/**
* Tests the {@link OverviewsController} with support for different resolutions/different number
* of overviews.
*
* <p>world_a.tif => Pixel Size = (0.833333333333333,-0.833333333333333); 4 overviews world_b.tif
* => Pixel Size = (1.406250000000000,-1.406250000000000); 2 overviews
*
* @throws IOException
* @throws MismatchedDimensionException
* @throws FactoryException
* @throws TransformException
*/
@Test
public void testHeterogeneousGranules()
throws IOException, MismatchedDimensionException, FactoryException, TransformException {
final CoordinateReferenceSystem WGS84 = CRS.decode("EPSG:4326", true);
final ReferencedEnvelope TEST_BBOX_A = new ReferencedEnvelope(-180, 0, -90, 90, WGS84);
final ReferencedEnvelope TEST_BBOX_B = new ReferencedEnvelope(0, 180, 0, 90, WGS84);
URL heterogeneousGranulesURL = TestData.url(this, "heterogeneous");
// //
//
// Initialize mosaic variables
//
// //
final Hints hints = new Hints(Hints.DEFAULT_COORDINATE_REFERENCE_SYSTEM, WGS84);
final AbstractGridFormat format =
(AbstractGridFormat) GridFormatFinder.findFormat(heterogeneousGranulesURL, hints);
Assert.assertNotNull(format);
Assert.assertFalse("UknownFormat", format instanceof UnknownFormat);
final ImageMosaicReader reader =
(ImageMosaicReader) format.getReader(heterogeneousGranulesURL, hints);
Assert.assertNotNull(reader);
final int nOv = reader.getNumberOfOvervies();
final double[] hRes = reader.getHighestRes();
final RasterManager rasterManager = new RasterManager(reader);
// //
//
// Initialize granules related variables
//
// //
final File g1File = new File(DataUtilities.urlToFile(heterogeneousGranulesURL), "world_a.tif");
final File g2File = new File(DataUtilities.urlToFile(heterogeneousGranulesURL), "world_b.tif");
final ImageReadParam readParamsG1 = new ImageReadParam();
final ImageReadParam readParamsG2 = new ImageReadParam();
int imageIndexG1 = 0;
int imageIndexG2 = 0;
final GranuleDescriptor granuleDescriptor1 =
new GranuleDescriptor(g1File.getAbsolutePath(), TEST_BBOX_A, spi, (Geometry) null, true);
final GranuleDescriptor granuleDescriptor2 =
new GranuleDescriptor(g2File.getAbsolutePath(), TEST_BBOX_B, spi, (Geometry) null, true);
assertNotNull(granuleDescriptor1.toString());
assertNotNull(granuleDescriptor2.toString());
final OverviewsController ovControllerG1 = granuleDescriptor1.overviewsController;
final OverviewsController ovControllerG2 = granuleDescriptor2.overviewsController;
// //
//
// Initializing read request
//
// //
final GeneralEnvelope envelope = reader.getOriginalEnvelope();
final GridEnvelope originalRange = reader.getOriginalGridRange();
final Rectangle rasterArea =
new Rectangle(
0,
0,
(int) Math.ceil(originalRange.getSpan(0) / 9.0),
(int) Math.ceil(originalRange.getSpan(1) / 9.0));
final GridEnvelope2D range = new GridEnvelope2D(rasterArea);
final GridToEnvelopeMapper geMapper = new GridToEnvelopeMapper(range, envelope);
geMapper.setPixelAnchor(PixelInCell.CELL_CENTER);
final AffineTransform gridToWorld = geMapper.createAffineTransform();
final double requestedResolution[] =
new double[] {
XAffineTransform.getScaleX0(gridToWorld), XAffineTransform.getScaleY0(gridToWorld)
};
TestSet at = null;
if (nOv == 4 && Math.abs(hRes[0] - 0.833333333333) <= THRESHOLD) {
at = at1;
} else if (nOv == 2 && Math.abs(hRes[0] - 1.40625) <= THRESHOLD) {
at = at2;
} else {
return;
}
// //
//
// Starting OverviewsController tests
//
// //
final OverviewPolicy[] ovPolicies =
new OverviewPolicy[] {
OverviewPolicy.QUALITY,
OverviewPolicy.SPEED,
OverviewPolicy.NEAREST,
OverviewPolicy.IGNORE
};
for (int i = 0; i < ovPolicies.length; i++) {
OverviewPolicy ovPolicy = ovPolicies[i];
LOGGER.info("Testing with OverviewPolicy = " + ovPolicy.toString());
imageIndexG1 =
ReadParamsController.setReadParams(
requestedResolution,
ovPolicy,
DecimationPolicy.ALLOW,
readParamsG1,
rasterManager,
ovControllerG1);
imageIndexG2 =
ReadParamsController.setReadParams(
requestedResolution,
ovPolicy,
DecimationPolicy.ALLOW,
readParamsG2,
rasterManager,
ovControllerG2);
assertSame(at.ot[i].g1.imageIndex, imageIndexG1);
assertSame(at.ot[i].g2.imageIndex, imageIndexG2);
assertSame(at.ot[i].g1.ssx, readParamsG1.getSourceXSubsampling());
assertSame(at.ot[i].g1.ssy, readParamsG1.getSourceYSubsampling());
assertSame(at.ot[i].g2.ssx, readParamsG2.getSourceXSubsampling());
assertSame(at.ot[i].g2.ssy, readParamsG2.getSourceYSubsampling());
}
}
