Add test for text displacement.
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Dave
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demo/data/test/displacement.dbf
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demo/data/test/displacement.dbf
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demo/data/test/displacement.shp
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demo/data/test/displacement.shp
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demo/data/test/displacement.shx
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demo/data/test/displacement.shx
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demo/data/test/raw/displacement.gfs
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demo/data/test/raw/displacement.gfs
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<GMLFeatureClassList>
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<GMLFeatureClass>
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<Name>displacement</Name>
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<ElementPath>displacement</ElementPath>
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<DatasetSpecificInfo>
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<FeatureCount>1</FeatureCount>
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<ExtentXMin>1.00000</ExtentXMin>
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<ExtentXMax>2.00000</ExtentXMax>
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<ExtentYMin>1.00000</ExtentYMin>
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<ExtentYMax>5.00000</ExtentYMax>
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</DatasetSpecificInfo>
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<PropertyDefn>
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<Name>NAME</Name>
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<ElementPath>NAME</ElementPath>
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<Type>String</Type>
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<Width>0</Width>
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</PropertyDefn>
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<PropertyDefn>
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<Name>CLASS</Name>
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<ElementPath>CLASS</ElementPath>
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<Type>String</Type>
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<Width>0</Width>
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</PropertyDefn>
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</GMLFeatureClass>
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</GMLFeatureClassList>
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129
demo/data/test/raw/displacement.gml
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demo/data/test/raw/displacement.gml
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<?xml version="1.0" encoding="utf-8" ?>
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<ogr:FeatureCollection
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="displacement.xsd"
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xmlns:ogr="http://ogr.maptools.org/"
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xmlns:gml="http://www.opengis.net/gml">
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<gml:boundedBy>
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<gml:Box>
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<gml:coord><gml:X>0</gml:X><gml:Y>0</gml:Y></gml:coord>
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<gml:coord><gml:X>13</gml:X><gml:Y>-13</gml:Y></gml:coord>
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</gml:Box>
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</gml:boundedBy>
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<gml:featureMember>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>1,-3 1,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>1,-2 2,-1</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>2,-1 3,-1</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>3,-1 4,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>4,-2 4,-3</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>4,-3 3,-4</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>3,-4 2,-4</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>2,-4 1,-3</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>CLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>5,-3 6,-4</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>6,-4 7,-4</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>7,-4 8,-3</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>8,-3 8,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>8,-2 7,-1</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>7,-1 6,-1</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>6,-1 5,-2</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>5,-2 5,-3</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Road</ogr:NAME>
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<ogr:CLASS>ANTICLOCKWISE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>
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1,-6.5 2,-5.5 3,-5 4,-5 5,-5.5 6,-6.5
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</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Long Road Name To Go Around The Whole Curve!</ogr:NAME>
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<ogr:CLASS>CURVE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>
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1,-7 2,-8 3,-8.5 4,-8.5 5,-8 6,-7
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</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Long Road Name To Go Around The Whole Curve!</ogr:NAME>
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<ogr:CLASS>CURVE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>
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3,-8.5 2,-9.5 1.5,-10.5 1.5,-11.5 2,-12.5 3,-13.5
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</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Long Road Name To Go Around The Whole Curve!</ogr:NAME>
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<ogr:CLASS>VERTCURVE</ogr:CLASS>
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</ogr:displacement>
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<ogr:displacement fid="F0">
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<ogr:geometryProperty><gml:LineString><gml:coordinates>
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4,-8.5 5,-9.5 5.5,-10.5 5.5,-11.5 5,-12.5 4,-13.5
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</gml:coordinates></gml:LineString></ogr:geometryProperty>
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<ogr:NAME>Long Road Name To Go Around The Whole Curve!</ogr:NAME>
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<ogr:CLASS>VERTCURVE</ogr:CLASS>
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</ogr:displacement>
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</gml:featureMember>
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</ogr:FeatureCollection>
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36
demo/data/test/raw/displacement.xsd
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demo/data/test/raw/displacement.xsd
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<?xml version="1.0" encoding="UTF-8"?>
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<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0">
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<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengeospatial.net/gml/2.1.2/feature.xsd"/><xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
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<xs:complexType name="FeatureCollectionType">
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<xs:complexContent>
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<xs:extension base="gml:AbstractFeatureCollectionType">
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<xs:attribute name="lockId" type="xs:string" use="optional"/>
