat</span> <span class="ow">in</span> <span class="n">features</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">feat</span><span class="p">,</span> <span class="n">MultiPolygonFeature</span><span class="p">):</span>
|
||||
<span class="n">polygons</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">feat</span><span class="o">.</span><span class="n">geom</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">joined</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">feat</span><span class="p">)</span> <span class="c"># cannot join this</span>
|
||||
|
||||
<span class="n">polygons</span> <span class="o">=</span> <span class="nb">filter</span><span class="p">(</span><span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="n">x</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">,</span> <span class="n">polygons</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">polygons</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">polygons</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">for</span> <span class="n">poly2</span> <span class="ow">in</span> <span class="n">polygons</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">poly</span><span class="o">.</span><span class="n">union</span><span class="p">(</span><span class="n">poly2</span><span class="p">)</span>
|
||||
<span class="n">joined</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">MultiPolygonFeature</span><span class="p">(</span><span class="n">poly</span><span class="p">,</span> <span class="n">props</span><span class="p">))</span>
|
||||
<span class="k">return</span> <span class="n">joined</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
226
source/geometry/view.html
Normal file
226
source/geometry/view.html
Normal file
@@ -0,0 +1,226 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>view.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>view.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span><span class="p">,</span> <span class="n">MultiPolygon</span><span class="p">,</span> <span class="n">LineString</span><span class="p">,</span> <span class="n">MultiLineString</span><span class="p">,</span> <span class="n">MultiPoint</span><span class="p">,</span> <span class="n">Point</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.errors</span> <span class="kn">import</span> <span class="n">KartographError</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>translates a point to a view</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">View</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">bbox</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">width</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">height</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">padding</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">bbox</span> <span class="o">=</span> <span class="n">bbox</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">width</span> <span class="o">=</span> <span class="n">width</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">padding</span> <span class="o">=</span> <span class="n">padding</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">height</span> <span class="o">=</span> <span class="n">height</span>
|
||||
<span class="k">if</span> <span class="n">bbox</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">scale</span> <span class="o">=</span> <span class="nb">min</span><span class="p">((</span><span class="n">width</span> <span class="o">-</span> <span class="n">padding</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span> <span class="o">/</span> <span class="n">bbox</span><span class="o">.</span><span class="n">width</span><span class="p">,</span> <span class="p">(</span><span class="n">height</span> <span class="o">-</span> <span class="n">padding</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span> <span class="o">/</span> <span class="n">bbox</span><span class="o">.</span><span class="n">height</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pt</span><span class="p">):</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">bbox</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">bbox</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">pt</span>
|
||||
<span class="n">s</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scale</span>
|
||||
<span class="n">h</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">height</span>
|
||||
<span class="n">w</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">width</span>
|
||||
<span class="n">px</span> <span class="o">=</span> <span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="n">py</span> <span class="o">=</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="n">x</span> <span class="o">=</span> <span class="p">(</span><span class="n">px</span> <span class="o">-</span> <span class="n">bbox</span><span class="o">.</span><span class="n">left</span><span class="p">)</span> <span class="o">*</span> <span class="n">s</span> <span class="o">+</span> <span class="p">(</span><span class="n">w</span> <span class="o">-</span> <span class="n">bbox</span><span class="o">.</span><span class="n">width</span> <span class="o">*</span> <span class="n">s</span><span class="p">)</span> <span class="o">*</span> <span class="o">.</span><span class="mi">5</span>
|
||||
<span class="n">y</span> <span class="o">=</span> <span class="p">(</span><span class="n">py</span> <span class="o">-</span> <span class="n">bbox</span><span class="o">.</span><span class="n">top</span><span class="p">)</span> <span class="o">*</span> <span class="n">s</span> <span class="o">+</span> <span class="p">(</span><span class="n">h</span> <span class="o">-</span> <span class="n">bbox</span><span class="o">.</span><span class="n">height</span> <span class="o">*</span> <span class="n">s</span><span class="p">)</span> <span class="o">*</span> <span class="o">.</span><span class="mi">5</span>
|
||||
<span class="k">return</span> <span class="p">((</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">),</span> <span class="n">Point</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">))[</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">pt</span><span class="p">,</span> <span class="n">Point</span><span class="p">)]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_inverse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pt</span><span class="p">):</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">bbox</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">bbox</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">pt</span>
|
||||
<span class="n">s</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scale</span>
|
||||
<span class="n">h</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">height</span>
|
||||
<span class="n">w</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">width</span>
|
||||
<span class="n">x</span> <span class="o">=</span> <span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="n">y</span> <span class="o">=</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
|
||||
<span class="n">px</span> <span class="o">=</span> <span class="p">(</span><span class="n">x</span> <span class="o">-</span> <span class="p">(</span><span class="n">w</span> <span class="o">-</span> <span class="n">bbox</span><span class="o">.</span><span class="n">width</span> <span class="o">*</span> <span class="n">s</span><span class="p">)</span> <span class="o">*</span> <span class="o">.</span><span class="mi">5</span><span class="p">)</span> <span class="o">/</span> <span class="n">s</span> <span class="o">+</span> <span class="n">bbox</span><span class="o">.</span><span class="n">left</span>
|
||||
<span class="n">py</span> <span class="o">=</span> <span class="p">(</span><span class="n">y</span> <span class="o">-</span> <span class="p">(</span><span class="n">h</span> <span class="o">-</span> <span class="n">bbox</span><span class="o">.</span><span class="n">height</span> <span class="o">*</span> <span class="n">s</span><span class="p">)</span> <span class="o">*</span> <span class="o">.</span><span class="mi">5</span><span class="p">)</span> <span class="o">/</span> <span class="n">s</span> <span class="o">+</span> <span class="n">bbox</span><span class="o">.</span><span class="n">top</span>
|
||||
<span class="k">return</span> <span class="p">((</span><span class="n">px</span><span class="p">,</span> <span class="n">py</span><span class="p">),</span> <span class="n">Point</span><span class="p">(</span><span class="n">px</span><span class="p">,</span> <span class="n">py</span><span class="p">))[</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">pt</span><span class="p">,</span> <span class="n">Point</span><span class="p">)]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>converts the given geometry to the view coordinates</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_geometry</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">geometries</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">geometry</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">geometry</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">geometry</span><span class="p">]</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="p">[]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>at first shift polygons
|
||||
geometries = []
|
||||
for geom in unshifted_geometries:
|
||||
geometries += self._shift_polygon(geom)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">geom</span> <span class="ow">in</span> <span class="n">geometries</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">Polygon</span><span class="p">):</span>
|
||||
<span class="n">res</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">project_polygon</span><span class="p">(</span><span class="n">geom</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">LineString</span><span class="p">):</span>
|
||||
<span class="n">rings</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">project_linear_ring</span><span class="p">(</span><span class="n">geom</span><span class="o">.</span><span class="n">coords</span><span class="p">)</span>
|
||||
<span class="n">res</span> <span class="o">+=</span> <span class="nb">map</span><span class="p">(</span><span class="n">LineString</span><span class="p">,</span> <span class="n">rings</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">Point</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_visible</span><span class="p">(</span><span class="n">geom</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">geom</span><span class="o">.</span><span class="n">y</span><span class="p">):</span>
|
||||
<span class="n">res</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">geom</span><span class="p">))</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'unknown geometry type </span><span class="si">%s</span><span class="s">'</span> <span class="o">%</span> <span class="n">geometry</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">Polygon</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">MultiPolygon</span><span class="p">(</span><span class="n">res</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">LineString</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">MultiLineString</span><span class="p">(</span><span class="n">res</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">LineString</span><span class="p">(</span><span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">MultiPoint</span><span class="p">(</span><span class="n">res</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_polygon</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">polygon</span><span class="p">):</span>
|
||||
<span class="n">ext</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">project_linear_ring</span><span class="p">(</span><span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">ext</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="n">pts_int</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">interior</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">interiors</span><span class="p">:</span>
|
||||
<span class="n">pts_int</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">project_linear_ring</span><span class="p">(</span><span class="n">interior</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="n">Polygon</span><span class="p">(</span><span class="n">ext</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pts_int</span><span class="p">)]</span>
|
||||
<span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">ext</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="p">[]</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'unhandled case: exterior is split into multiple rings'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_linear_ring</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ring</span><span class="p">):</span>
|
||||
<span class="n">points</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">ring</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="n">points</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">))</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="n">points</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'View(w=</span><span class="si">%f</span><span class="s">, h=</span><span class="si">%f</span><span class="s">, pad=</span><span class="si">%f</span><span class="s">, scale=</span><span class="si">%f</span><span class="s">, bbox=</span><span class="si">%s</span><span class="s">)'</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">width</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">height</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">padding</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scale</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">bbox</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
BIN
source/img/crop-bbox-01.png
Normal file
BIN
source/img/crop-bbox-01.png
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|
After Width: | Height: | Size: 78 KiB |
BIN
source/img/crop-polygon-1.png
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source/img/crop-polygon-1.png
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|
After Width: | Height: | Size: 15 KiB |
BIN
source/img/crop-polygon-minarea.png
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BIN
source/img/crop-polygon-minarea.png
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|
After Width: | Height: | Size: 28 KiB |
BIN
source/img/crop-polygon.png
Normal file
BIN
source/img/crop-polygon.png
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Binary file not shown.
|
After Width: | Height: | Size: 78 KiB |
BIN
source/img/join.png
Normal file
BIN
source/img/join.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 34 KiB |
BIN
source/img/logo.png
Normal file
BIN
source/img/logo.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 15 KiB |
BIN
source/img/simplify.png
Normal file
BIN
source/img/simplify.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 68 KiB |
326
source/kartograph.html
Normal file
326
source/kartograph.html
Normal file
@@ -0,0 +1,326 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>kartograph.py</title>
|
||||
<link rel="stylesheet" href="pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>kartograph.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">options</span> <span class="kn">import</span> <span class="n">parse_options</span>
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span><span class="p">,</span> <span class="n">LineString</span><span class="p">,</span> <span class="n">MultiPolygon</span>
|
||||
<span class="kn">from</span> <span class="nn">errors</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
<span class="kn">from</span> <span class="nn">copy</span> <span class="kn">import</span> <span class="n">deepcopy</span>
|
||||
<span class="kn">from</span> <span class="nn">renderer</span> <span class="kn">import</span> <span class="n">SvgRenderer</span><span class="p">,</span> <span class="n">KmlRenderer</span>
|
||||
<span class="kn">from</span> <span class="nn">map</span> <span class="kn">import</span> <span class="n">Map</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<h2>Kartograph</h2>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="n">verbose</span> <span class="o">=</span> <span class="bp">False</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
<p>These renderers are currently available. See <a href="renderer/svg.html">renderer/svg.py</a> and renderer/kml.py
|
||||
for more details on those.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="n">_known_renderer</span> <span class="o">=</span> <span class="p">{</span>
|
||||
<span class="s">'svg'</span><span class="p">:</span> <span class="n">SvgRenderer</span><span class="p">,</span>
|
||||
<span class="s">'kml'</span><span class="p">:</span> <span class="n">KmlRenderer</span>
|
||||
<span class="p">}</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Kartograph</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">layerCache</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>Generates a the map and renders it using the specified output format.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">generate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">opts</span><span class="p">,</span> <span class="n">outfile</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="s">'svg'</span><span class="p">,</span> <span class="n">preview</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">preview</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">preview</span> <span class="o">=</span> <span class="n">outfile</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>Create a deep copy of the options dictionary so our changes will not be
|
||||
visible to the calling application.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">opts</span> <span class="o">=</span> <span class="n">deepcopy</span><span class="p">(</span><span class="n">opts</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>Parse the options dictionary. See options.py for more details.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">parse_options</span><span class="p">(</span><span class="n">opts</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>Create the map instance. It will do all the hard work for us, so you
|
||||
definitely should check out <a href="map.html">map.py</a> for all the fun stuff happending
|
||||
there..</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">_map</span> <span class="o">=</span> <span class="n">Map</span><span class="p">(</span><span class="n">opts</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">layerCache</span><span class="p">,</span> <span class="n">format</span><span class="o">=</span><span class="n">format</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
<p>Check if the format is handled by a renderer.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">format</span> <span class="o">=</span> <span class="n">format</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span>
|
||||
<span class="k">if</span> <span class="n">format</span> <span class="ow">in</span> <span class="n">_known_renderer</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
<p>Create a renderer instance and render the map.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">renderer</span> <span class="o">=</span> <span class="n">_known_renderer</span><span class="p">[</span><span class="n">format</span><span class="p">](</span><span class="n">_map</span><span class="p">)</span>
|
||||
<span class="n">renderer</span><span class="o">.</span><span class="n">render</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>If requested, we try to preview the created map now, which means that
|
||||
we open the created SVG file in Firefox or open the KML in Google Earth.
|
||||
Of course, preview modes are highly dependent on the operating system, but
|
||||
we don't care about that now.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">preview</span><span class="p">:</span>
|
||||
<span class="n">renderer</span><span class="o">.</span><span class="n">preview</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
<p>Write the map to a file or return the renderer instance.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">outfile</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">renderer</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">renderer</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">outfile</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'unknown format: </span><span class="si">%s</span><span class="s">'</span> <span class="o">%</span> <span class="n">format</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
<p>Here are some handy methods for debugging Kartograph. It will plot a given shapely
|
||||
geometry using matplotlib and descartes.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_plot_geometry</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="s">'#ffcccc'</span><span class="p">,</span> <span class="n">stroke</span><span class="o">=</span><span class="s">'#333333'</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">msg</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">matplotlib</span> <span class="kn">import</span> <span class="n">pyplot</span>
|
||||
<span class="kn">from</span> <span class="nn">matplotlib.figure</span> <span class="kn">import</span> <span class="n">SubplotParams</span>
|
||||
<span class="kn">from</span> <span class="nn">descartes</span> <span class="kn">import</span> <span class="n">PolygonPatch</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="p">(</span><span class="n">Polygon</span><span class="p">,</span> <span class="n">MultiPolygon</span><span class="p">)):</span>
|
||||
<span class="n">b</span> <span class="o">=</span> <span class="n">geom</span><span class="o">.</span><span class="n">bounds</span>
|
||||
<span class="n">geoms</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">geom</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">geom</span><span class="p">]</span>
|
||||
<span class="n">w</span><span class="p">,</span> <span class="n">h</span> <span class="o">=</span> <span class="p">(</span><span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">-</span> <span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span> <span class="o">-</span> <span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="n">ratio</span> <span class="o">=</span> <span class="n">w</span> <span class="o">/</span> <span class="n">h</span>
|
||||
<span class="n">pad</span> <span class="o">=</span> <span class="mf">0.15</span>
|
||||
<span class="n">fig</span> <span class="o">=</span> <span class="n">pyplot</span><span class="o">.</span><span class="n">figure</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span> <span class="o">/</span> <span class="n">ratio</span><span class="p">),</span> <span class="n">dpi</span><span class="o">=</span><span class="mi">110</span><span class="p">,</span> <span class="n">subplotpars</span><span class="o">=</span><span class="n">SubplotParams</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="n">pad</span><span class="p">,</span> <span class="n">bottom</span><span class="o">=</span><span class="n">pad</span><span class="p">,</span> <span class="n">top</span><span class="o">=</span><span class="mi">1</span> <span class="o">-</span> <span class="n">pad</span><span class="p">,</span> <span class="n">right</span><span class="o">=</span><span class="mi">1</span> <span class="o">-</span> <span class="n">pad</span><span class="p">))</span>
|
||||
<span class="n">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">add_subplot</span><span class="p">(</span><span class="mi">111</span><span class="p">,</span> <span class="n">aspect</span><span class="o">=</span><span class="s">'equal'</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">geom</span> <span class="ow">in</span> <span class="n">geoms</span><span class="p">:</span>
|
||||
<span class="n">patch1</span> <span class="o">=</span> <span class="n">PolygonPatch</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">linewidth</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">fc</span><span class="o">=</span><span class="n">fill</span><span class="p">,</span> <span class="n">ec</span><span class="o">=</span><span class="n">stroke</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="n">alpha</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">add_patch</span><span class="p">(</span><span class="n">patch1</span><span class="p">)</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">-</span> <span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">*</span> <span class="mf">0.03</span> <span class="c"># some padding</span>
|
||||
<span class="n">pyplot</span><span class="o">.</span><span class="n">axis</span><span class="p">([</span><span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">-</span> <span class="n">p</span><span class="p">,</span> <span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">+</span> <span class="n">p</span><span class="p">,</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span> <span class="o">+</span> <span class="n">p</span><span class="p">,</span> <span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="n">p</span><span class="p">])</span>
|
||||
<span class="n">pyplot</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">msg</span><span class="p">:</span>
|
||||
<span class="n">fig</span><span class="o">.</span><span class="n">suptitle</span><span class="p">(</span><span class="n">msg</span><span class="p">,</span> <span class="n">y</span><span class="o">=</span><span class="mf">0.04</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="mi">9</span><span class="p">)</span>
|
||||
<span class="n">pyplot</span><span class="o">.</span><span class="n">show</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_plot_lines</span><span class="p">(</span><span class="n">lines</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">matplotlib</span> <span class="kn">import</span> <span class="n">pyplot</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">plot_line</span><span class="p">(</span><span class="n">ax</span><span class="p">,</span> <span class="n">line</span><span class="p">):</span>
|
||||
<span class="n">filtered</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">line</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">pt</span><span class="o">.</span><span class="n">deleted</span><span class="p">:</span>
|
||||
<span class="n">filtered</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">filtered</span><span class="p">)</span> <span class="o"><</span> <span class="mi">2</span><span class="p">:</span>
|
||||
<span class="k">return</span>
|
||||
<span class="n">ob</span> <span class="o">=</span> <span class="n">LineString</span><span class="p">(</span><span class="n">line</span><span class="p">)</span>
|
||||
<span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">=</span> <span class="n">ob</span><span class="o">.</span><span class="n">xy</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">plot</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="s">'-'</span><span class="p">,</span> <span class="n">color</span><span class="o">=</span><span class="s">'#333333'</span><span class="p">,</span> <span class="n">linewidth</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">solid_capstyle</span><span class="o">=</span><span class="s">'round'</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
|
||||
|
||||
<span class="n">fig</span> <span class="o">=</span> <span class="n">pyplot</span><span class="o">.</span><span class="n">figure</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">4</span><span class="p">,</span> <span class="mf">5.5</span><span class="p">),</span> <span class="n">dpi</span><span class="o">=</span><span class="mi">90</span><span class="p">,</span> <span class="n">subplotpars</span><span class="o">=</span><span class="n">SubplotParams</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">bottom</span><span class="o">=</span><span class="mf">0.065</span><span class="p">,</span> <span class="n">top</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">right</span><span class="o">=</span><span class="mi">1</span><span class="p">))</span>
|
||||
<span class="n">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">add_subplot</span><span class="p">(</span><span class="mi">111</span><span class="p">,</span> <span class="n">aspect</span><span class="o">=</span><span class="s">'equal'</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">lines</span><span class="p">:</span>
|
||||
<span class="n">plot_line</span><span class="p">(</span><span class="n">ax</span><span class="p">,</span> <span class="n">line</span><span class="p">)</span>
|
||||
<span class="n">pyplot</span><span class="o">.</span><span class="n">grid</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">yaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">set_frame_on</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">ax</span><span class="p">,</span> <span class="n">fig</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_debug_show_features</span><span class="p">(</span><span class="n">features</span><span class="p">,</span> <span class="n">message</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">descartes</span> <span class="kn">import</span> <span class="n">PolygonPatch</span>
|
||||
<span class="kn">from</span> <span class="nn">matplotlib</span> <span class="kn">import</span> <span class="n">pyplot</span>
|
||||
<span class="kn">from</span> <span class="nn">matplotlib.figure</span> <span class="kn">import</span> <span class="n">SubplotParams</span>
|
||||
|
||||
<span class="n">fig</span> <span class="o">=</span> <span class="n">pyplot</span><span class="o">.</span><span class="n">figure</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">figsize</span><span class="o">=</span><span class="p">(</span><span class="mi">9</span><span class="p">,</span> <span class="mf">5.5</span><span class="p">),</span> <span class="n">dpi</span><span class="o">=</span><span class="mi">110</span><span class="p">,</span> <span class="n">subplotpars</span><span class="o">=</span><span class="n">SubplotParams</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">bottom</span><span class="o">=</span><span class="mf">0.065</span><span class="p">,</span> <span class="n">top</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">right</span><span class="o">=</span><span class="mi">1</span><span class="p">))</span>
|
||||
<span class="n">ax</span> <span class="o">=</span> <span class="n">fig</span><span class="o">.</span><span class="n">add_subplot</span><span class="p">(</span><span class="mi">111</span><span class="p">,</span> <span class="n">aspect</span><span class="o">=</span><span class="s">'equal'</span><span class="p">)</span>
|
||||
<span class="n">b</span> <span class="o">=</span> <span class="p">(</span><span class="mi">100000</span><span class="p">,</span> <span class="mi">100000</span><span class="p">,</span> <span class="o">-</span><span class="mi">100000</span><span class="p">,</span> <span class="o">-</span><span class="mi">100000</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">feat</span> <span class="ow">in</span> <span class="n">features</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">feat</span><span class="o">.</span><span class="n">geom</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="n">c</span> <span class="o">=</span> <span class="n">feat</span><span class="o">.</span><span class="n">geom</span><span class="o">.</span><span class="n">bounds</span>
|
||||
