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69 lines
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69 lines
5.0 KiB
HTML
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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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<link rel="stylesheet" href="../pycco.css">
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<div class='docs'><h1>__init__.py</h1></div>
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<div class='clearall'>
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<div class='section' id='section-0'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-0'>#</a>
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<p>as of version 2.0 kartograph supports multiple import formats</p>
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<ul>
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<li>Shapefile</li>
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<li>KML ? (only polygons and polylines)</li>
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<li>GeoJSON ?</li>
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</ul>
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</div>
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<div class='code'>
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<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>
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<span class="kn">from</span> <span class="nn">shplayer</span> <span class="kn">import</span> <span class="n">ShapefileLayer</span>
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<span class="kn">from</span> <span class="nn">layersource</span> <span class="kn">import</span> <span class="n">LayerSource</span>
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<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>
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<span class="kn">from</span> <span class="nn">kartograph.errors</span> <span class="kn">import</span> <span class="o">*</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-1'>
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<div class='docs'>
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<div class='octowrap'>
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<a class='octothorpe' href='#section-1'>#</a>
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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">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>
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<span class="k">if</span> <span class="s">'src'</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
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<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>
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<span class="k">if</span> <span class="n">src</span> <span class="ow">in</span> <span class="n">cache</span><span class="p">:</span>
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<span class="k">return</span> <span class="n">cache</span><span class="p">[</span><span class="n">src</span><span class="p">]</span>
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<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>
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<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>
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<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>
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<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>
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<span class="k">return</span> <span class="n">src</span>
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<span class="k">else</span><span class="p">:</span>
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<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>
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<span class="k">elif</span> <span class="s">'special'</span> <span class="ow">in</span> <span class="n">layer</span><span class="p">:</span>
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<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>
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<span class="k">return</span> <span class="n">GraticuleLayer</span><span class="p">()</span>
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<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>
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<span class="k">return</span> <span class="n">SeaLayer</span><span class="p">()</span>
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</pre></div>
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</div>
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</div>
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<div class='clearall'></div>
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