The ImageLab.java file in the "User Guide" for Geotools, if compiled "as it
is", gives the error ...."variable 'style' not found" at the line:
renderer.paint( g, coverage, style );
....we removed this error by feeding this code before "renderer.paint( g,
coverage, style ); " :-
//---------------------------------------------------------------------------------------------
StyleFactory factory =
CommonFactoryFinder.getStyleFactory(null);
StyleBuilder sb = new StyleBuilder(factory);
ColorMap cm = sb.createColorMap(
new String[]{"0", "255"},
new double[]{0, 255},
new Color[]{ new Color(0, 0, 0),new Color(255, 255, 255)}
,ColorMap.TYPE_RAMP);
RasterSymbolizer sym = sb.createRasterSymbolizer(cm, 1.0);
Style style = sb.createStyle(sym);
//---------------------------------------------------------------------------------------------
But then we got the error :
"The method paint(Graphics2D, GridCoverage2D, RasterSymbolizer) in the type
GridCoverageRenderer is not applicable for the arguments (Graphics2D,
GridCoverage2D, Style)"
So then we added "sym" as a parameter to paint method instead of "style":
//----------------------------------------------------------------------
renderer.paint( g, coverage, sym /**style**/);
//----------------------------------------------------------------------
and now it builds and compiles alright, but instead of displaying the world
image it gives the following error in the display pane:
"Band number 3 is not valid"
....any suggestions? please help!
-Kedar
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