<span class="n">b</span> <span class="o">=</span> <span class="p">(</span><span class="nb">min</span><span class="p">(</span><span class="n">c</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">]),</span> <span class="nb">min</span><span class="p">(</span><span class="n">c</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">]),</span> <span class="nb">max</span><span class="p">(</span><span class="n">c</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]),</span> <span class="nb">max</span><span class="p">(</span><span class="n">c</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">]))</span>
|
||||
<span class="n">geoms</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">feat</span><span class="o">.</span><span class="n">geom</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">feat</span><span class="o">.</span><span class="n">geom</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">feat</span><span class="o">.</span><span class="n">geom</span><span class="p">]</span>
|
||||
<span class="k">for</span> <span class="n">geom</span> <span class="ow">in</span> <span class="n">geoms</span><span class="p">:</span>
|
||||
<span class="n">patch1</span> <span class="o">=</span> <span class="n">PolygonPatch</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">linewidth</span><span class="o">=</span><span class="mf">0.25</span><span class="p">,</span> <span class="n">fc</span><span class="o">=</span><span class="s">'#ddcccc'</span><span class="p">,</span> <span class="n">ec</span><span class="o">=</span><span class="s">'#000000'</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.75</span><span class="p">,</span> <span class="n">zorder</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">add_patch</span><span class="p">(</span><span class="n">patch1</span><span class="p">)</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="p">(</span><span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">-</span> <span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">*</span> <span class="mf">0.05</span> <span class="c"># some padding</span>
|
||||
<span class="n">pyplot</span><span class="o">.</span><span class="n">axis</span><span class="p">([</span><span class="n">b</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">-</span> <span class="n">p</span><span class="p">,</span> <span class="n">b</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">+</span> <span class="n">p</span><span class="p">,</span> <span class="n">b</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span> <span class="n">b</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="n">p</span><span class="p">])</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">xaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">yaxis</span><span class="o">.</span><span class="n">set_visible</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
|
||||
<span class="n">ax</span><span class="o">.</span><span class="n">set_frame_on</span><span class="p">(</span><span class="bp">True</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">message</span><span class="p">:</span>
|
||||
<span class="n">fig</span><span class="o">.</span><span class="n">suptitle</span><span class="p">(</span><span class="n">message</span><span class="p">,</span> <span class="n">y</span><span class="o">=</span><span class="mf">0.04</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="mi">9</span><span class="p">)</span>
|
||||
<span class="n">pyplot</span><span class="o">.</span><span class="n">show</span><span class="p">()</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
68
source/layersource/__init__.html
Normal file
68
source/layersource/__init__.html
Normal file
@@ -0,0 +1,68 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>__init__.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>__init__.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>as of version 2.0 kartograph supports multiple import formats</p>
|
||||
<ul>
|
||||
<li>Shapefile</li>
|
||||
<li>KML ? (only polygons and polylines)</li>
|
||||
<li>GeoJSON ?</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">'LayerSource'</span><span class="p">,</span> <span class="s">'ShapefileLayer'</span><span class="p">,</span> <span class="s">'GraticuleLayer'</span><span class="p">]</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">shplayer</span> <span class="kn">import</span> <span class="n">ShapefileLayer</span>
|
||||
<span class="kn">from</span> <span class="nn">layersource</span> <span class="kn">import</span> <span class="n">LayerSource</span>
|
||||
<span class="kn">from</span> <span class="nn">special</span> <span class="kn">import</span> <span class="n">GraticuleLayer</span><span class="p">,</span> <span class="n">SeaLayer</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.errors</span> <span class="kn">import</span> <span class="o">*</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">handle_layer_source</span><span class="p">(</span><span class="n">layer</span><span class="p">,</span> <span class="n">cache</span><span class="o">=</span><span class="p">{}):</span>
|
||||
<span class="k">if</span> <span class="s">'src'</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">src</span> <span class="o">=</span> <span class="n">layer</span><span class="p">[</span><span class="s">'src'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">src</span> <span class="ow">in</span> <span class="n">cache</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">cache</span><span class="p">[</span><span class="n">src</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">src</span><span class="p">[</span><span class="o">-</span><span class="mi">4</span><span class="p">:]</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="s">".shp"</span><span class="p">:</span> <span class="c"># shapefile layer</span>
|
||||
<span class="n">src</span> <span class="o">=</span> <span class="n">ShapefileLayer</span><span class="p">(</span><span class="n">src</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="n">LayerSource</span><span class="p">):</span>
|
||||
<span class="n">cache</span><span class="p">[</span><span class="n">layer</span><span class="p">[</span><span class="s">'src'</span><span class="p">]]</span> <span class="o">=</span> <span class="n">src</span>
|
||||
<span class="k">return</span> <span class="n">src</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographLayerSourceError</span><span class="p">(</span><span class="s">'don</span><span class="se">\'</span><span class="s">t know how to handle "'</span> <span class="o">+</span> <span class="n">src</span> <span class="o">+</span> <span class="s">'"'</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="s">'special'</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">layer</span><span class="p">[</span><span class="s">'special'</span><span class="p">]</span> <span class="o">==</span> <span class="s">'graticule'</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">GraticuleLayer</span><span class="p">()</span>
|
||||
<span class="k">elif</span> <span class="n">layer</span><span class="p">[</span><span class="s">'special'</span><span class="p">]</span> <span class="o">==</span> <span class="s">'sea'</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">SeaLayer</span><span class="p">()</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
55
source/layersource/layersource.html
Normal file
55
source/layersource/layersource.html
Normal file
@@ -0,0 +1,55 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>layersource.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>layersource.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>base class for layer source data providers (e.g. shapefiles)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">LayerSource</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">get_features</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attr</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">filter</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">bbox</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
2669
source/layersource/shapefile.html
Normal file
2669
source/layersource/shapefile.html
Normal file
File diff suppressed because it is too large
Load Diff
410
source/layersource/shplayer.html
Normal file
410
source/layersource/shplayer.html
Normal file
@@ -0,0 +1,410 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>shplayer.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>shplayer.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">layersource</span> <span class="kn">import</span> <span class="n">LayerSource</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.errors</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.geometry</span> <span class="kn">import</span> <span class="n">BBox</span><span class="p">,</span> <span class="n">create_feature</span>
|
||||
|
||||
<span class="n">verbose</span> <span class="o">=</span> <span class="bp">True</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>this class handles shapefile layers</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">ShapefileLayer</span><span class="p">(</span><span class="n">LayerSource</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>initialize shapefile reader</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">src</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">import</span> <span class="nn">shapefile</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="nb">unicode</span><span class="p">):</span>
|
||||
<span class="n">src</span> <span class="o">=</span> <span class="n">src</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s">'ascii'</span><span class="p">,</span> <span class="s">'ignore'</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">shpSrc</span> <span class="o">=</span> <span class="n">src</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">sr</span> <span class="o">=</span> <span class="n">shapefile</span><span class="o">.</span><span class="n">Reader</span><span class="p">(</span><span class="n">src</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">recs</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">shapes</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">load_records</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>load shapefile records into memory. note that only the records are loaded and not the shapes.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">load_records</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">recs</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sr</span><span class="o">.</span><span class="n">records</span><span class="p">()</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">attributes</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">a</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">sr</span><span class="o">.</span><span class="n">fields</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">attributes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">a</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
|
||||
<span class="n">i</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">attrIndex</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">attributes</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">attrIndex</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span> <span class="o">=</span> <span class="n">i</span>
|
||||
<span class="n">i</span> <span class="o">+=</span> <span class="mi">1</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>returns a shape of this shapefile. if requested for the first time, the shape is loaded from shapefile (slow)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">get_shape</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">i</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">i</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">shapes</span><span class="p">:</span> <span class="c"># check cache</span>
|
||||
<span class="n">shp</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">shapes</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="k">else</span><span class="p">:</span> <span class="c"># load shape from shapefile</span>
|
||||
<span class="n">shp</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">shapes</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sr</span><span class="o">.</span><span class="n">shapeRecord</span><span class="p">(</span><span class="n">i</span><span class="p">)</span><span class="o">.</span><span class="n">shape</span>
|
||||
<span class="k">return</span> <span class="n">shp</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>returns a list of features matching to the attr -> value pair</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">get_features</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attr</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="nb">filter</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">bbox</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">verbose</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">ignore_holes</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">charset</span><span class="o">=</span><span class="s">'utf-8'</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">res</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">try_encodings</span> <span class="o">=</span> <span class="p">(</span><span class="s">'utf-8'</span><span class="p">,</span> <span class="s">'latin-1'</span><span class="p">,</span> <span class="s">'iso-8859-2'</span><span class="p">)</span>
|
||||
<span class="n">tried_encodings</span> <span class="o">=</span> <span class="p">[</span><span class="n">charset</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">bbox</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span> <span class="ow">and</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">bbox</span><span class="p">,</span> <span class="n">BBox</span><span class="p">):</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">(</span><span class="n">bbox</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">-</span> <span class="n">bbox</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">bbox</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span> <span class="o">-</span> <span class="n">bbox</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">bbox</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">bbox</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="n">ignored</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">recs</span><span class="p">)):</span>
|
||||
<span class="n">drec</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">attributes</span><span class="p">)):</span>
|
||||
<span class="n">drec</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">attributes</span><span class="p">[</span><span class="n">j</span><span class="p">]]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">recs</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="n">j</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="nb">filter</span> <span class="ow">is</span> <span class="bp">None</span> <span class="ow">or</span> <span class="nb">filter</span><span class="p">(</span><span class="n">drec</span><span class="p">):</span>
|
||||
<span class="n">props</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">attributes</span><span class="p">)):</span>
|
||||
<span class="n">val</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">recs</span><span class="p">[</span><span class="n">i</span><span class="p">][</span><span class="n">j</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">val</span> <span class="o">=</span> <span class="n">val</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="n">charset</span><span class="p">)</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">'warning: could not decode "</span><span class="si">%s</span><span class="s">" to </span><span class="si">%s</span><span class="s">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">charset</span><span class="p">)</span>
|
||||
<span class="n">next_guess</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">for</span> <span class="n">enc</span> <span class="ow">in</span> <span class="n">try_encodings</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">enc</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">tried_encodings</span><span class="p">:</span>
|
||||
<span class="n">next_guess</span> <span class="o">=</span> <span class="n">enc</span>
|
||||
<span class="n">tried_encodings</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">enc</span><span class="p">)</span>
|
||||
<span class="k">break</span>
|
||||
<span class="k">if</span> <span class="n">next_guess</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">'trying </span><span class="si">%s</span><span class="s"> now..'</span> <span class="o">%</span> <span class="n">next_guess</span>
|
||||
<span class="n">charset</span> <span class="o">=</span> <span class="n">next_guess</span>
|
||||
<span class="n">j</span> <span class="o">-=</span> <span class="mi">1</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'having problems to decode the input data "</span><span class="si">%s</span><span class="s">"'</span> <span class="o">%</span> <span class="n">val</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="nb">unicode</span><span class="p">)):</span>
|
||||
<span class="n">val</span> <span class="o">=</span> <span class="n">val</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span>
|
||||
<span class="n">props</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">attributes</span><span class="p">[</span><span class="n">j</span><span class="p">]]</span> <span class="o">=</span> <span class="n">val</span>
|
||||
|
||||
<span class="n">shp</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_shape</span><span class="p">(</span><span class="n">i</span><span class="p">)</span>
|
||||
|
||||
<span class="n">geom</span> <span class="o">=</span> <span class="n">shape2geometry</span><span class="p">(</span><span class="n">shp</span><span class="p">,</span> <span class="n">ignore_holes</span><span class="o">=</span><span class="n">ignore_holes</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="n">min_area</span><span class="p">,</span> <span class="n">bbox</span><span class="o">=</span><span class="n">bbox</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">geom</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">ignored</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="k">continue</span>
|
||||
|
||||
<span class="n">feature</span> <span class="o">=</span> <span class="n">create_feature</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">props</span><span class="p">)</span>
|
||||
<span class="n">res</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">feature</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">bbox</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span> <span class="ow">and</span> <span class="n">ignored</span> <span class="o">></span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">verbose</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">"-ignoring </span><span class="si">%d</span><span class="s"> shapes (not in bounds </span><span class="si">%s</span><span class="s"> )"</span> <span class="o">%</span> <span class="p">(</span><span class="n">ignored</span><span class="p">,</span> <span class="n">bbox</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">res</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">shape2geometry</span><span class="p">(</span><span class="n">shp</span><span class="p">,</span> <span class="n">ignore_holes</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">bbox</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="n">bbox</span><span class="p">:</span>
|
||||
<span class="n">sbbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="n">shp</span><span class="o">.</span><span class="n">bbox</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">top</span><span class="o">=</span><span class="n">shp</span><span class="o">.</span><span class="n">bbox</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">width</span><span class="o">=</span><span class="n">shp</span><span class="o">.</span><span class="n">bbox</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">-</span> <span class="n">shp</span><span class="o">.</span><span class="n">bbox</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">height</span><span class="o">=</span><span class="n">shp</span><span class="o">.</span><span class="n">bbox</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span> <span class="o">-</span> <span class="n">shp</span><span class="o">.</span><span class="n">bbox</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">bbox</span><span class="o">.</span><span class="n">intersects</span><span class="p">(</span><span class="n">sbbox</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>ignore the shape if it's not within the bbox</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="bp">None</span>
|
||||
|
||||
<span class="k">if</span> <span class="n">shp</span><span class="o">.</span><span class="n">shapeType</span> <span class="ow">in</span> <span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">15</span><span class="p">):</span> <span class="c"># multi-polygon</span>
|
||||
<span class="n">geom</span> <span class="o">=</span> <span class="n">shape2polygon</span><span class="p">(</span><span class="n">shp</span><span class="p">,</span> <span class="n">ignore_holes</span><span class="o">=</span><span class="n">ignore_holes</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="n">min_area</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="n">shp</span><span class="o">.</span><span class="n">shapeType</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span> <span class="c"># line</span>
|
||||
<span class="n">geom</span> <span class="o">=</span> <span class="n">points2line</span><span class="p">(</span><span class="n">shp</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'unknown shape type (</span><span class="si">%d</span><span class="s">) in shapefile </span><span class="si">%s</span><span class="s">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">shp</span><span class="o">.</span><span class="n">shapeType</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">shpSrc</span><span class="p">))</span>
|
||||
<span class="k">return</span> <span class="n">geom</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
<p>converts a shapefile polygon to geometry.MultiPolygon</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">shape2polygon</span><span class="p">(</span><span class="n">shp</span><span class="p">,</span> <span class="n">ignore_holes</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
<p>from kartograph.geometry import MultiPolygon</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span><span class="p">,</span> <span class="n">MultiPolygon</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.geometry.utils</span> <span class="kn">import</span> <span class="n">is_clockwise</span>
|
||||
<span class="n">parts</span> <span class="o">=</span> <span class="n">shp</span><span class="o">.</span><span class="n">parts</span><span class="p">[:]</span>
|
||||
<span class="n">parts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">shp</span><span class="o">.</span><span class="n">points</span><span class="p">))</span>
|
||||
<span class="n">exteriors</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">holes</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="n">shp</span><span class="o">.</span><span class="n">points</span><span class="p">[</span><span class="n">parts</span><span class="p">[</span><span class="n">j</span><span class="p">]:</span><span class="n">parts</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]]</span>
|
||||
<span class="k">if</span> <span class="n">shp</span><span class="o">.</span><span class="n">shapeType</span> <span class="o">==</span> <span class="mi">15</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
<p>remove z-coordinate from PolygonZ contours (not supported)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)):</span>
|
||||
<span class="n">pts</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[</span><span class="n">k</span><span class="p">][:</span><span class="mi">2</span><span class="p">]</span>
|
||||
<span class="n">cw</span> <span class="o">=</span> <span class="n">is_clockwise</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">cw</span><span class="p">:</span>
|
||||
<span class="n">exteriors</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">holes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">ignore_holes</span><span class="p">:</span>
|
||||
<span class="n">holes</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">exteriors</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">Polygon</span><span class="p">(</span><span class="n">exteriors</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">holes</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">exteriors</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
<p>use multipolygon, but we need to assign the holes to the right
|
||||
exteriors</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">from</span> <span class="nn">kartograph.geometry</span> <span class="kn">import</span> <span class="n">BBox</span>
|
||||
<span class="n">used_holes</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span>
|
||||
<span class="n">polygons</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">ext</span> <span class="ow">in</span> <span class="n">exteriors</span><span class="p">:</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">()</span>
|
||||
<span class="n">my_holes</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">ext</span><span class="p">:</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">h</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">holes</span><span class="p">)):</span>
|
||||
<span class="k">if</span> <span class="n">h</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">used_holes</span><span class="p">:</span>
|
||||
<span class="n">hole</span> <span class="o">=</span> <span class="n">holes</span><span class="p">[</span><span class="n">h</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">bbox</span><span class="o">.</span><span class="n">check_point</span><span class="p">(</span><span class="n">hole</span><span class="p">[</span><span class="mi">0</span><span class="p">]):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
<p>this is a very weak test but it should be sufficient</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">used_holes</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">h</span><span class="p">)</span>
|
||||
<span class="n">my_holes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">hole</span><span class="p">)</span>
|
||||
<span class="n">polygons</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">Polygon</span><span class="p">(</span><span class="n">ext</span><span class="p">,</span> <span class="n">my_holes</span><span class="p">))</span>
|
||||
<span class="k">if</span> <span class="n">min_area</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
<p>compute maximum area</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">max_area</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="n">poly</span> <span class="ow">in</span> <span class="n">polygons</span><span class="p">:</span>
|
||||
<span class="n">max_area</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">max_area</span><span class="p">,</span> <span class="n">poly</span><span class="o">.</span><span class="n">area</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
<p>filter out polygons that are below min_area * max_area</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">polygons</span> <span class="o">=</span> <span class="p">[</span><span class="n">poly</span> <span class="k">for</span> <span class="n">poly</span> <span class="ow">in</span> <span class="n">polygons</span> <span class="k">if</span> <span class="n">poly</span><span class="o">.</span><span class="n">area</span> <span class="o">>=</span> <span class="n">min_area</span> <span class="o">*</span> <span class="n">max_area</span><span class="p">]</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">MultiPolygon</span><span class="p">(</span><span class="n">polygons</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'shapefile import failed - no outer polygon found'</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">poly</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
<p>converts a shapefile line to geometry.Line</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">points2line</span><span class="p">(</span><span class="n">shp</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">from</span> <span class="nn">kartograph.geometry</span> <span class="kn">import</span> <span class="n">PolyLine</span>
|
||||
<span class="n">parts</span> <span class="o">=</span> <span class="n">shp</span><span class="o">.</span><span class="n">parts</span><span class="p">[:]</span>
|
||||
<span class="n">parts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">shp</span><span class="o">.</span><span class="n">points</span><span class="p">))</span>
|
||||
<span class="n">lines</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="n">shp</span><span class="o">.</span><span class="n">points</span><span class="p">[</span><span class="n">parts</span><span class="p">[</span><span class="n">j</span><span class="p">]:</span><span class="n">parts</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]]</span>
|
||||
<span class="n">lines</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">PolyLine</span><span class="p">(</span><span class="n">lines</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
1104
source/map.html
Normal file
1104
source/map.html
Normal file
File diff suppressed because it is too large
Load Diff
329
source/maplayer.html
Normal file
329
source/maplayer.html
Normal file
@@ -0,0 +1,329 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>maplayer.py</title>
|
||||
<link rel="stylesheet" href="pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>maplayer.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">layersource</span> <span class="kn">import</span> <span class="n">handle_layer_source</span>
|
||||
<span class="kn">from</span> <span class="nn">filter</span> <span class="kn">import</span> <span class="n">filter_record</span>
|
||||
|
||||
|
||||
<span class="n">_verbose</span> <span class="o">=</span> <span class="bp">False</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<h2>MapLayer</h2>
|
||||
<p>Represents a layer in the map which contains a list of map features</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">MapLayer</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">id</span><span class="p">,</span> <span class="n">options</span><span class="p">,</span> <span class="n">_map</span><span class="p">,</span> <span class="n">cache</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>Store layer properties as instance properties</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">=</span> <span class="nb">id</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">options</span> <span class="o">=</span> <span class="n">options</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">map</span> <span class="o">=</span> <span class="n">_map</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">cache</span> <span class="o">=</span> <span class="n">cache</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>Make sure that the layer id is unique within the map.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">while</span> <span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">layersById</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">id</span> <span class="o">+=</span> <span class="s">"_"</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>Instantiate the layer source which will generate features from the source
|
||||
