Hello,
I want to create a gridcoverage with 3-banded integer array(false color). My
data includes nodata values that are greater that actual max value. How to
create GridCoverage to have the color stretched to min max excluding nodata
values on rendering? I tried the following code but it doesn't work. The image
is still dark for the colors are still stretched including the nodata.
Thanks in advance.
Object buff=...//my integer array
dataType = DataBuffer.TYPE_INT;
WritableRaster raster = RasterFactory.createBandedRaster(dataType,
width, height, band.length, null);
for (int k = 0; k < band.length; k++) {
minValues[k] =...;
maxValues[k] = ...;
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
raster.setSample(x, y, k, Array.getInt(buff, y * width
+ x + k * width * height));
}
}
}
GridCoverageFactory factory = new GridCoverageFactory(null);
GridCoverage2D gc = factory.create(gridname, raster, env, minValues,maxValues,
null, null, null);
NB: I am using geotools 2.4.
Agossa.
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