mapnik/tests/visual_tests/styles/text-halo-rasterizer.xml

<Map srs="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0.0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs +over" background-color="steelblue" minimum-version="0.7.2">

    <Style name="labels">
        <Rule>
            <Filter>([id]=0)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-rasterizer="fast"
              halo-radius=".5"
            >
                'fast .5'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=1)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-rasterizer="fast"
              halo-radius="1"
            >
                'fast 1'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=2)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-rasterizer="fast"
              halo-radius="1.5"
            >
                'fast 1.5'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=3)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-rasterizer="fast"
              halo-radius="2.5"
            >
                'fast 2.5'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=4)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-rasterizer="fast"
              halo-radius="4"
            >
                'fast 4'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=5)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-radius=".5"
            >
                'full .5'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=6)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-radius="1"
            >
                'full 1'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=7)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-radius="1.5"
            >
                'full 1.5'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=8)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-radius="2.5"
            >
                'full 2.5'
            </TextSymbolizer>
        </Rule>
        <Rule>
            <Filter>([id]=9)</Filter>
            <TextSymbolizer
              face-name="DejaVu Sans Book"
              size="15"
              halo-radius="4"
            >
                'full 4'
            </TextSymbolizer>
        </Rule>
    </Style>

    <Layer name="point" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
        <StyleName>labels</StyleName>
        <Datasource>
            <Parameter name="type">csv</Parameter>
            <Parameter name="inline">
id,x,y
0,1.5,1
1,1.5,2
2,1.5,3
3,1.5,4
4,1.5,4.5

5,3.5,1
6,3.5,2
7,3.5,3
8,3.5,4
9,3.5,4.5
            </Parameter>
        </Datasource>
    </Layer>
    
    <!-- points to frame data view -->

    <Style name="frame">
        <Rule>
            <PointSymbolizer />
        </Rule>
    </Style>

    <Layer name="frame" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
        <StyleName>frame</StyleName>
        <Datasource>
            <Parameter name="type">csv</Parameter>
            <Parameter name="inline">
x,y
0,0
5,0
0,5
5,5
            </Parameter>
        </Datasource>
    </Layer>
    
</Map>