geo data such as shapefiles or virtual sources such as graticule lines.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">source</span> <span class="o">=</span> <span class="n">handle_layer_source</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">options</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cache</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<h3>get_features()</h3>
|
||||
<p>Returns a list of projected and filtered features of a layer.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">get_features</span><span class="p">(</span><span class="n">layer</span><span class="p">,</span> <span class="nb">filter</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span> <span class="n">min_area</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">opts</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">options</span>
|
||||
<span class="n">is_projected</span> <span class="o">=</span> <span class="bp">False</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>Let's see if theres a better bounding box than this..</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">bbox</span> <span class="o">=</span> <span class="p">[</span><span class="o">-</span><span class="mi">180</span><span class="p">,</span> <span class="o">-</span><span class="mi">90</span><span class="p">,</span> <span class="mi">180</span><span class="p">,</span> <span class="mi">90</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
<p>Use the clipping mode defined in the map configuration</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'mode'</span><span class="p">]</span> <span class="o">==</span> <span class="s">"bbox"</span><span class="p">:</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'data'</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
<p>The 'crop' property overrides the clipping settings</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="s">'crop'</span> <span class="ow">in</span> <span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">]</span> <span class="ow">and</span> <span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'crop'</span><span class="p">]:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>If crop is set to "auto", which is the default behaviour, Kartograph
|
||||
will use the actual bounding geometry to compute the bounding box</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'crop'</span><span class="p">]</span> <span class="o">==</span> <span class="s">"auto"</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">_unprojected_bounds</span><span class="p">:</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">_unprojected_bounds</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">inflate</span><span class="p">(</span><span class="n">inflate</span><span class="o">=</span><span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'padding'</span><span class="p">]</span> <span class="o">*</span> <span class="mi">2</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">'could not compute bounding box for auto-cropping'</span>
|
||||
<span class="k">else</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
<p>otherwise it will use the user defined bbox in the format
|
||||
[minLon, minLat, maxLon, maxLat]</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">bbox</span> <span class="o">=</span> <span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'crop'</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
<p>If the layer has the "src" property, it is a <strong>regular map layer</strong> source, which
|
||||
means that there's an exernal file that we load the geometry and meta data from.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="s">'src'</span> <span class="ow">in</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'filter'</span><span class="p">]</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
|
||||
<span class="nb">filter</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="nb">filter</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">rec</span><span class="p">:</span> <span class="n">filter_record</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'filter'</span><span class="p">],</span> <span class="n">rec</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
<p>Now we ask the layer source to generate the features that will be displayed
|
||||
in the map.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">features</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">get_features</span><span class="p">(</span>
|
||||
<span class="nb">filter</span><span class="o">=</span><span class="nb">filter</span><span class="p">,</span>
|
||||
<span class="n">bbox</span><span class="o">=</span><span class="n">bbox</span><span class="p">,</span>
|
||||
<span class="n">ignore_holes</span><span class="o">=</span><span class="s">'ignore-holes'</span> <span class="ow">in</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span> <span class="ow">and</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'ignore-holes'</span><span class="p">],</span>
|
||||
<span class="n">charset</span><span class="o">=</span><span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'charset'</span><span class="p">]</span>
|
||||
<span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">_verbose</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">'loaded </span><span class="si">%d</span><span class="s"> features from shapefile </span><span class="si">%s</span><span class="s">'</span> <span class="o">%</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">features</span><span class="p">),</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'src'</span><span class="p">])</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
<p>In contrast to regular layers, the geometry for <strong>special (or virtual) layers</strong> is generated
|
||||
by Kartograph itself, based on some properties defined in the layer config.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">elif</span> <span class="s">'special'</span> <span class="ow">in</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
<p>The graticule layer generates line features for longitudes and latitudes</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'special'</span><span class="p">]</span> <span class="o">==</span> <span class="s">"graticule"</span><span class="p">:</span>
|
||||
<span class="n">lats</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'latitudes'</span><span class="p">]</span>
|
||||
<span class="n">lons</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'longitudes'</span><span class="p">]</span>
|
||||
<span class="n">features</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">get_features</span><span class="p">(</span><span class="n">lats</span><span class="p">,</span> <span class="n">lons</span><span class="p">,</span> <span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">proj</span><span class="p">,</span> <span class="n">bbox</span><span class="o">=</span><span class="n">bbox</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
<p>The "sea" layer generates a MultiPolygon that represents the entire boundary
|
||||
of the map. Especially useful for non-cylindrical map projections.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">elif</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'special'</span><span class="p">]</span> <span class="o">==</span> <span class="s">"sea"</span><span class="p">:</span>
|
||||
<span class="n">features</span> <span class="o">=</span> <span class="n">layer</span><span class="o">.</span><span class="n">source</span><span class="o">.</span><span class="n">get_features</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">proj</span><span class="p">)</span>
|
||||
<span class="n">is_projected</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">feature</span> <span class="ow">in</span> <span class="n">features</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
<p>If the features are not projected yet, we project them now.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="ow">not</span> <span class="n">is_projected</span><span class="p">:</span>
|
||||
<span class="n">feature</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">proj</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
<p>Transform features to view coordinates.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">feature</span><span class="o">.</span><span class="n">project_view</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">view</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
<p>Remove features that don't intersect our clipping polygon</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">view_poly</span><span class="p">:</span>
|
||||
<span class="n">features</span> <span class="o">=</span> <span class="p">[</span><span class="n">feature</span> <span class="k">for</span> <span class="n">feature</span> <span class="ow">in</span> <span class="n">features</span>
|
||||
<span class="k">if</span> <span class="n">feature</span><span class="o">.</span><span class="n">geometry</span> <span class="ow">and</span> <span class="n">feature</span><span class="o">.</span><span class="n">geometry</span><span class="o">.</span><span class="n">intersects</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">view_poly</span><span class="p">)]</span>
|
||||
<span class="n">layer</span><span class="o">.</span><span class="n">features</span> <span class="o">=</span> <span class="n">features</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
499
source/options.html
Normal file
499
source/options.html
Normal file
@@ -0,0 +1,499 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>options.py</title>
|
||||
<link rel="stylesheet" href="pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>options.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>API 2.0
|
||||
helper methods for validating options dictionary</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nn">os.path</span><span class="o">,</span> <span class="nn">proj</span><span class="o">,</span> <span class="nn">errors</span>
|
||||
|
||||
|
||||
<span class="n">Error</span> <span class="o">=</span> <span class="n">errors</span><span class="o">.</span><span class="n">KartographOptionParseError</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">is_str</span><span class="p">(</span><span class="n">s</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="nb">unicode</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>check out that the option dict is filled correctly</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_options</span><span class="p">(</span><span class="n">opts</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>projection</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">parse_proj</span><span class="p">(</span><span class="n">opts</span><span class="p">)</span>
|
||||
<span class="n">parse_layers</span><span class="p">(</span><span class="n">opts</span><span class="p">)</span>
|
||||
<span class="n">parse_bounds</span><span class="p">(</span><span class="n">opts</span><span class="p">)</span>
|
||||
<span class="n">parse_export</span><span class="p">(</span><span class="n">opts</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>checks projections</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_proj</span><span class="p">(</span><span class="n">opts</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="s">'proj'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">opts</span><span class="p">:</span>
|
||||
<span class="n">opts</span><span class="p">[</span><span class="s">'proj'</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="n">prj</span> <span class="o">=</span> <span class="n">opts</span><span class="p">[</span><span class="s">'proj'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="s">'id'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">prj</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'bounds'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">opts</span><span class="p">:</span>
|
||||
<span class="n">prj</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'robinson'</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">prj</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'laea'</span>
|
||||
<span class="k">if</span> <span class="n">prj</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">proj</span><span class="o">.</span><span class="n">projections</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'unknown projection'</span><span class="p">)</span>
|
||||
<span class="n">prjClass</span> <span class="o">=</span> <span class="n">proj</span><span class="o">.</span><span class="n">projections</span><span class="p">[</span><span class="n">prj</span><span class="p">[</span><span class="s">'id'</span><span class="p">]]</span>
|
||||
<span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="n">prjClass</span><span class="o">.</span><span class="n">attributes</span><span class="p">():</span>
|
||||
<span class="k">if</span> <span class="n">attr</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">prj</span><span class="p">:</span>
|
||||
<span class="n">prj</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span> <span class="o">=</span> <span class="s">"auto"</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">prj</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span> <span class="o">!=</span> <span class="s">"auto"</span><span class="p">:</span>
|
||||
<span class="n">prj</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">prj</span><span class="p">[</span><span class="n">attr</span><span class="p">])</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layers</span><span class="p">(</span><span class="n">opts</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'layers'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">opts</span><span class="p">:</span>
|
||||
<span class="n">opts</span><span class="p">[</span><span class="s">'layers'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">l_id</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="n">g_id</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="n">s_id</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="n">layer</span> <span class="ow">in</span> <span class="n">opts</span><span class="p">[</span><span class="s">'layers'</span><span class="p">]:</span>
|
||||
<span class="k">if</span> <span class="s">'styles'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'styles'</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="k">if</span> <span class="s">'src'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span> <span class="ow">and</span> <span class="s">'special'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'you need to define the source for your layers'</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="s">'src'</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'src'</span><span class="p">]):</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'layer source not found: '</span> <span class="o">+</span> <span class="n">layer</span><span class="p">[</span><span class="s">'src'</span><span class="p">])</span>
|
||||
<span class="k">if</span> <span class="s">'id'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'layer_'</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">l_id</span><span class="p">)</span>
|
||||
<span class="n">l_id</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="k">if</span> <span class="s">'charset'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'charset'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'utf-8'</span>
|
||||
<span class="k">elif</span> <span class="s">'special'</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">layer</span><span class="p">[</span><span class="s">'special'</span><span class="p">]</span> <span class="o">==</span> <span class="s">'graticule'</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'id'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'graticule'</span>
|
||||
<span class="k">if</span> <span class="n">g_id</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="o">+=</span> <span class="s">'_'</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">g_id</span><span class="p">)</span>
|
||||
<span class="n">g_id</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="k">if</span> <span class="s">'fill'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">[</span><span class="s">'styles'</span><span class="p">]:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'styles'</span><span class="p">][</span><span class="s">'fill'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'None'</span>
|
||||
<span class="n">parse_layer_graticule</span><span class="p">(</span><span class="n">layer</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="n">layer</span><span class="p">[</span><span class="s">'special'</span><span class="p">]</span> <span class="o">==</span> <span class="s">'sea'</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'id'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'sea'</span>
|
||||
<span class="k">if</span> <span class="n">s_id</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span> <span class="o">+=</span> <span class="s">'_'</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">s_id</span><span class="p">)</span>
|
||||
<span class="n">s_id</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
|
||||
<span class="n">parse_layer_attributes</span><span class="p">(</span><span class="n">layer</span><span class="p">)</span>
|
||||
<span class="n">parse_layer_filter</span><span class="p">(</span><span class="n">layer</span><span class="p">)</span>
|
||||
<span class="n">parse_layer_join</span><span class="p">(</span><span class="n">layer</span><span class="p">)</span>
|
||||
<span class="n">parse_layer_simplify</span><span class="p">(</span><span class="n">layer</span><span class="p">)</span>
|
||||
<span class="n">parse_layer_subtract</span><span class="p">(</span><span class="n">layer</span><span class="p">)</span>
|
||||
<span class="n">parse_layer_cropping</span><span class="p">(</span><span class="n">layer</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layer_attributes</span><span class="p">(</span><span class="n">layer</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'attributes'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">return</span>
|
||||
<span class="n">attrs</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">]:</span>
|
||||
<span class="k">if</span> <span class="n">is_str</span><span class="p">(</span><span class="n">attr</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">],</span> <span class="nb">list</span><span class="p">):</span> <span class="c"># ["ISO_A3", "FIPS"]</span>
|
||||
<span class="n">attrs</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s">'src'</span><span class="p">:</span> <span class="n">attr</span><span class="p">,</span> <span class="s">'tgt'</span><span class="p">:</span> <span class="n">attr</span><span class="p">})</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">],</span> <span class="nb">dict</span><span class="p">):</span> <span class="c"># { "ISO_A3": "iso" }</span>
|
||||
<span class="n">attrs</span><span class="o">.</span><span class="n">append</span><span class="p">({</span><span class="s">'src'</span><span class="p">:</span> <span class="n">attr</span><span class="p">,</span> <span class="s">'tgt'</span><span class="p">:</span> <span class="n">layer</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">][</span><span class="n">attr</span><span class="p">]})</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">attr</span><span class="p">,</span> <span class="nb">dict</span><span class="p">)</span> <span class="ow">and</span> <span class="s">'src'</span> <span class="ow">in</span> <span class="n">attr</span> <span class="ow">and</span> <span class="s">'tgt'</span> <span class="ow">in</span> <span class="n">attr</span><span class="p">:</span>
|
||||
<span class="n">attrs</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">attr</span><span class="p">)</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">]</span> <span class="o">=</span> <span class="n">attrs</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layer_filter</span><span class="p">(</span><span class="n">layer</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'filter'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'filter'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">return</span>
|
||||
<span class="k">return</span> <span class="c"># todo: check valid filter syntax (recursivly, place code in filter.py)</span>
|
||||
<span class="nb">filter</span> <span class="o">=</span> <span class="n">layer</span><span class="p">[</span><span class="s">'filter'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="s">'type'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="nb">filter</span><span class="p">:</span>
|
||||
<span class="nb">filter</span><span class="p">[</span><span class="s">'type'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'include'</span>
|
||||
<span class="k">if</span> <span class="s">'attribute'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="nb">filter</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'layer filter must define an attribute to filter on'</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="s">'equals'</span> <span class="ow">in</span> <span class="nb">filter</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="nb">filter</span><span class="p">[</span><span class="s">'equals'</span><span class="p">],</span> <span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="nb">unicode</span><span class="p">,</span> <span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">)):</span>
|
||||
<span class="nb">filter</span><span class="p">[</span><span class="s">'equals'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="nb">filter</span><span class="p">[</span><span class="s">'equals'</span><span class="p">]]</span>
|
||||
<span class="k">elif</span> <span class="s">'greater-than'</span> <span class="ow">in</span> <span class="nb">filter</span><span class="p">:</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="nb">filter</span><span class="p">[</span><span class="s">'greater-than'</span><span class="p">]</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="nb">filter</span><span class="p">[</span><span class="s">'greater-than'</span><span class="p">])</span>
|
||||
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'could not convert filter value "greater-than" to float'</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="s">'less-than'</span> <span class="ow">in</span> <span class="nb">filter</span><span class="p">:</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="nb">filter</span><span class="p">[</span><span class="s">'less-than'</span><span class="p">]</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="nb">filter</span><span class="p">[</span><span class="s">'less-than'</span><span class="p">])</span>
|
||||
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'could not convert filter value "less-than" to float'</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'you must define either "equals", "greater-than" or "less-than" in the filter'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layer_join</span><span class="p">(</span><span class="n">layer</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'join'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'join'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">return</span>
|
||||
<span class="k">if</span> <span class="n">layer</span><span class="p">[</span><span class="s">'join'</span><span class="p">]</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
|
||||
<span class="k">return</span>
|
||||
|
||||
<span class="n">join</span> <span class="o">=</span> <span class="n">layer</span><span class="p">[</span><span class="s">'join'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="s">'group-by'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">join</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'missing attribute "group-by": you need to specify an attribute by which the features should be joined.'</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="s">'groups'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">join</span><span class="p">:</span>
|
||||
<span class="n">join</span><span class="p">[</span><span class="s">'groups'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="k">if</span> <span class="s">'group-as'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">join</span><span class="p">:</span>
|
||||
<span class="n">join</span><span class="p">[</span><span class="s">'group-as'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layer_simplify</span><span class="p">(</span><span class="n">layer</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'unify-precision'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'unify-precision'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="k">if</span> <span class="s">'simplify'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'simplify'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">return</span>
|
||||
<span class="k">if</span> <span class="n">layer</span><span class="p">[</span><span class="s">'simplify'</span><span class="p">]</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
|
||||
<span class="k">return</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'simplify'</span><span class="p">],</span> <span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="nb">unicode</span><span class="p">)):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>default to visvalingam-whyatt</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">layer</span><span class="p">[</span><span class="s">'simplify'</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span><span class="s">"method"</span><span class="p">:</span> <span class="s">"visvalingam-whyatt"</span><span class="p">,</span> <span class="s">"tolerance"</span><span class="p">:</span> <span class="nb">float</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'simplify'</span><span class="p">])}</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'simplify'</span><span class="p">][</span><span class="s">'tolerance'</span><span class="p">]</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'simplify'</span><span class="p">][</span><span class="s">'tolerance'</span><span class="p">])</span>
|
||||
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'could not convert simplification amount to float'</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="s">'filter-islands'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'filter-islands'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layer_subtract</span><span class="p">(</span><span class="n">layer</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'subtract-from'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'subtract-from'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">return</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'subtract-from'</span><span class="p">],</span> <span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="nb">unicode</span><span class="p">)):</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'subtract-from'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">layer</span><span class="p">[</span><span class="s">'subtract-from'</span><span class="p">]]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layer_cropping</span><span class="p">(</span><span class="n">layer</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'crop-to'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'crop-to'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">return</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_layer_graticule</span><span class="p">(</span><span class="n">layer</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'latitudes'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'latitudes'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'latitudes'</span><span class="p">],</span> <span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">)):</span>
|
||||
<span class="n">step</span> <span class="o">=</span> <span class="n">layer</span><span class="p">[</span><span class="s">'latitudes'</span><span class="p">]</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'latitudes'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">for</span> <span class="n">lat</span> <span class="ow">in</span> <span class="n">_xfrange</span><span class="p">(</span><span class="n">step</span><span class="p">,</span> <span class="mi">90</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'latitudes'</span><span class="p">]</span> <span class="o">+=</span> <span class="p">[</span><span class="n">lat</span><span class="p">,</span> <span class="o">-</span><span class="n">lat</span><span class="p">]</span>
|
||||
|
||||
<span class="k">if</span> <span class="s">'longitudes'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'longitudes'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">layer</span><span class="p">[</span><span class="s">'longitudes'</span><span class="p">],</span> <span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">)):</span>
|
||||
<span class="n">step</span> <span class="o">=</span> <span class="n">layer</span><span class="p">[</span><span class="s">'longitudes'</span><span class="p">]</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'longitudes'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">for</span> <span class="n">lon</span> <span class="ow">in</span> <span class="n">_xfrange</span><span class="p">(</span><span class="n">step</span><span class="p">,</span> <span class="mi">181</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="n">lon</span> <span class="o">==</span> <span class="mi">180</span><span class="p">:</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="p">[</span><span class="n">lon</span><span class="p">]</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="p">[</span><span class="n">lon</span><span class="p">,</span> <span class="o">-</span><span class="n">lon</span><span class="p">]</span>
|
||||
<span class="n">layer</span><span class="p">[</span><span class="s">'longitudes'</span><span class="p">]</span> <span class="o">+=</span> <span class="n">p</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_xfrange</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span>
|
||||
<span class="k">while</span> <span class="p">(</span><span class="n">step</span> <span class="o">></span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">start</span> <span class="o"><</span> <span class="n">stop</span><span class="p">)</span> <span class="ow">or</span> <span class="p">(</span><span class="n">step</span> <span class="o"><</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">start</span> <span class="o">></span> <span class="n">step</span><span class="p">):</span>
|
||||
<span class="k">yield</span> <span class="n">start</span>
|
||||
<span class="n">start</span> <span class="o">+=</span> <span class="n">step</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_bounds</span><span class="p">(</span><span class="n">opts</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">'bounds'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">opts</span><span class="p">:</span>
|
||||
<span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
<p>return</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">bounds</span> <span class="o">=</span> <span class="n">opts</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="s">'mode'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">bounds</span><span class="p">:</span>
|
||||
<span class="n">bounds</span><span class="p">[</span><span class="s">'mode'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'bbox'</span>
|
||||
|
||||
