@Test
public void NetCDFNoDataOperation()
throws NoSuchAuthorityCodeException, FactoryException, IOException, ParseException {
File mosaic = new File(TestData.file(this, "."), "NetCDFGOME2");
if (mosaic.exists()) {
FileUtils.deleteDirectory(mosaic);
}
assertTrue(mosaic.mkdirs());
File file = TestData.file(this, "DUMMY.GOME2.NO2.PGL.nc");
FileUtils.copyFileToDirectory(file, mosaic);
file = new File(mosaic, "DUMMY.GOME2.NO2.PGL.nc");
final Hints hints =
new Hints(Hints.DEFAULT_COORDINATE_REFERENCE_SYSTEM, CRS.decode("EPSG:4326", true));
// Get format
final AbstractGridFormat format =
(AbstractGridFormat) GridFormatFinder.findFormat(file.toURI().toURL(), hints);
final NetCDFReader reader = (NetCDFReader) format.getReader(file.toURI().toURL(), hints);
assertNotNull(format);
GridCoverage2D gc = null;
try {
String[] names = reader.getGridCoverageNames();
names = new String[] {names[0]};
gc = reader.read(null);
} catch (Throwable t) {
throw new RuntimeException(t);
} finally {
if (reader != null) {
try {
reader.dispose();
} catch (Throwable t) {
// Does nothing
}
}
}
// Checking NoData
Object noData = CoverageUtilities.getNoDataProperty(gc);
assertNotNull(noData);
assertTrue(noData instanceof NoDataContainer);
Double d = ((NoDataContainer) noData).getAsSingleValue();
assertEquals(d, -999d, DELTA);
// Try to execute an operation on the NoData and check if the result contains also NoData
CoverageProcessor instance = CoverageProcessor.getInstance();
Operation scale = instance.getOperation("Scale");
ParameterValueGroup params = scale.getParameters();
params.parameter("Source0").setValue(gc);
params.parameter("backgroundValues").setValue(new double[] {0});
GridCoverage2D result = (GridCoverage2D) instance.doOperation(params);
noData = CoverageUtilities.getNoDataProperty(result);
assertNotNull(noData);
assertTrue(noData instanceof NoDataContainer);
d = ((NoDataContainer) noData).getAsSingleValue();
assertEquals(d, 0d, DELTA);
}
@Test
public void NetCDFNoData()
throws NoSuchAuthorityCodeException, FactoryException, IOException, ParseException {
File mosaic = new File(TestData.file(this, "."), "NetCDFGOME2");
if (mosaic.exists()) {
FileUtils.deleteDirectory(mosaic);
}
assertTrue(mosaic.mkdirs());
File file = TestData.file(this, "DUMMY.GOME2.NO2.PGL.nc");
FileUtils.copyFileToDirectory(file, mosaic);
file = new File(mosaic, "DUMMY.GOME2.NO2.PGL.nc");
final Hints hints =
new Hints(Hints.DEFAULT_COORDINATE_REFERENCE_SYSTEM, CRS.decode("EPSG:4326", true));
// Get format
final AbstractGridFormat format =
(AbstractGridFormat) GridFormatFinder.findFormat(file.toURI().toURL(), hints);
final NetCDFReader reader = (NetCDFReader) format.getReader(file.toURI().toURL(), hints);
assertNotNull(format);
try {
String[] names = reader.getGridCoverageNames();
names = new String[] {names[0]};
GridCoverage2D gc = reader.read(null);
Object noData = CoverageUtilities.getNoDataProperty(gc);
assertNotNull(noData);
assertTrue(noData instanceof NoDataContainer);
Double d = ((NoDataContainer) noData).getAsSingleValue();
assertEquals(d, -999d, DELTA);
} catch (Throwable t) {
throw new RuntimeException(t);
} finally {
if (reader != null) {
try {
reader.dispose();
} catch (Throwable t) {
// Does nothing
}
}
}
}