/**
* Tests the "Resample" operation with a stereographic coordinate system.
*
* @throws FactoryException
* @throws NoSuchAuthorityCodeException
*/
@Test
public void testReproject() throws NoSuchAuthorityCodeException, FactoryException {
// do it again, make sure the image does not turn black since
GridCoverage2D coverage_ =
project(ushortCoverage, CRS.parseWKT(GOOGLE_MERCATOR_WKT), null, "nearest", null, true);
// reproject the ushort and check that things did not go bad, that is it turned black
coverage_ = (GridCoverage2D) Operations.DEFAULT.extrema(coverage_);
Object minimums = coverage_.getProperty(Extrema.GT_SYNTHETIC_PROPERTY_MINIMUM);
Assert.assertTrue(minimums instanceof double[]);
final double[] mins = (double[]) minimums;
Object maximums = coverage_.getProperty(Extrema.GT_SYNTHETIC_PROPERTY_MAXIMUM);
Assert.assertTrue(maximums instanceof double[]);
final double[] max = (double[]) maximums;
boolean fail = true;
for (int i = 0; i < mins.length; i++) if (mins[i] != max[i] && max[i] > 0) fail = false;
Assert.assertFalse("Reprojection failed", fail);
// exception in case the target crs does not comply with the target gg crs
try {
// we supplied both crs and target gg in different crs, we get an exception backS
assertEquals(
"Warp",
showProjected(
coverage, CRS.parseWKT(GOOGLE_MERCATOR_WKT), coverage.getGridGeometry(), null, true));
Assert.assertTrue(
"We should not be allowed to set different crs for target crs and target gg", false);
} catch (Exception e) {
// ok!
}
}
/**
* Tests the "Resample" operation with a stereographic coordinate system on a paletted image
*
* @throws FactoryException
* @throws NoSuchAuthorityCodeException
*/
@Test
public void testReprojectPalette() throws NoSuchAuthorityCodeException, FactoryException {
// do it again, make sure the image does not turn black since
GridCoverage2D input = ushortCoverage;
// Create a Palette image from the input coverage
RenderedImage src = input.getRenderedImage();
ImageWorker iw = new ImageWorker(src).rescaleToBytes().forceIndexColorModel(false);
src = iw.getRenderedOperation();
// Setting Force ReplaceIndexColorModel and CoverageProcessingView as SAME
Hints hints = GeoTools.getDefaultHints().clone();
hints.put(JAI.KEY_REPLACE_INDEX_COLOR_MODEL, true);
hints.put(Hints.COVERAGE_PROCESSING_VIEW, ViewType.SAME);
// Create a new GridCoverage
GridCoverageFactory factory = new GridCoverageFactory(hints);
GridCoverage2D palette = factory.create("test", src, input.getEnvelope());
CoordinateReferenceSystem targetCRS = CRS.parseWKT(GOOGLE_MERCATOR_WKT);
GridCoverage2D coverage_ = project(palette, targetCRS, null, "bilinear", hints, true);
// reproject the ushort and check that things did not go bad, that is it turned black
coverage_ = (GridCoverage2D) Operations.DEFAULT.extrema(coverage_);
Object minimums = coverage_.getProperty(Extrema.GT_SYNTHETIC_PROPERTY_MINIMUM);
Assert.assertTrue(minimums instanceof double[]);
final double[] mins = (double[]) minimums;
Object maximums = coverage_.getProperty(Extrema.GT_SYNTHETIC_PROPERTY_MAXIMUM);
Assert.assertTrue(maximums instanceof double[]);
final double[] max = (double[]) maximums;
boolean fail = true;
for (int i = 0; i < mins.length; i++) if (mins[i] != max[i] && max[i] > 0) fail = false;
Assert.assertFalse("Reprojection failed", fail);
// Ensure the CRS is correct
CoordinateReferenceSystem targetCoverageCRS = coverage_.getCoordinateReferenceSystem();
Assert.assertTrue(CRS.equalsIgnoreMetadata(targetCRS, targetCoverageCRS));
}