Hi, I have a question about the ArcGrid reader.
I am trying to test it on subregion reading.
So I create a GeneralParameterValue to pass to the reader like this:
GeneralParameterValue[] readParams = new GeneralParameterValue[1];
Parameter<GridGeometry2D> readGG = new Parameter<GridGeometry2D>(
AbstractGridFormat.READ_GRIDGEOMETRY2D);
GridEnvelope2D gridEnvelope = new GridEnvelope2D(0, 0, width, height);
DirectPosition2D minDp = new DirectPosition2D(west, south);
DirectPosition2D maxDp = new DirectPosition2D(east, north);
Envelope env = new Envelope2D(minDp, maxDp);
readGG.setValue(new GridGeometry2D(gridEnvelope, env));
readParams[0] = readGG;
and pass it to the reader:
ArcGridReader arcGridReader = new ArcGridReader(mapFile);
GridCoverage2D coverage = arcGridReader.read(readParams );
The result I gain is the same as with readParams == null.
I tried to debug into the reader and i found parts that set the
subsampling and resolution stuff, but none that set the sourceregion.
If that was true, then I see why it would not read subregions, but
yeah, I probably am wrong since the reader is well tested.
Open to suggestions,
Cheers,
Andrea
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