<span class="k">if</span> <span class="s">'data'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">bounds</span><span class="p">:</span>
|
||||
<span class="n">bounds</span><span class="p">[</span><span class="s">'data'</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="o">-</span><span class="mi">180</span><span class="p">,</span> <span class="o">-</span><span class="mi">90</span><span class="p">,</span> <span class="mi">180</span><span class="p">,</span> <span class="mi">90</span><span class="p">]</span>
|
||||
<span class="n">bounds</span><span class="p">[</span><span class="s">'mode'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'bbox'</span>
|
||||
|
||||
<span class="n">mode</span> <span class="o">=</span> <span class="n">bounds</span><span class="p">[</span><span class="s">'mode'</span><span class="p">]</span>
|
||||
<span class="n">data</span> <span class="o">=</span> <span class="n">bounds</span><span class="p">[</span><span class="s">'data'</span><span class="p">]</span>
|
||||
|
||||
<span class="k">if</span> <span class="s">'crop'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">bounds</span><span class="p">:</span>
|
||||
<span class="n">bounds</span><span class="p">[</span><span class="s">'crop'</span><span class="p">]</span> <span class="o">=</span> <span class="s">'auto'</span>
|
||||
|
||||
<span class="k">if</span> <span class="s">"padding"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">bounds</span><span class="p">:</span>
|
||||
<span class="n">bounds</span><span class="p">[</span><span class="s">"padding"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
|
||||
<span class="k">if</span> <span class="n">mode</span> <span class="o">==</span> <span class="s">"bbox"</span><span class="p">:</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="p">)</span> <span class="o">==</span> <span class="mi">4</span><span class="p">:</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">4</span><span class="p">):</span>
|
||||
<span class="n">data</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'bounds mode bbox requires array with exactly 4 values [lon0,lat0,lon1,lat]'</span><span class="p">)</span>
|
||||
<span class="k">except</span> <span class="n">Error</span><span class="p">:</span>
|
||||
<span class="k">raise</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'bounds mode bbox requires array with exactly 4 values [lon0,lat0,lon1,lat]'</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="n">mode</span> <span class="o">==</span> <span class="s">"points"</span><span class="p">:</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">data</span><span class="p">)):</span>
|
||||
<span class="n">pt</span> <span class="o">=</span> <span class="n">data</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
|
||||
<span class="n">pt</span> <span class="o">=</span> <span class="nb">map</span><span class="p">(</span><span class="nb">float</span><span class="p">,</span> <span class="n">pt</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'bounds mode points requires array with (lon,lat) tuples'</span><span class="p">)</span>
|
||||
<span class="k">except</span> <span class="n">Error</span><span class="p">:</span>
|
||||
<span class="k">raise</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'bounds mode points requires array with (lon,lat) tuples'</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="n">mode</span> <span class="ow">in</span> <span class="p">(</span><span class="s">"polygons"</span><span class="p">,</span> <span class="s">"polygon"</span><span class="p">):</span>
|
||||
<span class="n">bounds</span><span class="p">[</span><span class="s">'mode'</span><span class="p">]</span> <span class="o">=</span> <span class="n">mode</span> <span class="o">=</span> <span class="s">"polygons"</span>
|
||||
<span class="k">if</span> <span class="s">"layer"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">data</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">is_str</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="s">"layer"</span><span class="p">]):</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'you must specify a layer for bounds mode '</span> <span class="o">+</span> <span class="n">mode</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="s">"filter"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">data</span><span class="p">:</span>
|
||||
<span class="n">data</span><span class="p">[</span><span class="s">"filter"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">if</span> <span class="s">"attribute"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">data</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">is_str</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="s">"attribute"</span><span class="p">]):</span>
|
||||
<span class="n">data</span><span class="p">[</span><span class="s">"attribute"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="k">if</span> <span class="s">"values"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">data</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">data</span><span class="p">[</span><span class="s">"attribute"</span><span class="p">]</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">data</span><span class="p">[</span><span class="s">"values"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">None</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'you must specify a list of values to match in bounds mode '</span> <span class="o">+</span> <span class="n">mode</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">is_str</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="s">"values"</span><span class="p">]):</span>
|
||||
<span class="n">data</span><span class="p">[</span><span class="s">"values"</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">data</span><span class="p">[</span><span class="s">"values"</span><span class="p">]]</span>
|
||||
<span class="k">if</span> <span class="s">"min-area"</span> <span class="ow">in</span> <span class="n">data</span><span class="p">:</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">data</span><span class="p">[</span><span class="s">"min-area"</span><span class="p">]</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="s">"min-area"</span><span class="p">])</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">Error</span><span class="p">(</span><span class="s">'min_area must be an integer or float'</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">data</span><span class="p">[</span><span class="s">'min-area'</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">parse_export</span><span class="p">(</span><span class="n">opts</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="s">"export"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">opts</span><span class="p">:</span>
|
||||
<span class="n">opts</span><span class="p">[</span><span class="s">"export"</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="n">exp</span> <span class="o">=</span> <span class="n">opts</span><span class="p">[</span><span class="s">"export"</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="s">"width"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">exp</span> <span class="ow">and</span> <span class="s">"height"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">exp</span><span class="p">:</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">"width"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1000</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">"height"</span><span class="p">]</span> <span class="o">=</span> <span class="s">"auto"</span>
|
||||
<span class="k">elif</span> <span class="s">"height"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">exp</span><span class="p">:</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">"height"</span><span class="p">]</span> <span class="o">=</span> <span class="s">"auto"</span>
|
||||
<span class="k">elif</span> <span class="s">"width"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">exp</span><span class="p">:</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">"width"</span><span class="p">]</span> <span class="o">=</span> <span class="s">"auto"</span>
|
||||
|
||||
<span class="k">if</span> <span class="s">"ratio"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">exp</span><span class="p">:</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">"ratio"</span><span class="p">]</span> <span class="o">=</span> <span class="s">"auto"</span>
|
||||
<span class="k">if</span> <span class="s">"round"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">exp</span><span class="p">:</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">"round"</span><span class="p">]</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">"round"</span><span class="p">]</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">exp</span><span class="p">[</span><span class="s">"round"</span><span class="p">])</span>
|
||||
<span class="k">if</span> <span class="s">"crop-to-view"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">exp</span><span class="p">:</span>
|
||||
<span class="n">exp</span><span class="p">[</span><span class="s">'crop-to-view'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
219
source/proj/__init__.html
Normal file
219
source/proj/__init__.html
Normal file
@@ -0,0 +1,219 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>__init__.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>__init__.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<pre><code>kartograph - a svg mapping library
|
||||
Copyright (C) 2011 Gregor Aisch
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Affero General Public License as
|
||||
published by the Free Software Foundation, either version 3 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Affero General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Affero General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
</code></pre>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="n">projections</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">()</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">base</span> <span class="kn">import</span> <span class="n">Proj</span>
|
||||
<span class="kn">from</span> <span class="nn">cylindrical</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'lonlat'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Equirectangular</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'cea'</span><span class="p">]</span> <span class="o">=</span> <span class="n">CEA</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'gallpeters'</span><span class="p">]</span> <span class="o">=</span> <span class="n">GallPeters</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'hobodyer'</span><span class="p">]</span> <span class="o">=</span> <span class="n">HoboDyer</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'behrmann'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Behrmann</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'balthasart'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Balthasart</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'mercator'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Mercator</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'ll'</span><span class="p">]</span> <span class="o">=</span> <span class="n">LonLat</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">pseudocylindrical</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'naturalearth'</span><span class="p">]</span> <span class="o">=</span> <span class="n">NaturalEarth</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'robinson'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Robinson</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'eckert4'</span><span class="p">]</span> <span class="o">=</span> <span class="n">EckertIV</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'sinusoidal'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Sinusoidal</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'mollweide'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Mollweide</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'wagner4'</span><span class="p">]</span> <span class="o">=</span> <span class="n">WagnerIV</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'wagner5'</span><span class="p">]</span> <span class="o">=</span> <span class="n">WagnerV</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'loximuthal'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Loximuthal</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'canters1'</span><span class="p">]</span> <span class="o">=</span> <span class="n">CantersModifiedSinusoidalI</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'goodehomolosine'</span><span class="p">]</span> <span class="o">=</span> <span class="n">GoodeHomolosine</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'hatano'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Hatano</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'aitoff'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Aitoff</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'winkel3'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Winkel3</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'nicolosi'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Nicolosi</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">azimuthal</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'ortho'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Orthographic</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'laea'</span><span class="p">]</span> <span class="o">=</span> <span class="n">LAEA</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'stereo'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Stereographic</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'satellite'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Satellite</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'eda'</span><span class="p">]</span> <span class="o">=</span> <span class="n">EquidistantAzimuthal</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'aitoff'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Aitoff</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">conic</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
|
||||
<span class="n">projections</span><span class="p">[</span><span class="s">'lcc'</span><span class="p">]</span> <span class="o">=</span> <span class="n">LCC</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Proj4</span><span class="p">(</span><span class="n">Proj</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">projstr</span><span class="p">):</span>
|
||||
<span class="kn">import</span> <span class="nn">pyproj</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">proj</span> <span class="o">=</span> <span class="n">pyproj</span><span class="o">.</span><span class="n">Proj</span><span class="p">(</span><span class="n">projstr</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="n">lon</span><span class="p">,</span> <span class="n">lat</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ll</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">proj</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">LCC__</span><span class="p">(</span><span class="n">Proj4</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mi">28</span><span class="p">,</span> <span class="n">lat2</span><span class="o">=</span><span class="mi">30</span><span class="p">):</span>
|
||||
<span class="n">Proj4</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s">'+proj=lcc +lat_0=</span><span class="si">%f</span><span class="s"> +lon_0=</span><span class="si">%f</span><span class="s"> +lat_1=</span><span class="si">%f</span><span class="s"> +lat_2=</span><span class="si">%f</span><span class="s">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">lat0</span><span class="p">,</span> <span class="n">lon0</span><span class="p">,</span> <span class="n">lat1</span><span class="p">,</span> <span class="n">lat2</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_visible</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="bp">True</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_truncate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">for</span> <span class="n">pjname</span> <span class="ow">in</span> <span class="n">projections</span><span class="p">:</span>
|
||||
<span class="n">projections</span><span class="p">[</span><span class="n">pjname</span><span class="p">]</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">pjname</span>
|
||||
|
||||
|
||||
<span class="k">if</span> <span class="n">__name__</span> <span class="o">==</span> <span class="s">'__main__'</span><span class="p">:</span>
|
||||
<span class="kn">import</span> <span class="nn">sys</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>some class testing
|
||||
p = LAEA(52.0,10.0)
|
||||
x,y = p.project(50,5)
|
||||
assert (round(x,2),round(y,2)) == (3962799.45, -2999718.85), 'LAEA proj error'</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">from</span> <span class="nn">kartograph.geometry</span> <span class="kn">import</span> <span class="n">BBox</span>
|
||||
|
||||
<span class="k">print</span> <span class="n">Proj</span><span class="o">.</span><span class="n">fromXML</span><span class="p">(</span><span class="n">Robinson</span><span class="p">(</span><span class="n">lat0</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span><span class="o">.</span><span class="n">toXML</span><span class="p">(),</span> <span class="n">projections</span><span class="p">)</span>
|
||||
|
||||
<span class="n">Robinson</span><span class="p">(</span><span class="n">lat0</span><span class="o">=</span><span class="mi">3</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mi">4</span><span class="p">)</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">pj</span> <span class="ow">in</span> <span class="n">projections</span><span class="p">:</span>
|
||||
<span class="n">Proj</span> <span class="o">=</span> <span class="n">projections</span><span class="p">[</span><span class="n">pj</span><span class="p">]</span>
|
||||
<span class="n">bbox</span> <span class="o">=</span> <span class="n">BBox</span><span class="p">()</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">proj</span> <span class="o">=</span> <span class="n">Proj</span><span class="p">(</span><span class="n">lon0</span><span class="o">=</span><span class="mi">60</span><span class="p">)</span>
|
||||
<span class="k">print</span> <span class="n">proj</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
|
||||
<span class="k">print</span> <span class="n">proj</span><span class="o">.</span><span class="n">world_bounds</span><span class="p">(</span><span class="n">bbox</span><span class="p">)</span>
|
||||
<span class="k">print</span> <span class="n">proj</span><span class="o">.</span><span class="n">toXML</span><span class="p">()</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">'Error'</span><span class="p">,</span> <span class="n">pj</span>
|
||||
<span class="k">print</span> <span class="n">sys</span><span class="o">.</span><span class="n">exc_info</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">raise</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
432
source/proj/base.html
Normal file
432
source/proj/base.html
Normal file
@@ -0,0 +1,432 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>base.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>base.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<pre><code>kartograph - a svg mapping library
|
||||
Copyright (C) 2011 Gregor Aisch
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Affero General Public License as
|
||||
published by the Free Software Foundation, either version 3 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Affero General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Affero General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
</code></pre>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">import</span> <span class="nn">math</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.errors</span> <span class="kn">import</span> <span class="n">KartographError</span>
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span><span class="p">,</span> <span class="n">LineString</span><span class="p">,</span> <span class="n">Point</span><span class="p">,</span> <span class="n">MultiPolygon</span><span class="p">,</span> <span class="n">MultiLineString</span><span class="p">,</span> <span class="n">MultiPoint</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>base class for projections</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Proj</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">HALFPI</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">pi</span> <span class="o">*</span> <span class="o">.</span><span class="mi">5</span>
|
||||
<span class="n">QUARTERPI</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">pi</span> <span class="o">*</span> <span class="o">.</span><span class="mi">25</span>
|
||||
|
||||
<span class="n">minLat</span> <span class="o">=</span> <span class="o">-</span><span class="mi">90</span>
|
||||
<span class="n">maxLat</span> <span class="o">=</span> <span class="mi">90</span>
|
||||
<span class="n">minLon</span> <span class="o">=</span> <span class="o">-</span><span class="mi">180</span>
|
||||
<span class="n">maxLon</span> <span class="o">=</span> <span class="mi">180</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_shift_polygon</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">polygon</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="n">polygon</span><span class="p">]</span> <span class="c"># no shifting</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">plot</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geometry</span><span class="p">):</span>
|
||||
<span class="n">geometries</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">geometry</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">geometry</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">geometry</span><span class="p">]</span>
|
||||
<span class="n">res</span> <span class="o">=</span> <span class="p">[]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>at first shift polygons
|
||||
shifted = []
|
||||
for geom in geometries:
|
||||
if isinstance(geom, Polygon):
|
||||
shifted += self._shift_polygon(geom)
|
||||
else:
|
||||
shifted += [geom]</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">geom</span> <span class="ow">in</span> <span class="n">geometries</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">Polygon</span><span class="p">):</span>
|
||||
<span class="n">res</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">plot_polygon</span><span class="p">(</span><span class="n">geom</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">LineString</span><span class="p">):</span>
|
||||
<span class="n">rings</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">plot_linear_ring</span><span class="p">(</span><span class="n">geom</span><span class="o">.</span><span class="n">coords</span><span class="p">)</span>
|
||||
<span class="n">res</span> <span class="o">+=</span> <span class="nb">map</span><span class="p">(</span><span class="n">LineString</span><span class="p">,</span> <span class="n">rings</span><span class="p">)</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geom</span><span class="p">,</span> <span class="n">Point</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_visible</span><span class="p">(</span><span class="n">geom</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">geom</span><span class="o">.</span><span class="n">y</span><span class="p">):</span>
|
||||
<span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">geom</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">geom</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="n">res</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">Point</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">))</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>raise KartographError('proj.plot(): unknown geometry type %s' % geom)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">Polygon</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">MultiPolygon</span><span class="p">(</span><span class="n">res</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">LineString</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">MultiLineString</span><span class="p">(</span><span class="n">res</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">LineString</span><span class="p">(</span><span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">res</span><span class="p">)</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">MultiPoint</span><span class="p">(</span><span class="n">res</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">Point</span><span class="p">(</span><span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">],</span> <span class="n">res</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">])</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">plot_polygon</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">polygon</span><span class="p">):</span>
|
||||
<span class="n">ext</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">plot_linear_ring</span><span class="p">(</span><span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="p">,</span> <span class="n">truncate</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">ext</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="n">pts_int</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">interior</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">interiors</span><span class="p">:</span>
|
||||
<span class="n">pts_int</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">plot_linear_ring</span><span class="p">(</span><span class="n">interior</span><span class="p">,</span> <span class="n">truncate</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="n">Polygon</span><span class="p">(</span><span class="n">ext</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pts_int</span><span class="p">)]</span>
|
||||
<span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">ext</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="p">[]</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'unhandled case: exterior is split into multiple rings'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">plot_linear_ring</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ring</span><span class="p">,</span> <span class="n">truncate</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span>
|
||||
<span class="n">ignore</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
<span class="n">points</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">ring</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">vis</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_visible</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">vis</span><span class="p">:</span>
|
||||
<span class="n">ignore</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">vis</span> <span class="ow">and</span> <span class="n">truncate</span><span class="p">:</span>
|
||||
<span class="n">points</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_truncate</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">))</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">points</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">))</span>
|
||||
<span class="k">if</span> <span class="n">ignore</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="p">[]</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="n">points</span><span class="p">]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">ll</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">assert</span> <span class="bp">False</span><span class="p">,</span> <span class="s">'Proj is an abstract class'</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project_inverse</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="k">assert</span> <span class="bp">False</span><span class="p">,</span> <span class="s">'inverse projection is not supporte by </span><span class="si">%s</span><span class="s">'</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_visible</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">assert</span> <span class="bp">False</span><span class="p">,</span> <span class="s">'Proj is an abstract class'</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_truncate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="k">assert</span> <span class="bp">False</span><span class="p">,</span> <span class="s">'truncation is not implemented'</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">world_bounds</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">bbox</span><span class="p">,</span> <span class="n">llbbox</span><span class="o">=</span><span class="p">(</span><span class="o">-</span><span class="mi">180</span><span class="p">,</span> <span class="o">-</span><span class="mi">90</span><span class="p">,</span> <span class="mi">180</span><span class="p">,</span> <span class="mi">90</span><span class="p">)):</span>
|
||||
<span class="n">sea</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sea_shape</span><span class="p">(</span><span class="n">llbbox</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="ow">in</span> <span class="n">sea</span><span class="p">[</span><span class="mi">0</span><span class="p">]:</span>
|
||||
<span class="n">bbox</span><span class="o">.</span><span class="n">update</span><span class="p">((</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">))</span>
|
||||
<span class="k">return</span> <span class="n">bbox</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
<p>returns a WGS84 polygon that represents the limits of this projection
|
||||
points that lie outside this polygon will not be plotted
|
||||
this polygon will also be used to render the sea layer in world maps</p>
|
||||
<p>defaults to full WGS84 range</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">bounding_geometry</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">llbbox</span><span class="o">=</span><span class="p">(</span><span class="o">-</span><span class="mi">180</span><span class="p">,</span> <span class="o">-</span><span class="mi">90</span><span class="p">,</span> <span class="mi">180</span><span class="p">,</span> <span class="mi">90</span><span class="p">),</span> <span class="n">projected</span><span class="o">=</span><span class="bp">False</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span>
|
||||
<span class="n">sea</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
|
||||
<span class="n">minLon</span> <span class="o">=</span> <span class="n">llbbox</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="n">maxLon</span> <span class="o">=</span> <span class="n">llbbox</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
|
||||
<span class="n">minLat</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">minLat</span><span class="p">,</span> <span class="n">llbbox</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
|
||||
<span class="n">maxLat</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">maxLat</span><span class="p">,</span> <span class="n">llbbox</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">xfrange</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="n">stop</span> <span class="o">></span> <span class="n">start</span><span class="p">:</span>
|
||||
<span class="k">while</span> <span class="n">start</span> <span class="o"><</span> <span class="n">stop</span><span class="p">:</span>
|
||||
<span class="k">yield</span> <span class="n">start</span>
|
||||
<span class="n">start</span> <span class="o">+=</span> <span class="n">step</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">while</span> <span class="n">stop</span> <span class="o"><</span> <span class="n">start</span><span class="p">:</span>
