Raster Symbolizers are supposed to do the trick, if at all possible try
the latest GeoTools 2.3.x release as GridCoverage support has received a
*lot* of attention in terms of quality and performance.
Remember to check the pom.xml file to look for contact information for
the module maintainer as well :-)
Jody
>
> Hi list,
>
> I am trying to change the colors used to display an ArcInfo ASCII
> Grid. I create a style using the code below. However, no matter what
> values I use for the labels, quantities and colors arrays, the grid is
> displayed in red, green and blue. Does anyone know how the values in
> the grid can be mapped to a color?
>
> We are using GeoTools 2.2.0.
>
> Kind regards,
>
> Bas Vanmeulebrouk.
>
> private Style CreateRasterStyle() {
> /*
> * Create a Style to display the Grid
> */
> StyleBuilder stylebuilder = new StyleBuilder();
>
> String[] labels = new String[] {"a", "b", "c", "d", "e"};
> double[] quantities = new double[] {100, 200, 300, 400, 500};
> Color[] colors = new Color[] {new Color(0, 255, 0), new
> Color(255, 255, 0),
> new Color(255, 127, 0), new Color(191, 127, 63),
> new Color(255, 255, 255)};
>
>
> ColorMap cm = stylebuilder.createColorMap(labels, quantities,
> colors, ColorMap.TYPE_VALUES);
> RasterSymbolizer rastersymbolizer =
> stylebuilder.createRasterSymbolizer(cm, 1);
> return stylebuilder.createStyle(rastersymbolizer);
> }
>
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