Hi,
I'm working on a simple WPS process that subtracts one GridCoverage2D from
another (I hope this code shows up ok). But I can't seem to work out how to
have the SubtractFromConst and Add operations respect the NoData values in
the input GridCoverage2D. I've looked through the Javadocs for the
processors, but can't seem to find anything online. Can anyone suggest
anything I might be missing?
Thanks,
Owen
public GridCoverage2D execute(
@DescribeParameter(name = "coverageA", description = "First
input raster")
GridCoverage2D coverageA,
@DescribeParameter(name = "coverageB", description = "Second
input raster")
GridCoverage2D coverageB,
ProgressListener progressListener)
throws ProcessException {
BaseCoverageAlgebraProcess.checkCompatibleCoverages(coverageA,
coverageB);
final double[] constants = {0};
final ParameterValueGroup subParam =
PROCESSOR.getOperation("SubtractFromConst").getParameters();
subParam.parameter("source").setValue(coverageB);
subParam.parameter("constants").setValue(constants);
final ParameterValueGroup addParam =
PROCESSOR.getOperation("Add").getParameters();
addParam.parameter("source0").setValue(coverageA);
addParam.parameter("source1").setValue((GridCoverage2D)
PROCESSOR.doOperation(subParam));
return (GridCoverage2D) PROCESSOR.doOperation(addParam);
}
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