|
||||
<span class="k">yield</span> <span class="n">start</span>
|
||||
<span class="n">start</span> <span class="o">-=</span> <span class="n">step</span>
|
||||
|
||||
<span class="n">lat_step</span> <span class="o">=</span> <span class="nb">abs</span><span class="p">((</span><span class="n">maxLat</span> <span class="o">-</span> <span class="n">minLat</span><span class="p">)</span> <span class="o">/</span> <span class="mf">180.0</span><span class="p">)</span>
|
||||
<span class="n">lon_step</span> <span class="o">=</span> <span class="nb">abs</span><span class="p">((</span><span class="n">maxLon</span> <span class="o">-</span> <span class="n">minLon</span><span class="p">)</span> <span class="o">/</span> <span class="mf">360.0</span><span class="p">)</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">lat</span> <span class="ow">in</span> <span class="n">xfrange</span><span class="p">(</span><span class="n">minLat</span><span class="p">,</span> <span class="n">maxLat</span><span class="p">,</span> <span class="n">lat_step</span><span class="p">):</span>
|
||||
<span class="n">sea</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">minLon</span><span class="p">,</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">lon</span> <span class="ow">in</span> <span class="n">xfrange</span><span class="p">(</span><span class="n">minLon</span><span class="p">,</span> <span class="n">maxLon</span><span class="p">,</span> <span class="n">lon_step</span><span class="p">):</span>
|
||||
<span class="n">sea</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span><span class="p">,</span> <span class="n">maxLat</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">lat</span> <span class="ow">in</span> <span class="n">xfrange</span><span class="p">(</span><span class="n">maxLat</span><span class="p">,</span> <span class="n">minLat</span><span class="p">,</span> <span class="n">lat_step</span><span class="p">):</span>
|
||||
<span class="n">sea</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">maxLon</span><span class="p">,</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">lon</span> <span class="ow">in</span> <span class="n">xfrange</span><span class="p">(</span><span class="n">maxLon</span><span class="p">,</span> <span class="n">minLon</span><span class="p">,</span> <span class="n">lon_step</span><span class="p">):</span>
|
||||
<span class="n">sea</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span><span class="p">,</span> <span class="n">minLat</span><span class="p">))</span>
|
||||
|
||||
<span class="k">if</span> <span class="n">projected</span><span class="p">:</span>
|
||||
<span class="n">sea</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">project</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">sea</span><span class="p">]</span>
|
||||
|
||||
<span class="k">return</span> <span class="n">Polygon</span><span class="p">(</span><span class="n">sea</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'Proj('</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">+</span> <span class="s">')'</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="nb">dict</span><span class="p">(</span><span class="nb">id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
<p>returns array of attribute names of this projection</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="nd">@staticmethod</span>
|
||||
<span class="k">def</span> <span class="nf">attributes</span><span class="p">():</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="p">[]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-22'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-22'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="nd">@staticmethod</span>
|
||||
<span class="k">def</span> <span class="nf">fromXML</span><span class="p">(</span><span class="n">xml</span><span class="p">,</span> <span class="n">projections</span><span class="p">):</span>
|
||||
<span class="nb">id</span> <span class="o">=</span> <span class="n">xml</span><span class="p">[</span><span class="s">'id'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="nb">id</span> <span class="ow">in</span> <span class="n">projections</span><span class="p">:</span>
|
||||
<span class="n">ProjClass</span> <span class="o">=</span> <span class="n">projections</span><span class="p">[</span><span class="nb">id</span><span class="p">]</span>
|
||||
<span class="n">args</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">prop</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span> <span class="ow">in</span> <span class="n">xml</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">prop</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">!=</span> <span class="s">"id"</span><span class="p">:</span>
|
||||
<span class="n">args</span><span class="p">[</span><span class="n">prop</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">ProjClass</span><span class="p">(</span><span class="o">**</span><span class="n">args</span><span class="p">)</span>
|
||||
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">"could not restore projection from xml"</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
320
source/proj/conic.html
Normal file
320
source/proj/conic.html
Normal file
@@ -0,0 +1,320 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>conic.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>conic.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<pre><code>kartograph - a svg mapping library
|
||||
Copyright (C) 2011 Gregor Aisch
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Affero General Public License as
|
||||
published by the Free Software Foundation, either version 3 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Affero General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Affero General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
</code></pre>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">base</span> <span class="kn">import</span> <span class="n">Proj</span>
|
||||
<span class="kn">import</span> <span class="nn">math</span>
|
||||
<span class="kn">from</span> <span class="nn">math</span> <span class="kn">import</span> <span class="n">radians</span> <span class="k">as</span> <span class="n">rad</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Conic</span><span class="p">(</span><span class="n">Proj</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lat2</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lat0</span> <span class="o">=</span> <span class="n">lat0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">phi0</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat0</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lon0</span> <span class="o">=</span> <span class="n">lon0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lam0</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lon0</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lat1</span> <span class="o">=</span> <span class="n">lat1</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">phi1</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat1</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lat2</span> <span class="o">=</span> <span class="n">lat2</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">phi2</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat2</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="n">lon0</span> <span class="o">!=</span> <span class="mf">0.0</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">bounds</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">bounding_geometry</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_visible</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="bp">True</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_truncate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="nb">super</span><span class="p">(</span><span class="n">Conic</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">attrs</span><span class="p">()</span>
|
||||
<span class="n">p</span><span class="p">[</span><span class="s">'lon0'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span>
|
||||
<span class="n">p</span><span class="p">[</span><span class="s">'lat0'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lat0</span>
|
||||
<span class="n">p</span><span class="p">[</span><span class="s">'lat1'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lat1</span>
|
||||
<span class="n">p</span><span class="p">[</span><span class="s">'lat2'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lat2</span>
|
||||
<span class="k">return</span> <span class="n">p</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>shifts a polygon according to the origin longitude</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_shift_polygon</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">polygon</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span> <span class="o">==</span> <span class="mf">0.0</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="n">polygon</span><span class="p">]</span> <span class="c"># no need to shift anything</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>we need to split and join some polygons</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">poly_coords</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">holes</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">poly_coords</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span><span class="p">,</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">hole</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">interiors</span><span class="p">:</span>
|
||||
<span class="n">hole_coords</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">hole</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">hole_coords</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span><span class="p">,</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="n">holes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">hole_coords</span><span class="p">)</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">Polygon</span><span class="p">(</span><span class="n">poly_coords</span><span class="p">,</span> <span class="n">holes</span><span class="p">)</span>
|
||||
|
||||
<span class="n">polygons</span> <span class="o">=</span> <span class="p">[]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>print "shifted polygons", (time.time() - start)
|
||||
start = time.time()</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">p_in</span> <span class="o">=</span> <span class="n">poly</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">bounds</span><span class="p">)</span>
|
||||
<span class="n">polygons</span> <span class="o">+=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">p_in</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">p_in</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">p_in</span><span class="p">]</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
<p>print "computed polygons inside bounds", (time.time() - start)
|
||||
start = time.time()</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">p_out</span> <span class="o">=</span> <span class="n">poly</span><span class="o">.</span><span class="n">symmetric_difference</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">bounds</span><span class="p">)</span>
|
||||
<span class="n">out_geoms</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">p_out</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">p_out</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">p_out</span><span class="p">]</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="n">out_geoms</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
<p>print "computed polygons outside bounds", (time.time() - start)
|
||||
start = time.time()</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">polygon</span> <span class="ow">in</span> <span class="n">out_geoms</span><span class="p">:</span>
|
||||
<span class="n">ext_pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">int_pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">s</span> <span class="o">=</span> <span class="mi">0</span> <span class="c"># at first we compute the avg longitude</span>
|
||||
<span class="n">c</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">s</span> <span class="o">+=</span> <span class="n">lon</span>
|
||||
<span class="n">c</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="n">left</span> <span class="o">=</span> <span class="n">s</span> <span class="o">/</span> <span class="nb">float</span><span class="p">(</span><span class="n">c</span><span class="p">)</span> <span class="o"><</span> <span class="o">-</span><span class="mi">180</span> <span class="c"># and use it to decide where to shift the polygon</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">ext_pts</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">+</span> <span class="p">(</span><span class="o">-</span><span class="mi">360</span><span class="p">,</span> <span class="mi">360</span><span class="p">)[</span><span class="n">left</span><span class="p">],</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">interior</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">interiors</span><span class="p">:</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">interior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">+</span> <span class="p">(</span><span class="o">-</span><span class="mi">360</span><span class="p">,</span> <span class="mi">360</span><span class="p">)[</span><span class="n">left</span><span class="p">],</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="n">int_pts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="n">polygons</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">Polygon</span><span class="p">(</span><span class="n">ext_pts</span><span class="p">,</span> <span class="n">int_pts</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>print "shifted outside polygons to inside", (time.time() - start)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="n">polygons</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
<p>Lambert Conformal Conic Projection (spherical)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="nd">@staticmethod</span>
|
||||
<span class="k">def</span> <span class="nf">attributes</span><span class="p">():</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="s">'lon0'</span><span class="p">,</span> <span class="s">'lat0'</span><span class="p">,</span> <span class="s">'lat1'</span><span class="p">,</span> <span class="s">'lat2'</span><span class="p">]</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">LCC</span><span class="p">(</span><span class="n">Conic</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mi">30</span><span class="p">,</span> <span class="n">lat2</span><span class="o">=</span><span class="mi">50</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">math</span> <span class="kn">import</span> <span class="n">sin</span><span class="p">,</span> <span class="n">cos</span><span class="p">,</span> <span class="n">tan</span><span class="p">,</span> <span class="nb">pow</span><span class="p">,</span> <span class="n">log</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">minLat</span> <span class="o">=</span> <span class="o">-</span><span class="mi">60</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">maxLat</span> <span class="o">=</span> <span class="mi">85</span>
|
||||
<span class="n">Conic</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="n">lat0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="n">lat1</span><span class="p">,</span> <span class="n">lat2</span><span class="o">=</span><span class="n">lat2</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">n</span> <span class="o">=</span> <span class="n">n</span> <span class="o">=</span> <span class="n">sin</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi1</span><span class="p">)</span>
|
||||
<span class="n">cosphi</span> <span class="o">=</span> <span class="n">cos</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi1</span><span class="p">)</span>
|
||||
<span class="n">secant</span> <span class="o">=</span> <span class="nb">abs</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi1</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">phi2</span><span class="p">)</span> <span class="o">>=</span> <span class="mf">1e-10</span>
|
||||
<span class="k">if</span> <span class="n">secant</span><span class="p">:</span>
|
||||
<span class="n">n</span> <span class="o">=</span> <span class="n">log</span><span class="p">(</span><span class="n">cosphi</span> <span class="o">/</span> <span class="n">cos</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi2</span><span class="p">))</span> <span class="o">/</span> <span class="n">log</span><span class="p">(</span><span class="n">tan</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">QUARTERPI</span> <span class="o">+</span> <span class="o">.</span><span class="mi">5</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">phi2</span><span class="p">)</span> <span class="o">/</span> <span class="n">tan</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">QUARTERPI</span> <span class="o">+</span> <span class="o">.</span><span class="mi">5</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">phi1</span><span class="p">))</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">c</span> <span class="o">=</span> <span class="n">c</span> <span class="o">=</span> <span class="n">cosphi</span> <span class="o">*</span> <span class="nb">pow</span><span class="p">(</span><span class="n">tan</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">QUARTERPI</span> <span class="o">+</span> <span class="o">.</span><span class="mi">5</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">phi1</span><span class="p">),</span> <span class="n">n</span><span class="p">)</span> <span class="o">/</span> <span class="n">n</span>
|
||||
<span class="k">if</span> <span class="nb">abs</span><span class="p">(</span><span class="nb">abs</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi0</span><span class="p">)</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">HALFPI</span><span class="p">)</span> <span class="o"><</span> <span class="mf">1e-10</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">rho0</span> <span class="o">=</span> <span class="mf">0.</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">rho0</span> <span class="o">=</span> <span class="n">c</span> <span class="o">*</span> <span class="nb">pow</span><span class="p">(</span><span class="n">tan</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">QUARTERPI</span> <span class="o">+</span> <span class="o">.</span><span class="mi">5</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">phi0</span><span class="p">),</span> <span class="o">-</span><span class="n">n</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="n">lon</span><span class="p">,</span> <span class="n">lat</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ll</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="n">phi</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat</span><span class="p">)</span>
|
||||
<span class="n">lam</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lon</span><span class="p">)</span>
|
||||
<span class="n">n</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">n</span>
|
||||
<span class="k">if</span> <span class="nb">abs</span><span class="p">(</span><span class="nb">abs</span><span class="p">(</span><span class="n">phi</span><span class="p">)</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">HALFPI</span><span class="p">)</span> <span class="o"><</span> <span class="mf">1e-10</span><span class="p">:</span>
|
||||
<span class="n">rho</span> <span class="o">=</span> <span class="mf">0.0</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">rho</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c</span> <span class="o">*</span> <span class="n">math</span><span class="o">.</span><span class="n">pow</span><span class="p">(</span><span class="n">math</span><span class="o">.</span><span class="n">tan</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">QUARTERPI</span> <span class="o">+</span> <span class="mf">0.5</span> <span class="o">*</span> <span class="n">phi</span><span class="p">),</span> <span class="o">-</span><span class="n">n</span><span class="p">)</span>
|
||||
<span class="n">lam_</span> <span class="o">=</span> <span class="p">(</span><span class="n">lam</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">lam0</span><span class="p">)</span> <span class="o">*</span> <span class="n">n</span>
|
||||
<span class="n">x</span> <span class="o">=</span> <span class="mi">1000</span> <span class="o">*</span> <span class="n">rho</span> <span class="o">*</span> <span class="n">math</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">lam_</span><span class="p">)</span>
|
||||
<span class="n">y</span> <span class="o">=</span> <span class="mi">1000</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">rho0</span> <span class="o">-</span> <span class="n">rho</span> <span class="o">*</span> <span class="n">math</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">lam_</span><span class="p">))</span>
|
||||
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
426
source/proj/cylindrical.html
Normal file
426
source/proj/cylindrical.html
Normal file
@@ -0,0 +1,426 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>cylindrical.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>cylindrical.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<pre><code>kartograph - a svg mapping library
|
||||
Copyright (C) 2011 Gregor Aisch
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU Affero General Public License as
|
||||
published by the Free Software Foundation, either version 3 of the
|
||||
License, or (at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Affero General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Affero General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
</code></pre>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">base</span> <span class="kn">import</span> <span class="n">Proj</span>
|
||||
<span class="kn">import</span> <span class="nn">math</span>
|
||||
<span class="kn">from</span> <span class="nn">math</span> <span class="kn">import</span> <span class="n">radians</span> <span class="k">as</span> <span class="n">rad</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">Cylindrical</span><span class="p">(</span><span class="n">Proj</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">flip</span> <span class="o">=</span> <span class="n">flip</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lon0</span> <span class="o">=</span> <span class="n">lon0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">bounds</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">bounding_geometry</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>shifts a polygon according to the origin longitude</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_shift_polygon</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">polygon</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span> <span class="o">==</span> <span class="mf">0.0</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="n">polygon</span><span class="p">]</span> <span class="c"># no need to shift anything</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>we need to split and join some polygons</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">poly_coords</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">holes</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">poly_coords</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span><span class="p">,</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">hole</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">interiors</span><span class="p">:</span>
|
||||
<span class="n">hole_coords</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">hole</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">hole_coords</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span><span class="p">,</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="n">holes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">hole_coords</span><span class="p">)</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">Polygon</span><span class="p">(</span><span class="n">poly_coords</span><span class="p">,</span> <span class="n">holes</span><span class="p">)</span>
|
||||
|
||||
<span class="n">polygons</span> <span class="o">=</span> <span class="p">[]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>print "shifted polygons", (time.time() - start)
|
||||
start = time.time()</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">p_in</span> <span class="o">=</span> <span class="n">poly</span><span class="o">.</span><span class="n">intersection</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">bounds</span><span class="p">)</span>
|
||||
<span class="n">polygons</span> <span class="o">+=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">p_in</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">p_in</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">p_in</span><span class="p">]</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>print "computed polygons inside bounds", (time.time() - start)
|
||||
start = time.time()</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">p_out</span> <span class="o">=</span> <span class="n">poly</span><span class="o">.</span><span class="n">symmetric_difference</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">bounds</span><span class="p">)</span>
|
||||
<span class="n">out_geoms</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">p_out</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">p_out</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">p_out</span><span class="p">]</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="n">out_geoms</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>print "computed polygons outside bounds", (time.time() - start)
|
||||
start = time.time()</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">polygon</span> <span class="ow">in</span> <span class="n">out_geoms</span><span class="p">:</span>
|
||||
<span class="n">ext_pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">int_pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">s</span> <span class="o">=</span> <span class="mi">0</span> <span class="c"># at first we compute the avg longitude</span>
|
||||
<span class="n">c</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">s</span> <span class="o">+=</span> <span class="n">lon</span>
|
||||
<span class="n">c</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="n">left</span> <span class="o">=</span> <span class="n">s</span> <span class="o">/</span> <span class="nb">float</span><span class="p">(</span><span class="n">c</span><span class="p">)</span> <span class="o"><</span> <span class="o">-</span><span class="mi">180</span> <span class="c"># and use it to decide where to shift the polygon</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">ext_pts</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">+</span> <span class="p">(</span><span class="o">-</span><span class="mi">360</span><span class="p">,</span> <span class="mi">360</span><span class="p">)[</span><span class="n">left</span><span class="p">],</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="k">for</span> <span class="n">interior</span> <span class="ow">in</span> <span class="n">polygon</span><span class="o">.</span><span class="n">interiors</span><span class="p">:</span>
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span> <span class="ow">in</span> <span class="n">interior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">pts</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">lon</span> <span class="o">+</span> <span class="p">(</span><span class="o">-</span><span class="mi">360</span><span class="p">,</span> <span class="mi">360</span><span class="p">)[</span><span class="n">left</span><span class="p">],</span> <span class="n">lat</span><span class="p">))</span>
|
||||
<span class="n">int_pts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span>
|
||||
<span class="n">polygons</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">Polygon</span><span class="p">(</span><span class="n">ext_pts</span><span class="p">,</span> <span class="n">int_pts</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>print "shifted outside polygons to inside", (time.time() - start)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="n">polygons</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_visible</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="bp">True</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_truncate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="n">a</span> <span class="o">=</span> <span class="nb">super</span><span class="p">(</span><span class="n">Cylindrical</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">attrs</span><span class="p">()</span>
|
||||
<span class="n">a</span><span class="p">[</span><span class="s">'lon0'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span>
|
||||
<span class="n">a</span><span class="p">[</span><span class="s">'flip'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">flip</span>
|
||||
<span class="k">return</span> <span class="n">a</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'Proj('</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">+</span> <span class="s">', lon0=</span><span class="si">%s</span><span class="s">)'</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">lon0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
<p>Equirectangular Projection, aka lonlat, aka plate carree</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="nd">@staticmethod</span>
|
||||
<span class="k">def</span> <span class="nf">attributes</span><span class="p">():</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="s">'lon0'</span><span class="p">,</span> <span class="s">'flip'</span><span class="p">]</span>
|
||||
|
||||
<span class="k">def</span> <span class="nf">ll</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">flip</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="o">-</span><span class="n">lon</span><span class="p">,</span> <span class="o">-</span><span class="n">lat</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">Equirectangular</span><span class="p">(</span><span class="n">Cylindrical</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lat0</span> <span class="o">=</span> <span class="n">lat0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">phi0</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat0</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="n">Cylindrical</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="n">flip</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="n">lon</span><span class="p">,</span> <span class="n">lat</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ll</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">lon</span> <span class="o">*</span> <span class="n">math</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi0</span><span class="p">)</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">,</span> <span class="n">lat</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span> <span class="o">*</span> <span class="mi">1000</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
