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Configuration Files Mapnik - Revision history
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Tmitchell: starting page showing mapnik xml and python examples
2008-08-25T00:44:10Z
<p>starting page showing mapnik xml and python examples</p>
<p><b>New page</b></p><div><br />
== Mapnik Python Script for Start-up and Processing ==<br />
<pre><br />
#!/usr/bin/env python<br />
<br />
from mapnik import *<br />
mapfile = "population.xml"<br />
m = Map(1400, 600)<br />
load_map(m, mapfile)<br />
bbox = Envelope(Coord(-180.0, -75.0), Coord(180.0, 90.0))<br />
m.zoom_to_box(bbox) <br />
render_to_file(m, 'world_population.png', 'png')<br />
</pre><br />
<br />
== Mapnik XML Configuration File ==<br />
<pre><br />
<?xml version="1.0" encoding="utf-8"?><br />
<!DOCTYPE Map><br />
<!-- Sample Mapnik XML template by Dane Springmeyer --><br />
<Map bgcolor="white" srs="+proj=latlong +datum=WGS84"><br />
<br />
<Style name="population"><br />
<br />
<Rule><br />
<!-- Built from Seven Class sequential YIGnBu from www.colorbrewer.org --><br />
<!-- Quantile breaks originally from QGIS layer classification --><br />
<Filter>[POP2005] = 0 </Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#ffffcc</CssParameter><br />
</PolygonSymbolizer><br />
<!-- Outlines for Antarctica look good --><br />
<LineSymbolizer><br />
<CssParameter name="stroke">black</CssParameter><br />
<CssParameter name="stroke-width">.1</CssParameter><br />
</LineSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<Filter>[POP2005] &gt; 0 and [POP2005] &lt; 15000</Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#c7e9b4</CssParameter><br />
</PolygonSymbolizer><br />
<!-- Outlines for Antarctica look good --><br />
<LineSymbolizer><br />
<CssParameter name="stroke">black</CssParameter><br />
<CssParameter name="stroke-width">.1</CssParameter><br />
</LineSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<Filter>[POP2005] &gt;= 15000 and [POP2005] &lt; 255000</Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#7fcdbb</CssParameter><br />
</PolygonSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<Filter>[POP2005] &gt;= 255000 and [POP2005] &lt; 1300000</Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#1d91c0</CssParameter><br />
</PolygonSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<Filter>[POP2005] &gt;= 1300000 and [POP2005] &lt; 4320000</Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#41b6c3</CssParameter><br />
</PolygonSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<Filter>[POP2005] &gt;= 4320000 and [POP2005] &lt; 9450000</Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#225ea8</CssParameter><br />
</PolygonSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<Filter>[POP2005] &gt;= 9450000 and [POP2005] &lt; 25650000</Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#225ea8</CssParameter><br />
</PolygonSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<Filter>[POP2005] &gt;= 25650000 and [POP2005] &lt; 1134000000</Filter><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">#122F7F</CssParameter><br />
</PolygonSymbolizer><br />
</Rule><br />
<br />
<Rule><br />
<ElseFilter/> <!-- This will catch all other values - in this case just India and China --><br />
<!-- A dark red polygon fill and black outline is used here to highlight these two countries --><br />
<PolygonSymbolizer><br />
<CssParameter name="fill">darkred</CssParameter><br />
</PolygonSymbolizer><br />
<LineSymbolizer><br />
<CssParameter name="stroke">black</CssParameter><br />
<CssParameter name="stroke-width">.7</CssParameter><br />
</LineSymbolizer><br />
</Rule><br />
<br />
</Style><br />
<br />
<Style name="countries_label"><br />
<Rule><br />
<!-- Only label those countries with over 9 Million People --><br />
<!-- Note: Halo and Fill are reversed to try to make them subtle --><br />
<Filter>[POP2005] &gt;= 4320000 and [POP2005] &lt; 9450000</Filter><br />
<TextSymbolizer name="NAME" face_name="DejaVu Sans Bold" size="7" fill="black" halo_fill= "#DFDBE3" halo_radius="1" wrap_width="20" spacing="5" allow_overlap="false" avoid_edges="false" min_distance="10"/><br />
</Rule><br />
<br />
<Rule><br />
<!-- Only label those countries with over 9 Million People --><br />
<!-- Note: Halo and Fill are reversed to try to make them subtle --><br />
<Filter>[POP2005] &gt;= 9450000 and [POP2005] &lt; 25650000</Filter><br />
<TextSymbolizer name="NAME" face_name="DejaVu Sans Book" size="9" fill="black" halo_fill= "#DFDBE3" halo_radius="1" wrap_width="20" spacing="5" allow_overlap="false" avoid_edges="false" min_distance="10"/><br />
</Rule><br />
<br />
<Rule><br />
<!-- Those with over 25 Million get larger labels --><br />
<Filter>[POP2005] &gt;= 25650000 and [POP2005] &lt; 1134000000</Filter><br />
<TextSymbolizer name="NAME" face_name="DejaVu Sans Book" size="12" fill="white" halo_fill= "#2E2F39" halo_radius="1" wrap_width="20" spacing="5" allow_overlap="false" avoid_edges="true" min_distance="10"/><br />
</Rule><br />
<br />
<Rule><br />
<!-- Those with over 25 Million get larger labels --><br />
<!-- Note: allow_overlap is true here to allow India to sneak through --><br />
<Filter>[POP2005] &gt;= 1134000000</Filter><br />
<TextSymbolizer name="NAME" face_name="DejaVu Sans Book" size="15" fill="white" halo_fill= "black" halo_radius="1" wrap_width="20" spacing="5" allow_overlap="true" avoid_edges="true" min_distance="10"/><br />
</Rule><br />
</Style><br />
<br />
<Layer name="countries" status="on"><br />
<!-- Style order determines layering hierarchy --><br />
<!-- Labels go on top so they are listed second --><br />
<StyleName>population</StyleName><br />
<StyleName>countries_label</StyleName><br />
<Datasource><br />
<Parameter name="type">shape</Parameter><br />
<Parameter name="file">path/to/your/unzipped/TM_WORLD_BORDERS_SIMPL-0.2/TM_WORLD_BORDERS_SIMPL-0.2</Parameter><br />
</Datasource><br />
</Layer><br />
<br />
</Map><br />
</pre></div>
Tmitchell