sld-population

<?xml version="1.0" encoding="UTF-8"?>
<StyledLayerDescriptor version="1.0.0" xmlns="http://www.opengis.net/sld" xmlns:ogc="http://www.opengis.net/ogc"
  xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gml="http://www.opengis.net/gml"
  xsi:schemaLocation="http://www.opengis.net/sld http://schemas.opengis.net/sld/1.0.0/StyledLayerDescriptor.xsd">
  <NamedLayer>
    <Name>USA states population</Name>
    <UserStyle>
      <Name>population</Name>
      <Title>Population in the United States</Title>
      <Abstract>A sample filter that filters the United States into three
        categories of population, drawn in different colors</Abstract>
      <FeatureTypeStyle>
        <Rule>
          <Title>&lt; 2M</Title>
          <ogc:Filter>
            <ogc:PropertyIsLessThan>
             <ogc:PropertyName>PERSONS</ogc:PropertyName>
             <ogc:Literal>2000000</ogc:Literal>
            </ogc:PropertyIsLessThan>
          </ogc:Filter>
          <PolygonSymbolizer>
             <Fill>
                <!-- CssParameters allowed are fill (the color) and fill-opacity -->
                <CssParameter name="fill">#e5f5e0
</CssParameter>
                <CssParameter name="fill-opacity">0.7</CssParameter>
             </Fill>     
          </PolygonSymbolizer>
        </Rule>
        <Rule>
          <Title>2M - 4M</Title>
          <ogc:Filter>
            <ogc:PropertyIsBetween>
              <ogc:PropertyName>PERSONS</ogc:PropertyName>
              <ogc:LowerBoundary>
                <ogc:Literal>2000000</ogc:Literal>
              </ogc:LowerBoundary>
              <ogc:UpperBoundary>
                <ogc:Literal>4000000</ogc:Literal>
              </ogc:UpperBoundary>
            </ogc:PropertyIsBetween>
          </ogc:Filter>
          <PolygonSymbolizer>
             <Fill>
                <!-- CssParameters allowed are fill (the color) and fill-opacity -->
                <CssParameter name="fill">#a1d99b</CssParameter>
                <CssParameter name="fill-opacity">0.7</CssParameter>
             </Fill>     
          </PolygonSymbolizer>
        </Rule>
        <Rule>
          <Title>&gt; 4M</Title>
          <!-- like a linesymbolizer but with a fill too -->
          <ogc:Filter>
            <ogc:PropertyIsGreaterThan>
             <ogc:PropertyName>PERSONS</ogc:PropertyName>
             <ogc:Literal>4000000</ogc:Literal>
            </ogc:PropertyIsGreaterThan>
          </ogc:Filter>
          <PolygonSymbolizer>
             <Fill>
                <!-- CssParameters allowed are fill (the color) and fill-opacity -->
                <CssParameter name="fill">#31a354</CssParameter>
                <CssParameter name="fill-opacity">0.7</CssParameter>
             </Fill>     
          </PolygonSymbolizer>
        </Rule>
        <Rule>
          <Title>Boundary</Title>
          <LineSymbolizer>
            <Stroke>
              <CssParameter name="stroke-width">0.2</CssParameter>
            </Stroke>
          </LineSymbolizer>
          <TextSymbolizer>

            <Label>
              <ogc:PropertyName>STATE_ABBR</ogc:PropertyName>
            </Label>
            <Font>
              <CssParameter name="font-family">DejaVu Sans Condensed</CssParameter>
              <CssParameter name="font-style">Normal</CssParameter>
              <CssParameter name="font-size">12</CssParameter>
            </Font>
            <Font>
              <CssParameter name="font-family">Arial</CssParameter>
              <CssParameter name="font-style">Normal</CssParameter>
              <CssParameter name="font-size">12</CssParameter>
            </Font>
             <Font>
              <CssParameter name="font-family">Helvetica</CssParameter>
              <CssParameter name="font-style">Normal</CssParameter>
              <CssParameter name="font-size">12</CssParameter>
            </Font>
             <Font>
              <CssParameter name="font-family">sans-serif</CssParameter>
              <CssParameter name="font-style">Normal</CssParameter>
              <CssParameter name="font-size">12</CssParameter>
            </Font>
            <LabelPlacement>
              <PointPlacement>
                <AnchorPoint>
                  <AnchorPointX>0.5</AnchorPointX>
                  <AnchorPointY>0.5</AnchorPointY>
                </AnchorPoint>
              </PointPlacement>
            </LabelPlacement>
          </TextSymbolizer>
        </Rule>
     </FeatureTypeStyle>
    </UserStyle>
    </NamedLayer>
</StyledLayerDescriptor>