<p>Cylindrical Equal Area Projection</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">CEA</span><span class="p">(</span><span class="n">Cylindrical</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lat0</span> <span class="o">=</span> <span class="n">lat0</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lat1</span> <span class="o">=</span> <span class="n">lat1</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">phi0</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat0</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">phi1</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat1</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">lam0</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lon0</span><span class="p">)</span>
|
||||
<span class="n">Cylindrical</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="n">flip</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="n">lon</span><span class="p">,</span> <span class="n">lat</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ll</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="n">lam</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lon</span><span class="p">)</span>
|
||||
<span class="n">phi</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="n">x</span> <span class="o">=</span> <span class="p">(</span><span class="n">lam</span><span class="p">)</span> <span class="o">*</span> <span class="n">math</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi1</span><span class="p">)</span> <span class="o">*</span> <span class="mi">1000</span>
|
||||
<span class="n">y</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">phi</span><span class="p">)</span> <span class="o">/</span> <span class="n">math</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">phi1</span><span class="p">)</span> <span class="o">*</span> <span class="mi">1000</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="n">p</span> <span class="o">=</span> <span class="nb">super</span><span class="p">(</span><span class="n">CEA</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">attrs</span><span class="p">()</span>
|
||||
<span class="n">p</span><span class="p">[</span><span class="s">'lat1'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lat1</span>
|
||||
<span class="k">return</span> <span class="n">p</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="nd">@staticmethod</span>
|
||||
<span class="k">def</span> <span class="nf">attributes</span><span class="p">():</span>
|
||||
<span class="k">return</span> <span class="p">[</span><span class="s">'lon0'</span><span class="p">,</span> <span class="s">'lat1'</span><span class="p">,</span> <span class="s">'flip'</span><span class="p">]</span>
|
||||
|
||||
<span class="k">def</span> <span class="nf">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'Proj('</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">+</span> <span class="s">', lon0=</span><span class="si">%s</span><span class="s">, lat1=</span><span class="si">%s</span><span class="s">)'</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">lon0</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">lat1</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">GallPeters</span><span class="p">(</span><span class="n">CEA</span><span class="p">):</span>
|
||||
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="n">CEA</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mi">45</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="n">flip</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">HoboDyer</span><span class="p">(</span><span class="n">CEA</span><span class="p">):</span>
|
||||
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="n">CEA</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="n">lat0</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mf">37.5</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="n">flip</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">Behrmann</span><span class="p">(</span><span class="n">CEA</span><span class="p">):</span>
|
||||
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="n">CEA</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mi">30</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="n">lat0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="n">flip</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">Balthasart</span><span class="p">(</span><span class="n">CEA</span><span class="p">):</span>
|
||||
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="n">CEA</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lat1</span><span class="o">=</span><span class="mi">50</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="n">lat0</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="n">flip</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">Mercator</span><span class="p">(</span><span class="n">Cylindrical</span><span class="p">):</span>
|
||||
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">lat0</span><span class="o">=</span><span class="mf">0.0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
|
||||
<span class="n">Cylindrical</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon0</span><span class="o">=</span><span class="n">lon0</span><span class="p">,</span> <span class="n">flip</span><span class="o">=</span><span class="n">flip</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">minLat</span> <span class="o">=</span> <span class="o">-</span><span class="mi">85</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">maxLat</span> <span class="o">=</span> <span class="mi">85</span>
|
||||
|
||||
<span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="n">lon</span><span class="p">,</span> <span class="n">lat</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ll</span><span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
<span class="n">lam</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lon</span><span class="p">)</span>
|
||||
<span class="n">phi</span> <span class="o">=</span> <span class="n">rad</span><span class="p">(</span><span class="n">lat</span> <span class="o">*</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span>
|
||||
<span class="n">x</span> <span class="o">=</span> <span class="n">lam</span> <span class="o">*</span> <span class="mi">1000</span>
|
||||
<span class="n">y</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">log</span><span class="p">((</span><span class="mi">1</span> <span class="o">+</span> <span class="n">math</span><span class="o">.</span><span class="n">sin</span><span class="p">(</span><span class="n">phi</span><span class="p">))</span> <span class="o">/</span> <span class="n">math</span><span class="o">.</span><span class="n">cos</span><span class="p">(</span><span class="n">phi</span><span class="p">))</span> <span class="o">*</span> <span class="mi">1000</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">class</span> <span class="nc">LonLat</span><span class="p">(</span><span class="n">Cylindrical</span><span class="p">):</span>
|
||||
<span class="k">def</span> <span class="nf">project</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="p">(</span><span class="n">lon</span><span class="p">,</span> <span class="n">lat</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
1014
source/proj/pseudocylindrical.html
Normal file
1014
source/proj/pseudocylindrical.html
Normal file
File diff suppressed because one or more lines are too long
186
source/pycco.css
Normal file
186
source/pycco.css
Normal file
@@ -0,0 +1,186 @@
|
||||
/*--------------------- Layout and Typography ----------------------------*/
|
||||
body {
|
||||
font-family: 'Palatino Linotype', 'Book Antiqua', Palatino, FreeSerif, serif;
|
||||
font-size: 16px;
|
||||
line-height: 24px;
|
||||
color: #252519;
|
||||
margin: 0; padding: 0;
|
||||
}
|
||||
a {
|
||||
color: #261a3b;
|
||||
}
|
||||
a:visited {
|
||||
color: #261a3b;
|
||||
}
|
||||
p {
|
||||
margin: 0 0 15px 0;
|
||||
}
|
||||
h1, h2, h3, h4, h5, h6 {
|
||||
margin: 40px 0 15px 0;
|
||||
}
|
||||
h2, h3, h4, h5, h6 {
|
||||
margin-top: 0;
|
||||
}
|
||||
#container, div.section {
|
||||
position: relative;
|
||||
}
|
||||
#background {
|
||||
position: fixed;
|
||||
top: 0; left: 580px; right: 0; bottom: 0;
|
||||
background: #f5f5ff;
|
||||
border-left: 1px solid #e5e5ee;
|
||||
z-index: -1;
|
||||
}
|
||||
#jump_to, #jump_page {
|
||||
background: white;
|
||||
-webkit-box-shadow: 0 0 25px #777; -moz-box-shadow: 0 0 25px #777;
|
||||
-webkit-border-bottom-left-radius: 5px; -moz-border-radius-bottomleft: 5px;
|
||||
font: 10px Arial;
|
||||
text-transform: uppercase;
|
||||
cursor: pointer;
|
||||
text-align: right;
|
||||
}
|
||||
#jump_to, #jump_wrapper {
|
||||
position: fixed;
|
||||
right: 0; top: 0;
|
||||
padding: 5px 10px;
|
||||
}
|
||||
#jump_wrapper {
|
||||
padding: 0;
|
||||
display: none;
|
||||
}
|
||||
#jump_to:hover #jump_wrapper {
|
||||
display: block;
|
||||
}
|
||||
#jump_page {
|
||||
padding: 5px 0 3px;
|
||||
margin: 0 0 25px 25px;
|
||||
}
|
||||
#jump_page .source {
|
||||
display: block;
|
||||
padding: 5px 10px;
|
||||
text-decoration: none;
|
||||
border-top: 1px solid #eee;
|
||||
}
|
||||
#jump_page .source:hover {
|
||||
background: #f5f5ff;
|
||||
}
|
||||
#jump_page .source:first-child {
|
||||
}
|
||||
div.docs {
|
||||
float: left;
|
||||
max-width: 500px;
|
||||
min-width: 500px;
|
||||
min-height: 5px;
|
||||
padding: 10px 25px 1px 50px;
|
||||
vertical-align: top;
|
||||
text-align: left;
|
||||
}
|
||||
.docs pre {
|
||||
margin: 15px 0 15px;
|
||||
padding-left: 15px;
|
||||
}
|
||||
.docs p tt, .docs p code {
|
||||
background: #f8f8ff;
|
||||
border: 1px solid #dedede;
|
||||
font-size: 12px;
|
||||
padding: 0 0.2em;
|
||||
}
|
||||
.octowrap {
|
||||
position: relative;
|
||||
}
|
||||
.octothorpe {
|
||||
font: 12px Arial;
|
||||
text-decoration: none;
|
||||
color: #454545;
|
||||
position: absolute;
|
||||
top: 3px; left: -20px;
|
||||
padding: 1px 2px;
|
||||
opacity: 0;
|
||||
-webkit-transition: opacity 0.2s linear;
|
||||
}
|
||||
div.docs:hover .octothorpe {
|
||||
opacity: 1;
|
||||
}
|
||||
div.code {
|
||||
margin-left: 580px;
|
||||
padding: 14px 15px 16px 50px;
|
||||
vertical-align: top;
|
||||
}
|
||||
.code pre, .docs p code {
|
||||
font-size: 12px;
|
||||
}
|
||||
pre, tt, code {
|
||||
line-height: 18px;
|
||||
font-family: Monaco, Consolas, "Lucida Console", monospace;
|
||||
margin: 0; padding: 0;
|
||||
}
|
||||
div.clearall {
|
||||
clear: both;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------- Syntax Highlighting -----------------------------*/
|
||||
td.linenos { background-color: #f0f0f0; padding-right: 10px; }
|
||||
span.lineno { background-color: #f0f0f0; padding: 0 5px 0 5px; }
|
||||
body .hll { background-color: #ffffcc }
|
||||
body .c { color: #408080; font-style: italic } /* Comment */
|
||||
body .err { border: 1px solid #FF0000 } /* Error */
|
||||
body .k { color: #954121 } /* Keyword */
|
||||
body .o { color: #666666 } /* Operator */
|
||||
body .cm { color: #408080; font-style: italic } /* Comment.Multiline */
|
||||
body .cp { color: #BC7A00 } /* Comment.Preproc */
|
||||
body .c1 { color: #408080; font-style: italic } /* Comment.Single */
|
||||
body .cs { color: #408080; font-style: italic } /* Comment.Special */
|
||||
body .gd { color: #A00000 } /* Generic.Deleted */
|
||||
body .ge { font-style: italic } /* Generic.Emph */
|
||||
body .gr { color: #FF0000 } /* Generic.Error */
|
||||
body .gh { color: #000080; font-weight: bold } /* Generic.Heading */
|
||||
body .gi { color: #00A000 } /* Generic.Inserted */
|
||||
body .go { color: #808080 } /* Generic.Output */
|
||||
body .gp { color: #000080; font-weight: bold } /* Generic.Prompt */
|
||||
body .gs { font-weight: bold } /* Generic.Strong */
|
||||
body .gu { color: #800080; font-weight: bold } /* Generic.Subheading */
|
||||
body .gt { color: #0040D0 } /* Generic.Traceback */
|
||||
body .kc { color: #954121 } /* Keyword.Constant */
|
||||
body .kd { color: #954121; font-weight: bold } /* Keyword.Declaration */
|
||||
body .kn { color: #954121; font-weight: bold } /* Keyword.Namespace */
|
||||
body .kp { color: #954121 } /* Keyword.Pseudo */
|
||||
body .kr { color: #954121; font-weight: bold } /* Keyword.Reserved */
|
||||
body .kt { color: #B00040 } /* Keyword.Type */
|
||||
body .m { color: #666666 } /* Literal.Number */
|
||||
body .s { color: #219161 } /* Literal.String */
|
||||
body .na { color: #7D9029 } /* Name.Attribute */
|
||||
body .nb { color: #954121 } /* Name.Builtin */
|
||||
body .nc { color: #0000FF; font-weight: bold } /* Name.Class */
|
||||
body .no { color: #880000 } /* Name.Constant */
|
||||
body .nd { color: #AA22FF } /* Name.Decorator */
|
||||
body .ni { color: #999999; font-weight: bold } /* Name.Entity */
|
||||
body .ne { color: #D2413A; font-weight: bold } /* Name.Exception */
|
||||
body .nf { color: #0000FF } /* Name.Function */
|
||||
body .nl { color: #A0A000 } /* Name.Label */
|
||||
body .nn { color: #0000FF; font-weight: bold } /* Name.Namespace */
|
||||
body .nt { color: #954121; font-weight: bold } /* Name.Tag */
|
||||
body .nv { color: #19469D } /* Name.Variable */
|
||||
body .ow { color: #AA22FF; font-weight: bold } /* Operator.Word */
|
||||
body .w { color: #bbbbbb } /* Text.Whitespace */
|
||||
body .mf { color: #666666 } /* Literal.Number.Float */
|
||||
body .mh { color: #666666 } /* Literal.Number.Hex */
|
||||
body .mi { color: #666666 } /* Literal.Number.Integer */
|
||||
body .mo { color: #666666 } /* Literal.Number.Oct */
|
||||
body .sb { color: #219161 } /* Literal.String.Backtick */
|
||||
body .sc { color: #219161 } /* Literal.String.Char */
|
||||
body .sd { color: #219161; font-style: italic } /* Literal.String.Doc */
|
||||
body .s2 { color: #219161 } /* Literal.String.Double */
|
||||
body .se { color: #BB6622; font-weight: bold } /* Literal.String.Escape */
|
||||
body .sh { color: #219161 } /* Literal.String.Heredoc */
|
||||
body .si { color: #BB6688; font-weight: bold } /* Literal.String.Interpol */
|
||||
body .sx { color: #954121 } /* Literal.String.Other */
|
||||
body .sr { color: #BB6688 } /* Literal.String.Regex */
|
||||
body .s1 { color: #219161 } /* Literal.String.Single */
|
||||
body .ss { color: #19469D } /* Literal.String.Symbol */
|
||||
body .bp { color: #954121 } /* Name.Builtin.Pseudo */
|
||||
body .vc { color: #19469D } /* Name.Variable.Class */
|
||||
body .vg { color: #19469D } /* Name.Variable.Global */
|
||||
body .vi { color: #19469D } /* Name.Variable.Instance */
|
||||
body .il { color: #666666 } /* Literal.Number.Integer.Long */
|
||||
100
source/renderer/__init__.html
Normal file
100
source/renderer/__init__.html
Normal file
@@ -0,0 +1,100 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>__init__.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>__init__.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">MapRenderer</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">map</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">map</span> <span class="o">=</span> <span class="nb">map</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">render</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">pass</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filename</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="s">'Not implemented yet'</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">preview</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">raise</span> <span class="s">'Not implemented yet'</span>
|
||||
|
||||
|
||||
<span class="kn">from</span> <span class="nn">svg</span> <span class="kn">import</span> <span class="n">SvgRenderer</span>
|
||||
<span class="kn">from</span> <span class="nn">kml</span> <span class="kn">import</span> <span class="n">KmlRenderer</span>
|
||||
|
||||
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">'MapRenderer'</span><span class="p">,</span> <span class="s">'SvgRenderer'</span><span class="p">,</span> <span class="s">'KmlRenderer'</span><span class="p">]</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
272
source/renderer/kml.html
Normal file
272
source/renderer/kml.html
Normal file
@@ -0,0 +1,272 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>kml.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>kml.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">kartograph.renderer</span> <span class="kn">import</span> <span class="n">MapRenderer</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.errors</span> <span class="kn">import</span> <span class="n">KartographError</span>
|
||||
<span class="kn">from</span> <span class="nn">pykml.factory</span> <span class="kn">import</span> <span class="n">KML_ElementMaker</span> <span class="k">as</span> <span class="n">KML</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">KmlRenderer</span><span class="p">(</span><span class="n">MapRenderer</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">render</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">_init_kml_canvas</span><span class="p">()</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">_store_layers_kml</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filename</span><span class="p">):</span>
|
||||
<span class="n">outfile</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s">'w'</span><span class="p">)</span>
|
||||
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">etree</span>
|
||||
<span class="n">outfile</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">etree</span><span class="o">.</span><span class="n">tostring</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">kml</span><span class="p">,</span> <span class="n">pretty_print</span><span class="o">=</span><span class="bp">True</span><span class="p">))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">preview</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'tmp.kml'</span><span class="p">)</span>
|
||||
<span class="kn">from</span> <span class="nn">subprocess</span> <span class="kn">import</span> <span class="n">call</span>
|
||||
<span class="n">call</span><span class="p">([</span><span class="s">"open"</span><span class="p">,</span> <span class="s">"tmp.kml"</span><span class="p">])</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_init_kml_canvas</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">kml</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">kml</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">Document</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">name</span><span class="p">(</span><span class="s">'kartograph map'</span><span class="p">)</span>
|
||||
<span class="p">)</span>
|
||||
<span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>store features in kml (projected to WGS84 latlon)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_store_layers_kml</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">from</span> <span class="nn">pykml.factory</span> <span class="kn">import</span> <span class="n">KML_ElementMaker</span> <span class="k">as</span> <span class="n">KML</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">layer</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">layers</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">features</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">continue</span> <span class="c"># ignore empty layers</span>
|
||||
<span class="n">g</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">Folder</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">name</span><span class="p">(</span><span class="nb">id</span><span class="p">)</span>
|
||||
<span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">feat</span> <span class="ow">in</span> <span class="n">layer</span><span class="o">.</span><span class="n">features</span><span class="p">:</span>
|
||||
<span class="n">g</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_render_feature</span><span class="p">(</span><span class="n">feat</span><span class="p">,</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">]))</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">kml</span><span class="o">.</span><span class="n">Document</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">g</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_render_feature</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">feature</span><span class="p">,</span> <span class="n">attributes</span><span class="o">=</span><span class="p">[]):</span>
|
||||
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_render_geometry</span><span class="p">(</span><span class="n">feature</span><span class="o">.</span><span class="n">geometry</span><span class="p">)</span>
|
||||
|
||||
<span class="n">pm</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">Placemark</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">name</span><span class="p">(</span><span class="nb">unicode</span><span class="p">(</span><span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">[</span><span class="n">attributes</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="s">'src'</span><span class="p">]])),</span>
|
||||
<span class="n">path</span>
|
||||
<span class="p">)</span>
|
||||
|
||||
<span class="n">xt</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">ExtendedData</span><span class="p">()</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">cfg</span> <span class="ow">in</span> <span class="n">attributes</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'src'</span> <span class="ow">in</span> <span class="n">cfg</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'src'</span><span class="p">]</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">:</span>
|
||||
<span class="k">continue</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>raise KartographError(('attribute not found "%s"'%cfg['src']))</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">val</span> <span class="o">=</span> <span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">[</span><span class="n">cfg</span><span class="p">[</span><span class="s">'src'</span><span class="p">]]</span>
|
||||
<span class="kn">import</span> <span class="nn">unicodedata</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
|
||||
<span class="n">val</span> <span class="o">=</span> <span class="nb">unicode</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">errors</span><span class="o">=</span><span class="s">'ignore'</span><span class="p">)</span>
|
||||
<span class="n">val</span> <span class="o">=</span> <span class="n">unicodedata</span><span class="o">.</span><span class="n">normalize</span><span class="p">(</span><span class="s">'NFKD'</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s">'ascii'</span><span class="p">,</span> <span class="s">'ignore'</span><span class="p">)</span>
|
||||
<span class="n">xt</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">KML</span><span class="o">.</span><span class="n">Data</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">value</span><span class="p">(</span><span class="nb">unicode</span><span class="p">(</span><span class="n">val</span><span class="p">)),</span>
|
||||
<span class="n">name</span><span class="o">=</span><span class="n">cfg</span><span class="p">[</span><span class="s">'tgt'</span><span class="p">]</span>
|
||||
<span class="p">))</span>
|
||||
<span class="k">elif</span> <span class="s">'where'</span> <span class="ow">in</span> <span class="n">cfg</span><span class="p">:</span>
|
||||
<span class="n">src</span> <span class="o">=</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'where'</span><span class="p">]</span>
|
||||
<span class="n">tgt</span> <span class="o">=</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'set'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">cfg</span><span class="p">[</span><span class="s">'equals'</span><span class="p">])</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">cfg</span><span class="p">[</span><span class="s">'to'</span><span class="p">]):</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'attributes: "equals" and "to" arrays must be of same length'</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">cfg</span><span class="p">[</span><span class="s">'equals'</span><span class="p">])):</span>
|
||||
<span class="k">if</span> <span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">[</span><span class="n">src</span><span class="p">]</span> <span class="o">==</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'equals'</span><span class="p">][</span><span class="n">i</span><span class="p">]:</span>
|
||||
<span class="n">xt</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">KML</span><span class="o">.</span><span class="n">Data</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">value</span><span class="p">(</span><span class="n">cfg</span><span class="p">[</span><span class="s">'to'</span><span class="p">][</span><span class="n">i</span><span class="p">]),</span>
|
||||
<span class="n">name</span><span class="o">=</span><span class="n">tgt</span>
|
||||
<span class="p">))</span>
|
||||
<span class="n">pm</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">xt</span><span class="p">)</span>
|
||||
|
||||
<span class="k">return</span> <span class="n">pm</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_render_geometry</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geometry</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span><span class="p">,</span> <span class="n">MultiPolygon</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geometry</span><span class="p">,</span> <span class="p">(</span><span class="n">Polygon</span><span class="p">,</span> <span class="n">MultiPolygon</span><span class="p">)):</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_render_polygon</span><span class="p">(</span><span class="n">geometry</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'kml-renderer is not fully implemented yet'</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
<p>renders a Polygon or MultiPolygon as KML node</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_render_polygon</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">geoms</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">geometry</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">geometry</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">geometry</span><span class="p">]</span>
|
||||
|
||||
<span class="n">kml_polys</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">geom</span> <span class="ow">in</span> <span class="n">geoms</span><span class="p">:</span>
|
||||
<span class="n">poly</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">Polygon</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">tesselate</span><span class="p">(</span><span class="s">"1"</span><span class="p">)</span>
|
||||
<span class="p">)</span>
|
||||
<span class="n">outer</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">outerBoundaryIs</span><span class="p">()</span>
|
||||
<span class="n">coords</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">geom</span><span class="o">.</span><span class="n">exterior</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">coords</span> <span class="o">+=</span> <span class="s">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="n">pt</span><span class="p">))</span> <span class="o">+</span> <span class="s">' '</span>
|
||||
<span class="n">outer</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">KML</span><span class="o">.</span><span class="n">LinearRing</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">coordinates</span><span class="p">(</span><span class="n">coords</span><span class="p">)</span>
|
||||
<span class="p">))</span>
|
||||
<span class="n">poly</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">outer</span><span class="p">)</span>
|
||||
<span class="n">inner</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">innerBoundaryIs</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="n">hole</span> <span class="ow">in</span> <span class="n">geom</span><span class="o">.</span><span class="n">interiors</span><span class="p">:</span>
|
||||
<span class="n">coords</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">hole</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">coords</span> <span class="o">+=</span> <span class="s">','</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="nb">str</span><span class="p">,</span> <span class="n">pt</span><span class="p">))</span> <span class="o">+</span> <span class="s">' '</span>
|
||||
<span class="n">inner</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">KML</span><span class="o">.</span><span class="n">LinearRing</span><span class="p">(</span>
|
||||
<span class="n">KML</span><span class="o">.</span><span class="n">coordinates</span><span class="p">(</span><span class="n">coords</span><span class="p">)</span>
|
||||
<span class="p">))</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">inner</span><span class="p">)</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="n">poly</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">inner</span><span class="p">)</span>
|
||||
<span class="n">kml_polys</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">poly</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">kml_polys</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">kml_polys</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="n">multigeometry</span> <span class="o">=</span> <span class="n">KML</span><span class="o">.</span><span class="n">MultiGeometry</span><span class="p">()</span>
|
||||
<span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">kml_polys</span><span class="p">:</span>
|
||||
<span class="n">multigeometry</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">multigeometry</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
525
source/renderer/svg.html
Normal file
525
source/renderer/svg.html
Normal file
@@ -0,0 +1,525 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>svg.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>svg.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">kartograph.renderer</span> <span class="kn">import</span> <span class="n">MapRenderer</span>
|
||||
<span class="kn">from</span> <span class="nn">kartograph.errors</span> <span class="kn">import</span> <span class="n">KartographError</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>This script contains everything that is needed by Kartograph to finally
|
||||
render the processed maps into SVG files.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
<p>The SVG renderer is based on xml.dom.minidom.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">xml.dom</span> <span class="kn">import</span> <span class="n">minidom</span>
|
||||
<span class="kn">from</span> <span class="nn">xml.dom.minidom</span> <span class="kn">import</span> <span class="n">parse</span>
|
||||
<span class="kn">import</span> <span class="nn">re</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">SvgRenderer</span><span class="p">(</span><span class="n">MapRenderer</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>The render() method prepares a new empty SVG document and
|
||||
stores all the layer features into SVG groups.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">render</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="bp">self</span><span class="o">.</span><span class="n">_init_svg_doc</span><span class="p">()</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">_store_layers_to_svg</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_init_svg_doc</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>Load width and height of the map view
|
||||
We add two pixels to the height to ensure that
|
||||
the map fits.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">w</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">view</span><span class="o">.</span><span class="n">width</span>
|
||||
<span class="n">h</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">view</span><span class="o">.</span><span class="n">height</span> <span class="o">+</span> <span class="mi">2</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>SvgDocument is a handy wrapper around xml.dom.minidom. It is defined below.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">svg</span> <span class="o">=</span> <span class="n">SvgDocument</span><span class="p">(</span>
