mapnik/tests/data/good_maps/interior_point.xml

<Map srs="+init=epsg:4326" background-color="rgb(233,233,233)" minimum-version="0.7.2">

    <Style name="multipolygon_style">
        <Rule>
            <PolygonSymbolizer fill="pink" gamma="0.7"/>
            <LineSymbolizer stroke="darkred"/>
        </Rule>
        <Rule>
            <!-- Text using interior point -->
            <!-- Using normal centroid algorithm -->
            <TextSymbolizer dy="2" placement="interior" face-name="DejaVu Sans Book" halo-radius="2" allow-overlap="true">'interior point'</TextSymbolizer>
            <PointSymbolizer placement="interior" allow-overlap="true"/>
        </Rule>
        <Rule>
            <!-- Text using interior point -->
            <!-- Using normal centroid algorithm -->
            <TextSymbolizer dy="-2" face-name="DejaVu Sans Book" halo-radius="2" allow-overlap="true">'centroid'</TextSymbolizer>
            <PointSymbolizer allow-overlap="true"/>
        </Rule>
    </Style>
    
    <Layer name="multipolygon" srs="+init=epsg:4326">
        <StyleName>multipolygon_style</StyleName>
        <Datasource>
            <Parameter name="type">sqlite</Parameter>
            <Parameter name="file">../sqlite/qgis_spatiallite.sqlite</Parameter>
            <Parameter name="table">multipolygon</Parameter>
            <Parameter name="wkb_format">spatialite</Parameter>
        </Datasource>
    </Layer>
</Map>