Hi,
I want to draw a postgis layer (polygon) with a simple style (as well as
an alpha color).
But I always get a cast error. Here is the code, maybe somebody has an
idea ?
Manfred
Error :
java.lang.ClassCastException: java.awt.Color cannot be cast to
java.lang.String
at
org.geotools.renderer.style.SLDStyleFactory.evalToColor(SLDStyleFactory.
java:1447)
at
org.geotools.renderer.style.SLDStyleFactory.getStrokePaint(SLDStyleFacto
ry.java:986)
at
org.geotools.renderer.style.SLDStyleFactory.createLineStyle(SLDStyleFact
ory.java:398)
at
org.geotools.renderer.style.SLDStyleFactory.createStyleInternal(SLDStyle
Factory.java:332)
at
org.geotools.renderer.style.SLDStyleFactory.createStyle(SLDStyleFactory.
java:295)
at
org.geotools.renderer.lite.StreamingRenderer.processSymbolizers(Streamin
gRenderer.java:1730)
at
org.geotools.renderer.lite.StreamingRenderer.process(StreamingRenderer.j
ava:1657)
at
org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRen
derer.java:1601)
at
org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.jav
a:641)
at
org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.jav
a:473)
at com.bg.union.pa.GeoToolsEngine.paint(GeoToolsEngine.java:116)
at
com.bg.union.pa.GeoToolsRenderService.execute(GeoToolsRenderService.java
:23)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)...
First problem based on this code: (no alpha)
StyleBuilder builder = new StyleBuilder();
PolygonSymbolizer symbolizer =
styleFactory.createPolygonSymbolizer();
Stroke stroke = symbolizer.getStroke();
if (stroke == null) {
stroke = builder.createStroke(Color.blue);
symbolizer.setStroke(stroke);
}
stroke.setColor(builder.colorExpression(Color.blue));
Fill fill = symbolizer.getFill();
if (fill == null) {
fill = builder.createFill(Color.blue);
symbolizer.setFill(fill);
}
Rule rule = styleFactory.createRule();
rule.setSymbolizers(new Symbolizer[] { symbolizer });
FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle();
fts.setRules(new Rule[] { rule });
fts.setFeatureTypeName("polygonfeature");
Style style = styleFactory.createStyle();
style.addFeatureTypeStyle(fts);
Second problem (this time with alpha) but the same error message:
PolygonSymbolizer polysym = styleFactory.createPolygonSymbolizer();
Fill myFill = styleFactory.getDefaultFill();
// --- HERE
myFill.setOpacity(filterFactory.literal(0.5));
myFill.setColor(filterFactory.literal("#FFAA00"));
polysym.setFill(myFill);
polysym.setStroke(styleFactory.getDefaultStroke());
Rule rule0 = styleFactory.createRule();
rule0.setSymbolizers(new Symbolizer[]{polysym});
FeatureTypeStyle fts0 = styleFactory.createFeatureTypeStyle(new
Rule[]{rule0});
//fts0.setFeatureTypeName("polygonfeature");
style0 = styleFactory.createStyle();
style0.addFeatureTypeStyle(fts0);
return style0;
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Geotools-gt2-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