|
||||
<span class="n">width</span><span class="o">=</span><span class="s">'</span><span class="si">%d</span><span class="s">px'</span> <span class="o">%</span> <span class="n">w</span><span class="p">,</span>
|
||||
<span class="n">height</span><span class="o">=</span><span class="s">'</span><span class="si">%d</span><span class="s">px'</span> <span class="o">%</span> <span class="n">h</span><span class="p">,</span>
|
||||
<span class="n">viewBox</span><span class="o">=</span><span class="s">'0 0 </span><span class="si">%d</span><span class="s"> </span><span class="si">%d</span><span class="s">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">w</span><span class="p">,</span> <span class="n">h</span><span class="p">),</span>
|
||||
<span class="n">enable_background</span><span class="o">=</span><span class="s">'new 0 0 </span><span class="si">%d</span><span class="s"> </span><span class="si">%d</span><span class="s">'</span> <span class="o">%</span> <span class="p">(</span><span class="n">w</span><span class="p">,</span> <span class="n">h</span><span class="p">),</span>
|
||||
<span class="n">style</span><span class="o">=</span><span class="s">'stroke-linejoin: round; stroke:#000; fill:#f6f3f0;'</span><span class="p">)</span>
|
||||
|
||||
<span class="n">defs</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'defs'</span><span class="p">,</span> <span class="n">svg</span><span class="o">.</span><span class="n">root</span><span class="p">)</span>
|
||||
<span class="n">style</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'style'</span><span class="p">,</span> <span class="n">defs</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="s">'text/css'</span><span class="p">)</span>
|
||||
<span class="n">css</span> <span class="o">=</span> <span class="s">'path { fill-rule: evenodd; }</span><span class="se">\n</span><span class="s">#context path { fill: #eee; stroke: #bbb; } '</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">cdata</span><span class="p">(</span><span class="n">css</span><span class="p">,</span> <span class="n">style</span><span class="p">)</span>
|
||||
<span class="n">metadata</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'metadata'</span><span class="p">,</span> <span class="n">svg</span><span class="o">.</span><span class="n">root</span><span class="p">)</span>
|
||||
<span class="n">views</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'views'</span><span class="p">,</span> <span class="n">metadata</span><span class="p">)</span>
|
||||
<span class="n">view</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'view'</span><span class="p">,</span> <span class="n">views</span><span class="p">,</span>
|
||||
<span class="n">padding</span><span class="o">=</span><span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'padding'</span><span class="p">]),</span> <span class="n">w</span><span class="o">=</span><span class="n">w</span><span class="p">,</span> <span class="n">h</span><span class="o">=</span><span class="n">h</span><span class="p">)</span>
|
||||
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'proj'</span><span class="p">,</span> <span class="n">view</span><span class="p">,</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">proj</span><span class="o">.</span><span class="n">attrs</span><span class="p">())</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'bbox'</span><span class="p">,</span> <span class="n">view</span><span class="p">,</span>
|
||||
<span class="n">x</span><span class="o">=</span><span class="nb">round</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">src_bbox</span><span class="o">.</span><span class="n">left</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span>
|
||||
<span class="n">y</span><span class="o">=</span><span class="nb">round</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">src_bbox</span><span class="o">.</span><span class="n">top</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span>
|
||||
<span class="n">w</span><span class="o">=</span><span class="nb">round</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">src_bbox</span><span class="o">.</span><span class="n">width</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span>
|
||||
<span class="n">h</span><span class="o">=</span><span class="nb">round</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">src_bbox</span><span class="o">.</span><span class="n">height</span><span class="p">,</span> <span class="mi">2</span><span class="p">))</span>
|
||||
|
||||
<span class="n">ll</span> <span class="o">=</span> <span class="p">[</span><span class="o">-</span><span class="mi">180</span><span class="p">,</span> <span class="o">-</span><span class="mi">90</span><span class="p">,</span> <span class="mi">180</span><span class="p">,</span> <span class="mi">90</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'mode'</span><span class="p">]</span> <span class="o">==</span> <span class="s">"bbox"</span><span class="p">:</span>
|
||||
<span class="n">ll</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'bounds'</span><span class="p">][</span><span class="s">'data'</span><span class="p">]</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'llbbox'</span><span class="p">,</span> <span class="n">view</span><span class="p">,</span>
|
||||
<span class="n">lon0</span><span class="o">=</span><span class="n">ll</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">lon1</span><span class="o">=</span><span class="n">ll</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span>
|
||||
<span class="n">lat0</span><span class="o">=</span><span class="n">ll</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">lat1</span><span class="o">=</span><span class="n">ll</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">svg</span> <span class="o">=</span> <span class="n">svg</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>store features in svg</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_store_layers_to_svg</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">svg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">svg</span>
|
||||
<span class="k">for</span> <span class="n">layer</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">layers</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">features</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">"ignoring empty layer"</span><span class="p">,</span> <span class="n">layer</span><span class="o">.</span><span class="n">id</span>
|
||||
<span class="k">continue</span> <span class="c"># ignore empty layers</span>
|
||||
<span class="n">g</span> <span class="o">=</span> <span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'g'</span><span class="p">,</span> <span class="n">svg</span><span class="o">.</span><span class="n">root</span><span class="p">,</span> <span class="nb">id</span><span class="o">=</span><span class="n">layer</span><span class="o">.</span><span class="n">id</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">feat</span> <span class="ow">in</span> <span class="n">layer</span><span class="o">.</span><span class="n">features</span><span class="p">:</span>
|
||||
<span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_render_feature</span><span class="p">(</span><span class="n">feat</span><span class="p">,</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'attributes'</span><span class="p">])</span>
|
||||
<span class="k">if</span> <span class="n">node</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">g</span><span class="o">.</span><span class="n">appendChild</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">"feature.to_svg is None"</span><span class="p">,</span> <span class="n">feat</span>
|
||||
<span class="k">if</span> <span class="s">'styles'</span> <span class="ow">in</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">:</span>
|
||||
<span class="k">for</span> <span class="n">prop</span> <span class="ow">in</span> <span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'styles'</span><span class="p">]:</span>
|
||||
<span class="n">g</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="n">prop</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">layer</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'styles'</span><span class="p">][</span><span class="n">prop</span><span class="p">]))</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_render_feature</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">feature</span><span class="p">,</span> <span class="n">attributes</span><span class="o">=</span><span class="p">[]):</span>
|
||||
<span class="n">node</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_render_geometry</span><span class="p">(</span><span class="n">feature</span><span class="o">.</span><span class="n">geometry</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">node</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">None</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">cfg</span> <span class="ow">in</span> <span class="n">attributes</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'src'</span> <span class="ow">in</span> <span class="n">cfg</span><span class="p">:</span>
|
||||
<span class="n">tgt</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="s">'(\W|_)+'</span><span class="p">,</span> <span class="s">'-'</span><span class="p">,</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'tgt'</span><span class="p">]</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
|
||||
<span class="k">if</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'src'</span><span class="p">]</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">:</span>
|
||||
<span class="k">continue</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>raise KartographError(('attribute not found "%s"'%cfg['src']))</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">val</span> <span class="o">=</span> <span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">[</span><span class="n">cfg</span><span class="p">[</span><span class="s">'src'</span><span class="p">]]</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="nb">float</span><span class="p">)):</span>
|
||||
<span class="n">val</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
|
||||
<span class="n">node</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'data-'</span> <span class="o">+</span> <span class="n">tgt</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">tgt</span> <span class="o">==</span> <span class="s">"id"</span><span class="p">:</span>
|
||||
<span class="n">node</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'id'</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span>
|
||||
|
||||
<span class="k">elif</span> <span class="s">'where'</span> <span class="ow">in</span> <span class="n">cfg</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
<p>can be used to replace attributes...</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">src</span> <span class="o">=</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'where'</span><span class="p">]</span>
|
||||
<span class="n">tgt</span> <span class="o">=</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'set'</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">cfg</span><span class="p">[</span><span class="s">'equals'</span><span class="p">])</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">cfg</span><span class="p">[</span><span class="s">'to'</span><span class="p">]):</span>
|
||||
<span class="k">raise</span> <span class="n">KartographError</span><span class="p">(</span><span class="s">'attributes: "equals" and "to" arrays must be of same length'</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">cfg</span><span class="p">[</span><span class="s">'equals'</span><span class="p">])):</span>
|
||||
<span class="k">if</span> <span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">[</span><span class="n">src</span><span class="p">]</span> <span class="o">==</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'equals'</span><span class="p">][</span><span class="n">i</span><span class="p">]:</span>
|
||||
<span class="n">node</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'data-'</span> <span class="o">+</span> <span class="n">tgt</span><span class="p">,</span> <span class="n">cfg</span><span class="p">[</span><span class="s">'to'</span><span class="p">][</span><span class="n">i</span><span class="p">])</span>
|
||||
|
||||
<span class="k">if</span> <span class="s">'__color__'</span> <span class="ow">in</span> <span class="n">feature</span><span class="o">.</span><span class="n">props</span><span class="p">:</span>
|
||||
<span class="n">node</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'fill'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">props</span><span class="p">[</span><span class="s">'__color__'</span><span class="p">])</span>
|
||||
<span class="k">return</span> <span class="n">node</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-14'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-14'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_render_geometry</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geometry</span><span class="p">):</span>
|
||||
<span class="kn">from</span> <span class="nn">shapely.geometry</span> <span class="kn">import</span> <span class="n">Polygon</span><span class="p">,</span> <span class="n">MultiPolygon</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">geometry</span><span class="p">,</span> <span class="p">(</span><span class="n">Polygon</span><span class="p">,</span> <span class="n">MultiPolygon</span><span class="p">)):</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_render_polygon</span><span class="p">(</span><span class="n">geometry</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-15'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-15'>#</a>
|
||||
</div>
|
||||
<p>constructs a svg representation of a polygon</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">_render_polygon</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">geometry</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-16'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-16'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">_round</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">map</span><span class="o">.</span><span class="n">options</span><span class="p">[</span><span class="s">'export'</span><span class="p">][</span><span class="s">'round'</span><span class="p">]</span>
|
||||
<span class="n">path_str</span> <span class="o">=</span> <span class="s">""</span>
|
||||
<span class="k">if</span> <span class="n">_round</span> <span class="ow">is</span> <span class="bp">False</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'</span><span class="si">%f</span><span class="s">,</span><span class="si">%f</span><span class="s">'</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'%.'</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">_round</span><span class="p">)</span> <span class="o">+</span> <span class="s">'f'</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="n">fmt</span> <span class="o">+</span> <span class="s">','</span> <span class="o">+</span> <span class="n">fmt</span>
|
||||
|
||||
<span class="n">geoms</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">geometry</span><span class="p">,</span> <span class="s">'geoms'</span><span class="p">)</span> <span class="ow">and</span> <span class="n">geometry</span><span class="o">.</span><span class="n">geoms</span> <span class="ow">or</span> <span class="p">[</span><span class="n">geometry</span><span class="p">]</span>
|
||||
<span class="k">for</span> <span class="n">polygon</span> <span class="ow">in</span> <span class="n">geoms</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">polygon</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="k">for</span> <span class="n">ring</span> <span class="ow">in</span> <span class="p">[</span><span class="n">polygon</span><span class="o">.</span><span class="n">exterior</span><span class="p">]</span> <span class="o">+</span> <span class="nb">list</span><span class="p">(</span><span class="n">polygon</span><span class="o">.</span><span class="n">interiors</span><span class="p">):</span>
|
||||
<span class="n">cont_str</span> <span class="o">=</span> <span class="s">""</span>
|
||||
<span class="n">kept</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">ring</span><span class="o">.</span><span class="n">coords</span><span class="p">:</span>
|
||||
<span class="n">kept</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">kept</span><span class="p">)</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span>
|
||||
<span class="k">continue</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">kept</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="n">cont_str</span> <span class="o">==</span> <span class="s">""</span><span class="p">:</span>
|
||||
<span class="n">cont_str</span> <span class="o">=</span> <span class="s">"M"</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">cont_str</span> <span class="o">+=</span> <span class="s">"L"</span>
|
||||
<span class="n">cont_str</span> <span class="o">+=</span> <span class="n">fmt</span> <span class="o">%</span> <span class="n">pt</span>
|
||||
<span class="n">cont_str</span> <span class="o">+=</span> <span class="s">"Z "</span>
|
||||
<span class="n">path_str</span> <span class="o">+=</span> <span class="n">cont_str</span>
|
||||
<span class="k">if</span> <span class="n">path_str</span> <span class="o">==</span> <span class="s">""</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">None</span>
|
||||
<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">svg</span><span class="o">.</span><span class="n">node</span><span class="p">(</span><span class="s">'path'</span><span class="p">,</span> <span class="n">d</span><span class="o">=</span><span class="n">path_str</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">path</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-17'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-17'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filename</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">svg</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-18'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-18'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">preview</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">svg</span><span class="o">.</span><span class="n">preview</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-19'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-19'>#</a>
|
||||
</div>
|
||||
<h2>SvgDocument</h2>
|
||||
<p>SVGDocument is a handy wrapper around xml.dom.minidom which allows us
|
||||
to quickly build XML structures. It is largely inspired by the SVG class
|
||||
of the <a href="http://code.google.com/p/svgfig/">svgfig</a> project, which was
|
||||
used by one of the earlier versions of Kartograph.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-20'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-20'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">SvgDocument</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-21'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-21'>#</a>
|
||||
</div>
|
||||
<p>Of course, we need to create and XML document with all this
|
||||
boring SVG header stuff added to it.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
|
||||
<span class="n">imp</span> <span class="o">=</span> <span class="n">minidom</span><span class="o">.</span><span class="n">getDOMImplementation</span><span class="p">(</span><span class="s">''</span><span class="p">)</span>
|
||||
<span class="n">dt</span> <span class="o">=</span> <span class="n">imp</span><span class="o">.</span><span class="n">createDocumentType</span><span class="p">(</span><span class="s">'svg'</span><span class="p">,</span>
|
||||
<span class="s">'-//W3C//DTD SVG 1.1//EN'</span><span class="p">,</span>
|
||||
<span class="s">'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">doc</span> <span class="o">=</span> <span class="n">imp</span><span class="o">.</span><span class="n">createDocument</span><span class="p">(</span><span class="s">'http://www.w3.org/2000/svg'</span><span class="p">,</span> <span class="s">'svg'</span><span class="p">,</span> <span class="n">dt</span><span class="p">)</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">root</span> <span class="o">=</span> <span class="n">svg</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">doc</span><span class="o">.</span><span class="n">getElementsByTagName</span><span class="p">(</span><span class="s">'svg'</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'xmlns'</span><span class="p">,</span> <span class="s">'http://www.w3.org/2000/svg'</span><span class="p">)</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'version'</span><span class="p">,</span> <span class="s">'1.1'</span><span class="p">)</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="s">'xmlns:xlink'</span><span class="p">,</span> <span class="s">'http://www.w3.org/1999/xlink'</span><span class="p">)</span>
|
||||
<span class="n">_add_attrs</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">root</span><span class="p">,</span> <span class="n">kwargs</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-22'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-22'>#</a>
|
||||
</div>
|
||||
<p>This is the magic of SvgDocument. Instead of having to do appendChild()
|
||||
and addAttribute() for every node we create, we just call svgdoc.node()
|
||||
which is smart enough to append itself to the parent if we specify one,
|
||||
and also sets all attributes we pass as keyword arguments.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">parent</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
|
||||
<span class="n">el</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">doc</span><span class="o">.</span><span class="n">createElement</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
|
||||
<span class="n">_add_attrs</span><span class="p">(</span><span class="n">el</span><span class="p">,</span> <span class="n">kwargs</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">parent</span><span class="o">.</span><span class="n">appendChild</span><span class="p">(</span><span class="n">el</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">el</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-23'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-23'>#</a>
|
||||
</div>
|
||||
<p>Sometimes we also need a <[CDATA]> block, for instance if we embed
|
||||
CSS code in the SVG document.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">cdata</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">parent</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="n">cd</span> <span class="o">=</span> <span class="n">minidom</span><span class="o">.</span><span class="n">CDATASection</span><span class="p">()</span>
|
||||
<span class="n">cd</span><span class="o">.</span><span class="n">data</span> <span class="o">=</span> <span class="n">data</span>
|
||||
<span class="k">if</span> <span class="n">parent</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">parent</span><span class="o">.</span><span class="n">appendChild</span><span class="p">(</span><span class="n">cd</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">cd</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-24'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-24'>#</a>
|
||||
</div>
|
||||
<p>Here we finally write the SVG file, and we're brave enough
|
||||
to try to write it in Unicode.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">outfile</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">outfile</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
|
||||
<span class="n">outfile</span> <span class="o">=</span> <span class="nb">open</span><span class="p">(</span><span class="n">outfile</span><span class="p">,</span> <span class="s">'w'</span><span class="p">)</span>
|
||||
<span class="n">raw</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">doc</span><span class="o">.</span><span class="n">toxml</span><span class="p">()</span>
|
||||
<span class="k">try</span><span class="p">:</span>
|
||||
<span class="n">raw</span> <span class="o">=</span> <span class="n">raw</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s">'utf-8'</span><span class="p">)</span>
|
||||
<span class="k">except</span><span class="p">:</span>
|
||||
<span class="k">print</span> <span class="s">'warning: could not encode to unicode'</span>
|
||||
|
||||
<span class="n">outfile</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">raw</span><span class="p">)</span>
|
||||
<span class="n">outfile</span><span class="o">.</span><span class="n">close</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-25'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-25'>#</a>
|
||||
</div>
|
||||
<p>Don't blame me if you don't have a command-line shortcut to
|
||||
simply the best free browser of the world.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">preview</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">'tmp.svg'</span><span class="p">)</span>
|
||||
<span class="kn">from</span> <span class="nn">subprocess</span> <span class="kn">import</span> <span class="n">call</span>
|
||||
<span class="n">call</span><span class="p">([</span><span class="s">"firefox"</span><span class="p">,</span> <span class="s">"tmp.svg"</span><span class="p">])</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-26'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-26'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">tostring</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">doc</span><span class="o">.</span><span class="n">toxml</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-27'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-27'>#</a>
|
||||
</div>
|
||||
<p>This is an artifact of an older version of Kartograph, but
|
||||
maybe we'll need it later. It will load an SVG document from
|
||||
a file.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="nd">@staticmethod</span>
|
||||
<span class="k">def</span> <span class="nf">load</span><span class="p">(</span><span class="n">filename</span><span class="p">):</span>
|
||||
<span class="n">svg</span> <span class="o">=</span> <span class="n">SvgDocument</span><span class="p">()</span>
|
||||
<span class="n">dom</span> <span class="o">=</span> <span class="n">parse</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">doc</span> <span class="o">=</span> <span class="n">dom</span>
|
||||
<span class="n">svg</span><span class="o">.</span><span class="n">root</span> <span class="o">=</span> <span class="n">dom</span><span class="o">.</span><span class="n">getElementsByTagName</span><span class="p">(</span><span class="s">'svg'</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
|
||||
<span class="k">return</span> <span class="n">svg</span>
|
||||
|
||||
|
||||
<span class="k">def</span> <span class="nf">_add_attrs</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">attrs</span><span class="p">):</span>
|
||||
<span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">attrs</span><span class="p">:</span>
|
||||
<span class="n">node</span><span class="o">.</span><span class="n">setAttribute</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">attrs</span><span class="p">[</span><span class="n">key</span><span class="p">]))</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
85
source/simplify/__init__.html
Normal file
85
source/simplify/__init__.html
Normal file
@@ -0,0 +1,85 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>__init__.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>__init__.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">'create_point_store'</span><span class="p">,</span> <span class="s">'unify_polygon'</span><span class="p">,</span> <span class="s">'unify_polygons'</span><span class="p">,</span> <span class="s">'simplify_lines'</span><span class="p">]</span>
|
||||
|
||||
<span class="kn">from</span> <span class="nn">unify</span> <span class="kn">import</span> <span class="o">*</span>
|
||||
<span class="kn">from</span> <span class="nn">distance</span> <span class="kn">import</span> <span class="n">simplify_distance</span>
|
||||
<span class="kn">from</span> <span class="nn">douglas_peucker</span> <span class="kn">import</span> <span class="n">simplify_douglas_peucker</span>
|
||||
<span class="kn">from</span> <span class="nn">visvalingam</span> <span class="kn">import</span> <span class="n">simplify_visvalingam_whyatt</span>
|
||||
|
||||
|
||||
<span class="n">simplification_methods</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">()</span>
|
||||
<span class="n">simplification_methods</span><span class="p">[</span><span class="s">'distance'</span><span class="p">]</span> <span class="o">=</span> <span class="n">simplify_distance</span>
|
||||
<span class="n">simplification_methods</span><span class="p">[</span><span class="s">'douglas-peucker'</span><span class="p">]</span> <span class="o">=</span> <span class="n">simplify_douglas_peucker</span>
|
||||
<span class="n">simplification_methods</span><span class="p">[</span><span class="s">'visvalingam-whyatt'</span><span class="p">]</span> <span class="o">=</span> <span class="n">simplify_visvalingam_whyatt</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>simplifies a set of lines</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">simplify_lines</span><span class="p">(</span><span class="n">lines</span><span class="p">,</span> <span class="n">method</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">simplify</span> <span class="o">=</span> <span class="n">simplification_methods</span><span class="p">[</span><span class="n">method</span><span class="p">]</span>
|
||||
<span class="n">out</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">lines</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>remove duplicate points from line</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">unique</span> <span class="o">=</span> <span class="p">[</span><span class="n">line</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">line</span><span class="p">)):</span>
|
||||
<span class="k">if</span> <span class="n">line</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">!=</span> <span class="n">line</span><span class="p">[</span><span class="n">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]:</span>
|
||||
<span class="n">unique</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">line</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
|
||||
<span class="n">simplify</span><span class="p">(</span><span class="n">unique</span><span class="p">,</span> <span class="n">params</span><span class="p">)</span>
|
||||
<span class="n">out</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">unique</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">out</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
108
source/simplify/distance.html
Normal file
108
source/simplify/distance.html
Normal file
@@ -0,0 +1,108 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>distance.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>distance.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>simplifies a line segment using a very simple algorithm that checks the distance
|
||||
to the last non-deleted point. the algorithm operates on line segments.</p>
|
||||
<p>in order to preserve topology of the original polygons the algorithm
|
||||
- never removes the first or the last point of a line segment
|
||||
