Hi dear everyone, especially Michael Bedward,
I´m trying to build upon your
org.geotools.demo.coverage.WritableGridDemo.java example, because I
need to create my own Arc Grid Coverage. In your example you only
invoke writableCov.show(); when finished. I want to modify the values
of the raster and then save them in an ArcGrid coverage. The problem
is, if I want to have a more realistic coverage, with X and Y
dimensions different (not a square) when I go to save that coverage,
using :
// writableCov.show();
String coveragePath= "covargeResult.asc";
File outasc = new File(lsaResult);
if (outasc.exists())
outasc.delete();
ArcGridWriter agw;
agw = new ArcGridWriter(outasc);
agw.write(writableCov, null);
It will show the following exception:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5
at
com.sun.media.jai.iterator.WritableRandomIterFallback.makeCurrentWritable(WritableRandomIterFallback.java:33)
at
com.sun.media.jai.iterator.WritableRandomIterFallback.setSample(WritableRandomIterFallback.java:59)
at
edu.unimelb.climatechange.lsa.WritableGridCoverage2D.flushCache(WritableGridCoverage2D.java:240)
at
edu.unimelb.climatechange.lsa.WritableGridCoverage2D.getRenderedImage(WritableGridCoverage2D.java:135)
at
org.geotools.gce.arcgrid.ArcGridWriter.writeGridCoverage(ArcGridWriter.java:250)
at org.geotools.gce.arcgrid.ArcGridWriter.write(ArcGridWriter.java:506)
I tried to look into the code and debugging it, thinking it was just a
matter of setting somewhere the right dimensions to avoid this
ArrayIndexOutOfBoundsException, but I can't fin way to do it. I know
the ArcGridWriter can receive Parameters, like:
ParameterValueGroup params = agw.getFormat().getWriteParameters();
params.parameter("Compressed").setValue(compressOutput);
but I can't find one for dimensions, or I couldn't find an example in
the internet that does.
Thank you very much for any light you can shed in here, best regards
Marcos Nino-Ruiz
Computer and Systems engineer
CRC for Spatial Information
The University of Melbourne
Victoria 3010
Australia
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