[Geotools-gt2-users] Opacity in SVG external graphic

[Piero Campalani]

Hi list,
I am trying to render a semi-opaque icon on my map:

====================================================================
    StyleFactory sf = CommonFactoryFinder.getStyleFactory(GeoTools.
getDefaultHints());
    FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2(GeoTools.
getDefaultHints());
    Graphic graphic = sf.getDefaultGraphic();
    ExternalGraphic eGr = sf.createExternalGraphic(<SVG_URL>,
"image/svg+xml");
    graphic.setOpacity(ff.literal(0.4));
    Symbolizer sym = sf.createPointSymbolizer(graphic, "the_geom");
====================================================================

While using raster graphics (eg. PNGs) the opacity gets set, nothing
happens to a vectorial external graphic.

This is the XML of the descriptor:

====================================================================
<?xml version="1.0" encoding="UTF-8"?>
<sld:UserStyle xmlns="http://www.opengis.net/sld"; xmlns:sld="
http://www.opengis.net/sld"; xmlns:gml="http://www.opengis.net/gml";
xmlns:ogc="http://www.opengis.net/ogc";>
  <sld:Name>Default Styler</sld:Name>
  <sld:FeatureTypeStyle>
    <sld:Name>name</sld:Name>
    <sld:Rule>
      <sld:PointSymbolizer>
        <sld:Geometry>
          <ogc:PropertyName>the_geom</ogc:PropertyName>
        </sld:Geometry>
        <sld:Graphic>
          <sld:ExternalGraphic>
            <sld:OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink";
xlink:type="simple" xlink:href="<SVG_URL>"/>
 <sld:Format>image/svg+xml</sld:Format>

          </sld:ExternalGraphic>
          <sld:Opacity>0.4</sld:Opacity>
          <sld:Size>32.0</sld:Size>
        </sld:Graphic>
      </sld:PointSymbolizer>
    </sld:Rule>
  </sld:FeatureTypeStyle>
</sld:UserStyle>
====================================================================

Is there a limitation in the StreamingRenderer?

Thanks for the help!

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