- flags all points as simplified after processing (so it won't be processed twice)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">simplify_distance</span><span class="p">(</span><span class="n">points</span><span class="p">,</span> <span class="n">dist</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">dist_sq</span> <span class="o">=</span> <span class="n">dist</span> <span class="o">*</span> <span class="n">dist</span>
|
||||
<span class="n">n</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">points</span><span class="p">)</span>
|
||||
|
||||
<span class="n">kept</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">deleted</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="k">if</span> <span class="n">n</span> <span class="o"><</span> <span class="mi">4</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">points</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">n</span><span class="p">):</span>
|
||||
<span class="n">pt</span> <span class="o">=</span> <span class="n">points</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">i</span> <span class="o">==</span> <span class="mi">0</span> <span class="ow">or</span> <span class="n">i</span> <span class="o">==</span> <span class="n">n</span> <span class="o">-</span> <span class="mi">1</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>never remove first or last point of line</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">pt</span><span class="o">.</span><span class="n">simplified</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
<span class="n">lpt</span> <span class="o">=</span> <span class="n">pt</span>
|
||||
<span class="n">kept</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">d</span> <span class="o">=</span> <span class="p">(</span><span class="n">pt</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">lpt</span><span class="o">.</span><span class="n">x</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">pt</span><span class="o">.</span><span class="n">x</span> <span class="o">-</span> <span class="n">lpt</span><span class="o">.</span><span class="n">x</span><span class="p">)</span> <span class="o">+</span> <span class="p">(</span><span class="n">pt</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">lpt</span><span class="o">.</span><span class="n">y</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">pt</span><span class="o">.</span><span class="n">y</span> <span class="o">-</span> <span class="n">lpt</span><span class="o">.</span><span class="n">y</span><span class="p">)</span> <span class="c"># compute distance to last point</span>
|
||||
<span class="k">if</span> <span class="n">pt</span><span class="o">.</span><span class="n">simplified</span> <span class="ow">or</span> <span class="n">d</span> <span class="o">></span> <span class="n">dist_sq</span><span class="p">:</span> <span class="c"># if point already handled or distance exceeds threshold..</span>
|
||||
<span class="n">kept</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">pt</span><span class="p">)</span> <span class="c"># ..keep the point</span>
|
||||
<span class="n">lpt</span> <span class="o">=</span> <span class="n">pt</span>
|
||||
<span class="k">else</span><span class="p">:</span> <span class="c"># otherwise remove it</span>
|
||||
<span class="n">deleted</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="n">pt</span><span class="o">.</span><span class="n">deleted</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
<span class="n">pt</span><span class="o">.</span><span class="n">simplified</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">kept</span><span class="p">)</span> <span class="o"><</span> <span class="mi">4</span><span class="p">:</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">points</span><span class="p">:</span>
|
||||
<span class="n">pt</span><span class="o">.</span><span class="n">deleted</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="k">return</span> <span class="n">points</span>
|
||||
|
||||
<span class="k">return</span> <span class="n">kept</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>print 'kept %d deleted %d' % (kept, deleted)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
221
source/simplify/douglas_peucker.html
Normal file
221
source/simplify/douglas_peucker.html
Normal file
@@ -0,0 +1,221 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>douglas_peucker.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>douglas_peucker.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>simplifies a line segment using the Douglas-Peucker algorithm.</p>
|
||||
<p>taken from
|
||||
http://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm#Pseudocode</p>
|
||||
<p>in order to preserve topology of the original polygons the algorithm
|
||||
- never removes the first or the last point of a line segment
|
||||
- flags all points as simplified after processing (so it won't be processed twice)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">simplify_douglas_peucker</span><span class="p">(</span><span class="n">points</span><span class="p">,</span> <span class="n">epsilon</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">n</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">points</span><span class="p">)</span>
|
||||
<span class="n">kept</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">if</span> <span class="n">n</span> <span class="o"><</span> <span class="mi">4</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">points</span> <span class="c"># skip short lines</span>
|
||||
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">points</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">simplified</span><span class="p">:</span>
|
||||
<span class="n">_douglas_peucker</span><span class="p">(</span><span class="n">points</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">n</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">epsilon</span><span class="p">)</span>
|
||||
|
||||
<span class="k">return</span> <span class="n">kept</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>print 'kept %d deleted %d' % (kept, deleted)</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>inner part of Douglas-Peucker algorithm, called recursively</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_douglas_peucker</span><span class="p">(</span><span class="n">points</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">end</span><span class="p">,</span> <span class="n">epsilon</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">dmax</span> <span class="o">=</span> <span class="mi">0</span>
|
||||
<span class="n">index</span> <span class="o">=</span> <span class="mi">0</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>Find the point with the maximum distance</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">start</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">end</span><span class="p">):</span>
|
||||
<span class="n">x1</span><span class="p">,</span> <span class="n">y1</span> <span class="o">=</span> <span class="n">points</span><span class="p">[</span><span class="n">start</span><span class="p">]</span>
|
||||
<span class="n">x2</span><span class="p">,</span> <span class="n">y2</span> <span class="o">=</span> <span class="n">points</span><span class="p">[</span><span class="n">end</span><span class="p">]</span>
|
||||
<span class="k">if</span> <span class="n">x1</span> <span class="o">==</span> <span class="n">x2</span> <span class="ow">and</span> <span class="n">y1</span> <span class="o">==</span> <span class="n">y2</span><span class="p">:</span>
|
||||
<span class="k">return</span>
|
||||
<span class="n">x3</span><span class="p">,</span> <span class="n">y3</span> <span class="o">=</span> <span class="n">points</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
|
||||
<span class="n">d</span> <span class="o">=</span> <span class="n">_min_distance</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span> <span class="n">y1</span><span class="p">,</span> <span class="n">x2</span><span class="p">,</span> <span class="n">y2</span><span class="p">,</span> <span class="n">x3</span><span class="p">,</span> <span class="n">y3</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">d</span> <span class="o">></span> <span class="n">dmax</span><span class="p">:</span>
|
||||
<span class="n">index</span> <span class="o">=</span> <span class="n">i</span>
|
||||
<span class="n">dmax</span> <span class="o">=</span> <span class="n">d</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>If max distance is greater than epsilon, recursively simplify</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">dmax</span> <span class="o">>=</span> <span class="n">epsilon</span> <span class="ow">and</span> <span class="n">start</span> <span class="o"><</span> <span class="n">index</span> <span class="o"><</span> <span class="n">end</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>recursivly call</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">_douglas_peucker</span><span class="p">(</span><span class="n">points</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">epsilon</span><span class="p">)</span>
|
||||
<span class="n">_douglas_peucker</span><span class="p">(</span><span class="n">points</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">end</span><span class="p">,</span> <span class="n">epsilon</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>remove any point but the first and last</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span> <span class="o">+</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<span class="n">points</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">deleted</span> <span class="o">=</span> <span class="n">i</span> <span class="o">==</span> <span class="n">start</span> <span class="ow">or</span> <span class="n">i</span> <span class="o">==</span> <span class="n">end</span>
|
||||
<span class="n">points</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="o">.</span><span class="n">simplified</span> <span class="o">=</span> <span class="bp">True</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
<p>the perpendicular distance from a point (x3,y3) to the line from (x1,y1) to (x2,y2)
|
||||
taken from http://local.wasp.uwa.edu.au/~pbourke/geometry/pointline/</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_min_distance</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span> <span class="n">y1</span><span class="p">,</span> <span class="n">x2</span><span class="p">,</span> <span class="n">y2</span><span class="p">,</span> <span class="n">x3</span><span class="p">,</span> <span class="n">y3</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">d</span> <span class="o">=</span> <span class="n">_dist</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span> <span class="n">y1</span><span class="p">,</span> <span class="n">x2</span><span class="p">,</span> <span class="n">y2</span><span class="p">)</span>
|
||||
<span class="n">u</span> <span class="o">=</span> <span class="p">(</span><span class="n">x3</span> <span class="o">-</span> <span class="n">x1</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">x2</span> <span class="o">-</span> <span class="n">x1</span><span class="p">)</span> <span class="o">+</span> <span class="p">(</span><span class="n">y3</span> <span class="o">-</span> <span class="n">y1</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">y2</span> <span class="o">-</span> <span class="n">y1</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="n">d</span> <span class="o">*</span> <span class="n">d</span><span class="p">)</span>
|
||||
<span class="n">x</span> <span class="o">=</span> <span class="n">x1</span> <span class="o">+</span> <span class="n">u</span> <span class="o">*</span> <span class="p">(</span><span class="n">x2</span> <span class="o">-</span> <span class="n">x1</span><span class="p">)</span>
|
||||
<span class="n">y</span> <span class="o">=</span> <span class="n">y1</span> <span class="o">+</span> <span class="n">u</span> <span class="o">*</span> <span class="p">(</span><span class="n">y2</span> <span class="o">-</span> <span class="n">y1</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">_dist</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">x3</span><span class="p">,</span> <span class="n">y3</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
<p>eucledian distance between two points</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_dist</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span> <span class="n">y1</span><span class="p">,</span> <span class="n">x2</span><span class="p">,</span> <span class="n">y2</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-13'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-13'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="kn">import</span> <span class="nn">math</span>
|
||||
<span class="n">dx</span> <span class="o">=</span> <span class="n">x2</span> <span class="o">-</span> <span class="n">x1</span>
|
||||
<span class="n">dy</span> <span class="o">=</span> <span class="n">y2</span> <span class="o">-</span> <span class="n">y1</span>
|
||||
<span class="k">return</span> <span class="n">math</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">dx</span> <span class="o">*</span> <span class="n">dx</span> <span class="o">+</span> <span class="n">dy</span> <span class="o">*</span> <span class="n">dy</span><span class="p">)</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
133
source/simplify/mpoint.html
Normal file
133
source/simplify/mpoint.html
Normal file
@@ -0,0 +1,133 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>mpoint.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>mpoint.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>Point class used for polygon simplification</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">class</span> <span class="nc">MPoint</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">x</span> <span class="o">=</span> <span class="n">x</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">y</span> <span class="o">=</span> <span class="n">y</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">simplified</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">deleted</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">keep</span> <span class="o">=</span> <span class="bp">False</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">features</span> <span class="o">=</span> <span class="nb">set</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">isDeletable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">keep</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">simplified</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">three</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">False</span>
|
||||
<span class="k">return</span> <span class="bp">True</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="s">'Pt(</span><span class="si">%.2f</span><span class="s">,</span><span class="si">%.2f</span><span class="s">)'</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="k">return</span> <span class="mi">2</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="n">key</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">x</span>
|
||||
<span class="k">if</span> <span class="n">key</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">y</span>
|
||||
<span class="k">raise</span> <span class="ne">IndexError</span><span class="p">()</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">def</span> <span class="nf">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
|
||||
<span class="k">if</span> <span class="n">key</span> <span class="o">==</span> <span class="s">"deleted"</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="bp">True</span>
|
||||
<span class="k">return</span> <span class="bp">False</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
152
source/simplify/unify.html
Normal file
152
source/simplify/unify.html
Normal file
@@ -0,0 +1,152 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>unify.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>unify.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
<p>the whole point of the unification step is to convert all points into unique MPoint instances</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="kn">from</span> <span class="nn">mpoint</span> <span class="kn">import</span> <span class="n">MPoint</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
<p>creates a new point_store</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">create_point_store</span><span class="p">():</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">point_store</span> <span class="o">=</span> <span class="p">{</span><span class="s">'kept'</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="s">'removed'</span><span class="p">:</span> <span class="mi">0</span><span class="p">}</span>
|
||||
<span class="k">return</span> <span class="n">point_store</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">unify_rings</span><span class="p">(</span><span class="n">rings</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">feature</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
|
||||
<span class="n">out</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">ring</span> <span class="ow">in</span> <span class="n">rings</span><span class="p">:</span>
|
||||
<span class="n">out</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">unify_ring</span><span class="p">(</span><span class="n">ring</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="o">=</span><span class="n">precision</span><span class="p">,</span> <span class="n">feature</span><span class="o">=</span><span class="n">feature</span><span class="p">))</span>
|
||||
<span class="k">return</span> <span class="n">out</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>Replaces duplicate points with MPoint instances</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">unify_ring</span><span class="p">(</span><span class="n">ring</span><span class="p">,</span> <span class="n">point_store</span><span class="p">,</span> <span class="n">precision</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">feature</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">out_ring</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="n">lptid</span> <span class="o">=</span> <span class="s">''</span>
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">ring</span><span class="p">:</span>
|
||||
<span class="k">if</span> <span class="s">'deleted'</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">pt</span><span class="p">:</span>
|
||||
<span class="n">pt</span> <span class="o">=</span> <span class="n">MPoint</span><span class="p">(</span><span class="n">pt</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">pt</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span> <span class="c"># eventually convert to MPoint</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>generate hash for point</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="n">precision</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'%'</span> <span class="o">+</span> <span class="n">precision</span> <span class="o">+</span> <span class="s">'f-%'</span> <span class="o">+</span> <span class="n">precision</span> <span class="o">+</span> <span class="s">'f'</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">fmt</span> <span class="o">=</span> <span class="s">'</span><span class="si">%f</span><span class="s">-</span><span class="si">%f</span><span class="s">'</span>
|
||||
<span class="n">pid</span> <span class="o">=</span> <span class="n">fmt</span> <span class="o">%</span> <span class="p">(</span><span class="n">pt</span><span class="o">.</span><span class="n">x</span><span class="p">,</span> <span class="n">pt</span><span class="o">.</span><span class="n">y</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">pid</span> <span class="o">==</span> <span class="n">lptid</span><span class="p">:</span>
|
||||
<span class="k">continue</span> <span class="c"># skip double points</span>
|
||||
<span class="n">lptid</span> <span class="o">=</span> <span class="n">pid</span>
|
||||
<span class="k">if</span> <span class="n">pid</span> <span class="ow">in</span> <span class="n">point_store</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>load existing point from point store</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">point</span> <span class="o">=</span> <span class="n">point_store</span><span class="p">[</span><span class="n">pid</span><span class="p">]</span>
|
||||
<span class="n">point_store</span><span class="p">[</span><span class="s">'removed'</span><span class="p">]</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">point</span> <span class="o">=</span> <span class="n">pt</span>
|
||||
<span class="n">point_store</span><span class="p">[</span><span class="s">'kept'</span><span class="p">]</span> <span class="o">+=</span> <span class="mi">1</span>
|
||||
<span class="n">point_store</span><span class="p">[</span><span class="n">pid</span><span class="p">]</span> <span class="o">=</span> <span class="n">pt</span>
|
||||
|
||||
<span class="n">point</span><span class="o">.</span><span class="n">features</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">feature</span><span class="p">)</span>
|
||||
<span class="n">out_ring</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">point</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">out_ring</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
218
source/simplify/visvalingam.html
Normal file
218
source/simplify/visvalingam.html
Normal file
@@ -0,0 +1,218 @@
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="content-type" content="text/html;charset=utf-8">
|
||||
<title>visvalingam.py</title>
|
||||
<link rel="stylesheet" href="../pycco.css">
|
||||
</head>
|
||||
<body>
|
||||
<div id="background"></div>
|
||||
<div id='container'>
|
||||
<div class='section'>
|
||||
<div class='docs'><h1>visvalingam.py</h1></div>
|
||||
</div>
|
||||
<div class='clearall'>
|
||||
<div class='section' id='section-0'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-0'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-1'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-1'>#</a>
|
||||
</div>
|
||||
<p>Visvalingam-Whyatt simplification</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">simplify_visvalingam_whyatt</span><span class="p">(</span><span class="n">points</span><span class="p">,</span> <span class="n">tolerance</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-2'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-2'>#</a>
|
||||
</div>
|
||||
<p>mplementation borrowed from @migurski:
|
||||
ttps://github.com/migurski/Bloch/blob/master/Bloch/<strong>init</strong>.py#L133</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">points</span><span class="p">)</span> <span class="o"><</span> <span class="mi">3</span><span class="p">:</span>
|
||||
<span class="k">return</span>
|
||||
<span class="k">if</span> <span class="n">points</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">simplified</span><span class="p">:</span>
|
||||
<span class="k">return</span>
|
||||
|
||||
<span class="n">min_area</span> <span class="o">=</span> <span class="n">tolerance</span> <span class="o">**</span> <span class="mi">2</span>
|
||||
|
||||
<span class="n">pts</span> <span class="o">=</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">points</span><span class="p">))</span> <span class="c"># pts stores an index of all non-deleted points</span>
|
||||
|
||||
<span class="k">while</span> <span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">></span> <span class="mi">4</span><span class="p">:</span>
|
||||
<span class="n">preserved</span><span class="p">,</span> <span class="n">popped</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(),</span> <span class="p">[]</span>
|
||||
<span class="n">areas</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">pts</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||||
<span class="n">x1</span><span class="p">,</span> <span class="n">y1</span> <span class="o">=</span> <span class="n">points</span><span class="p">[</span><span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]]</span>
|
||||
<span class="n">x2</span><span class="p">,</span> <span class="n">y2</span> <span class="o">=</span> <span class="n">points</span><span class="p">[</span><span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]]</span>
|
||||
<span class="n">x3</span><span class="p">,</span> <span class="n">y3</span> <span class="o">=</span> <span class="n">points</span><span class="p">[</span><span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]]</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-3'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-3'>#</a>
|
||||
</div>
|
||||
<p>compute and store triangle area</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">areas</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">_tri_area</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span> <span class="n">y1</span><span class="p">,</span> <span class="n">x2</span><span class="p">,</span> <span class="n">y2</span><span class="p">,</span> <span class="n">x3</span><span class="p">,</span> <span class="n">y3</span><span class="p">),</span> <span class="n">i</span><span class="p">))</span>
|
||||
|
||||
<span class="n">areas</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">areas</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="ow">not</span> <span class="n">areas</span> <span class="ow">or</span> <span class="n">areas</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="o">></span> <span class="n">min_area</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-4'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-4'>#</a>
|
||||
</div>
|
||||
<p>there's nothing to be done</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">points</span><span class="p">:</span>
|
||||
<span class="n">pt</span><span class="o">.</span><span class="n">simplified</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
<span class="k">break</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-5'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-5'>#</a>
|
||||
</div>
|
||||
<p>Reduce any segments that makes a triangle whose area is below
|
||||
the minimum threshold, starting with the smallest and working up.
|
||||
Mark segments to be preserved until the next iteration.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">for</span> <span class="p">(</span><span class="n">area</span><span class="p">,</span> <span class="n">i</span><span class="p">)</span> <span class="ow">in</span> <span class="n">areas</span><span class="p">:</span>
|
||||
|
||||
<span class="k">if</span> <span class="n">area</span> <span class="o">></span> <span class="n">min_area</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-6'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-6'>#</a>
|
||||
</div>
|
||||
<p>there won't be any more points to remove.</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">break</span>
|
||||
|
||||
<span class="k">if</span> <span class="n">i</span> <span class="o">-</span> <span class="mi">1</span> <span class="ow">in</span> <span class="n">preserved</span> <span class="ow">or</span> <span class="n">i</span> <span class="o">+</span> <span class="mi">1</span> <span class="ow">in</span> <span class="n">preserved</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-7'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-7'>#</a>
|
||||
</div>
|
||||
<p>the current segment is too close to a previously-preserved one.
|
||||
print "-pre", preserved</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">continue</span>
|
||||
|
||||
<span class="n">points</span><span class="p">[</span><span class="n">pts</span><span class="p">[</span><span class="n">i</span><span class="p">]]</span><span class="o">.</span><span class="n">deleted</span> <span class="o">=</span> <span class="bp">True</span>
|
||||
<span class="n">popped</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">i</span><span class="p">)</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-8'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-8'>#</a>
|
||||
</div>
|
||||
<p>make sure that the adjacent points</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">preserved</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">i</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
|
||||
<span class="n">preserved</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">popped</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-9'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-9'>#</a>
|
||||
</div>
|
||||
<p>no points removed, so break out of loop</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">break</span>
|
||||
|
||||
<span class="n">popped</span> <span class="o">=</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">popped</span><span class="p">,</span> <span class="n">reverse</span><span class="o">=</span><span class="bp">True</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="n">popped</span><span class="p">:</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-10'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-10'>#</a>
|
||||
</div>
|
||||
<p>remove point from index list</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="n">pts</span> <span class="o">=</span> <span class="n">pts</span><span class="p">[:</span><span class="n">i</span><span class="p">]</span> <span class="o">+</span> <span class="n">pts</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="mi">1</span><span class="p">:]</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">pt</span> <span class="ow">in</span> <span class="n">points</span><span class="p">:</span>
|
||||
<span class="n">pt</span><span class="o">.</span><span class="n">simplified</span> <span class="o">=</span> <span class="bp">True</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-11'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-11'>#</a>
|
||||
</div>
|
||||
<p>computes the area of a triangle given by three points
|
||||
implementation taken from:
|
||||
http://www.btinternet.com/~se16/hgb/triangle.htm</p>
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre><span class="k">def</span> <span class="nf">_tri_area</span><span class="p">(</span><span class="n">x1</span><span class="p">,</span> <span class="n">y1</span><span class="p">,</span> <span class="n">x2</span><span class="p">,</span> <span class="n">y2</span><span class="p">,</span> <span class="n">x3</span><span class="p">,</span> <span class="n">y3</span><span class="p">):</span></pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
<div class='section' id='section-12'>
|
||||
<div class='docs'>
|
||||
<div class='octowrap'>
|
||||
<a class='octothorpe' href='#section-12'>#</a>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
<div class='code'>
|
||||
<div class="highlight"><pre> <span class="k">return</span> <span class="nb">abs</span><span class="p">((</span><span class="n">x2</span><span class="o">*</span><span class="n">y1</span><span class="o">-</span><span class="n">x1</span><span class="o">*</span><span class="n">y2</span><span class="p">)</span><span class="o">+</span><span class="p">(</span><span class="n">x3</span><span class="o">*</span><span class="n">y2</span><span class="o">-</span><span class="n">x2</span><span class="o">*</span><span class="n">y3</span><span class="p">)</span><span class="o">+</span><span class="p">(</span><span class="n">x1</span><span class="o">*</span><span class="n">y3</span><span class="o">-</span><span class="n">x3</span><span class="o">*</span><span class="n">y1</span><span class="p">))</span><span class="o">/</span><span class="mf">2.0</span>
|
||||
|
||||
</pre></div>
|
||||
</div>
|
||||
</div>
|
||||
<div class='clearall'></div>
|
||||
</div>
|
||||
</body>
|
||||
Reference in New Issue
Block a user