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<xs:attribute name="scope" type="xs:string" use="optional"/>
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</xs:extension>
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</xs:complexContent>
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</xs:complexType>
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<xs:element name="displacement" type="ogr:displacement_Type" substitutionGroup="gml:_Feature"/>
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<xs:complexType name="displacement_Type">
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<xs:complexContent>
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<xs:extension base="gml:AbstractFeatureType">
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<xs:sequence>
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<xs:element name="geometryProperty" type="gml:GeometryPropertyType" nillable="true" minOccurs="1" maxOccurs="1"/>
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<xs:element name="NAME" nillable="true" minOccurs="0" maxOccurs="1">
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<xs:simpleType>
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<xs:restriction base="xs:string">
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<xs:maxLength value="60"/>
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</xs:restriction>
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</xs:simpleType>
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</xs:element>
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<xs:element name="CLASS" nillable="true" minOccurs="0" maxOccurs="1">
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<xs:simpleType>
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<xs:restriction base="xs:string">
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<xs:maxLength value="60"/>
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</xs:restriction>
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</xs:simpleType>
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</xs:element>
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</xs:sequence>
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</xs:extension>
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</xs:complexContent>
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</xs:complexType>
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</xs:schema>
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@ -8,3 +8,8 @@ rm -f overlap.shp overlap.shx overlap.dbf
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ogr2ogr -f "ESRI Shapefile" overlap raw/overlap.gml
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mv overlap/* ./
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rmdir overlap
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rm -f displacement.shp displacement.shx displacement.dbf
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ogr2ogr -f "ESRI Shapefile" displacement raw/displacement.gml
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mv displacement/* ./
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rmdir displacement
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83
demo/test/displacement.py
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demo/test/displacement.py
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# $Id: rundemo.py 577 2008-01-03 11:39:10Z artem $
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#
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# This file is part of Mapnik (c++ mapping toolkit)
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# Copyright (C) 2005 Jean-Francois Doyon
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#
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# Mapnik is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Import everything. In this case this is safe, in more complex systems, you
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# will want to be more selective.
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try:
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from mapnik import *
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except:
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print '\n\nThe mapnik library and python bindings must have been compiled and \
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installed successfully before running this script.\n\n'
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raise
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m = Map(690,690,"+proj=latlong +ellps=WGS84")
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m.background = Color(255,100,100,255)
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road_style = Style()
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#Road
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road_rule = Rule()
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road_stroke = Stroke(Color('white'), 1)
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road_stroke.line_cap = line_cap.ROUND_CAP
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road_stroke.line_join = line_join.ROUND_JOIN
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#road_rule.filter = Filter("[CLASS] = 'CROSS'")
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road_rule.symbols.append(LineSymbolizer(road_stroke))
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road_style.rules.append(road_rule);
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#Road text
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text_symbolizer = TextSymbolizer('NAME', 'DejaVu Sans Book', 10, Color('black'))
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text_symbolizer.label_placement=label_placement.LINE_PLACEMENT
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text_symbolizer.minimum_distance = 0
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#text_symbolizer.max_char_angle_delta = 40
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#text_symbolizer.force_odd_labels = 1
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#FIXME: Displacement cannot be set from python so we can't set it here, lol!
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text_symbolizer.label_spacing = 60
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text_symbolizer.label_position_tolerance = 5
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text_symbolizer.avoid_edges = 0
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text_symbolizer.halo_fill = Color('yellow')
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text_symbolizer.halo_radius = 1
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road_rule = Rule()
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#road_rule.filter = Filter("[CLASS] = 'CROSS'")
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road_rule.symbols.append(text_symbolizer)
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road_style.rules.append(road_rule)
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road_layer = Layer('road')
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road_layer.datasource = Shapefile(file='../data/test/displacement')
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m.append_style('road', road_style)
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road_layer.styles.append('road')
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m.layers.append(road_layer)
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# Draw map
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# Set the initial extent of the map.
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m.zoom_to_box(Envelope(0,0,14,-14))
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# Render
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im = Image(m.width,m.height)
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render(m, im)
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# Save image to file
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save_to_file('output.png', 'png',im) # true-colour RGBA
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print "Done\n"
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