Stack overflow in Resampler2D
-----------------------------
Key: GEOT-3585
URL: http://jira.codehaus.org/browse/GEOT-3585
Project: GeoTools
Issue Type: Bug
Components: core coverage
Affects Versions: 2.7.1
Reporter: Joshua Portway
I'm getting a stack overflow exception when resampling a GridCoverage2D
Here's the stack trace :
{noformat}
Caused by: java.lang.StackOverflowError
at java.lang.ThreadLocal$ThreadLocalMap.getEntry(ThreadLocal.java:362)
at java.lang.ThreadLocal$ThreadLocalMap.access$000(ThreadLocal.java:242)
at java.lang.ThreadLocal.get(ThreadLocal.java:127)
at
org.geotools.factory.RecursionCheckingHelper.addAndCheck(RecursionCheckingHelper.java:11)
at
org.geotools.factory.FactoryRegistry.usesAcceptableHints(FactoryRegistry.java:545)
at
org.geotools.factory.FactoryRegistry.usesAcceptableHints(FactoryRegistry.java:617)
at
org.geotools.factory.FactoryRegistry.usesAcceptableHints(FactoryRegistry.java:617)
at
org.geotools.factory.FactoryRegistry.isAcceptable(FactoryRegistry.java:504)
at
org.geotools.factory.FactoryRegistry.getServiceImplementation(FactoryRegistry.java:435)
at
org.geotools.factory.FactoryRegistry.getServiceProvider(FactoryRegistry.java:363)
at
org.geotools.factory.FactoryCreator.getServiceProvider(FactoryCreator.java:143)
at
org.geotools.referencing.ReferencingFactoryFinder.getFactory(ReferencingFactoryFinder.java:193)
at
org.geotools.referencing.ReferencingFactoryFinder.getCoordinateOperationFactory(ReferencingFactoryFinder.java:318)
at
org.geotools.coverage.processing.operation.Resampler2D.reproject(Resampler2D.java:410)
at
org.geotools.coverage.processing.operation.Resampler2D.reproject(Resampler2D.java:692)
at
org.geotools.coverage.processing.operation.Resampler2D.reproject(Resampler2D.java:692)
etc...
{noformat}
And this is my code that's calling it :
{code:title=Resample Stack Overflow|borderStyle=solid}
GridCoverage2D alphaCoverage = buildAlphaCoverage(newCoverage, bandNumber);
// isolate the band we're interested in so we don't bother resampling the
entire gridCoverage
// GridCoverage2D singleBand = (GridCoverage2D)
Operations.DEFAULT.selectSampleDimension(newCoverage, new int[]{bandNumber});
// this about about here is because the simple selectSampleDimension commented
method above doesn't work when using the pure java JAI implementation on mac.
urgh.
WritableRaster wr = newCoverage.getRenderedImage().copyData(null);
float[] samples = wr.getSamples(0, 0, wr.getWidth(), wr.getHeight(),
bandNumber, (float[]) null);
DataBuffer buffer = new DataBufferFloat(samples, samples.length);
SampleModel sm = new BandedSampleModel(DataBuffer.TYPE_FLOAT, wr.getWidth(),
wr.getHeight(), 1);
WritableRaster singleBandRaster = WritableRaster.createWritableRaster(sm,
buffer, null);
final GridCoverageFactory fac =
CoverageFactoryFinder.getGridCoverageFactory(null);
GridCoverage2D singleBand = fac.create("single band", singleBandRaster,
newCoverage.getEnvelope());
// resample the incoming data to the resolution of the cached accumulator
coverage
MathTransform2D gridToCRS = accumulator.getGridGeometry().getGridToCRS2D();
GridGeometry2D gg = new GridGeometry2D(PixelInCell.CELL_CENTER, gridToCRS,
envelope, null);
GridCoverage2D resampledData = (GridCoverage2D)
Operations.DEFAULT.resample(singleBand,
accumulator.getCoordinateReferenceSystem(), gg,
Interpolation.getInstance(Interpolation.INTERP_BICUBIC));
GridCoverage2D resampledAlpha = (GridCoverage2D)
Operations.DEFAULT.resample(alphaCoverage,
accumulator.getCoordinateReferenceSystem(), gg,
Interpolation.getInstance(Interpolation.INTERP_BICUBIC));
{code}
the problem seems to be a recursion in a bug workaround in Resampler2D :
{code:title=Problem Recursion}
if (!(new GeneralEnvelope(source).contains(target, true))) {
if (interpolation != null && !(interpolation instanceof
InterpolationNearest)) {
return reproject(sourceCoverage, targetCRS, targetGG, null, hints,
background);
} else {
// If we were already using nearest-neighbor interpolation, force
// usage of WarpAdapter2D instead of WarpAffine. The price will be
// a slower reprojection.
forceAdapter = true;
}
}
{code}
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