mapnik/tests/data/good_maps/text_rotation.xml

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=merc +lon_0=0 +lat_ts=0 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs" background-color="steelblue">

    <Style name="labels">
        <Rule title="foo">
            <Filter>([name]='CHILE')</Filter>
            <TextSymbolizer face_name="DejaVu Sans Book" size="15" halo_radius="1"
            name="'45˚ angle'" orientation="45" />
        </Rule>
        <Rule title="foo">
            <Filter>([name]='Australia')</Filter>
            <TextSymbolizer face_name="DejaVu Sans Book" size="15" halo_radius="1"
            name="'- 45˚ angle'" orientation="-45" />
        </Rule>
        <Rule title="foo1">
            <Filter>([name]='Brazil')</Filter>
            <TextSymbolizer face_name="DejaVu Sans Book" size="15" halo_radius="1"
            name="'90˚ angle'" orientation="90" />
        </Rule>
        <Rule title="foo">
            <Filter>([name]='Mongolia')</Filter>
            <TextSymbolizer face_name="DejaVu Sans Book" size="15" halo_radius="1"
            name="'- 90˚ angle'" orientation="-90" />
        </Rule>
        <Rule title="foo">
            <Filter>([name]='Sudan')</Filter>
            <TextSymbolizer face_name="DejaVu Sans Book" size="15" halo_radius="1"
            name="'180˚ angle'" orientation="180" />
        </Rule>
        <Rule title="foo">
            <Filter>([name]='United States')</Filter>
            <TextSymbolizer face_name="DejaVu Sans Book" size="15" 
            name="'no rotation of text'"  halo_radius="1" />
        </Rule>
        <Rule title="foo">
            <ElseFilter />
            <TextSymbolizer face_name="DejaVu Sans Book" size="15" 
            name="[name]"  halo_radius="1" />
        </Rule>
    </Style>

    <Layer name="point" srs="+init=epsg:4326">
        <StyleName>labels</StyleName>
        <Datasource>
            <Parameter name="extent">-180,-70,180,70</Parameter>
            <Parameter name="file">../sqlite/qgis_spatiallite.sqlite</Parameter>
            <Parameter name="geometry_field">geometry</Parameter>
            <Parameter name="key_field">pkuid</Parameter>
            <Parameter name="table">point</Parameter>
            <Parameter name="type">sqlite</Parameter>
            <Parameter name="use_spatial_index">1</Parameter>
            <Parameter name="wkb_format">spatialite</Parameter>
        </Datasource>
    </Layer>
    
</Map>