private Integer createBandH5D(Band band) throws IOException {
final int w = band.getRasterWidth();
final int h = band.getRasterHeight();
long[] dims = new long[] {h, w};
int datasetID = -1;
int fileTypeID = -1;
int fileSpaceID = -1;
try {
fileTypeID = createH5TypeID(band.getDataType());
fileSpaceID = H5.H5Screate_simple(2, dims, null);
datasetID =
H5.H5Dcreate(
_fileID,
"/bands/" + band.getName(),
fileTypeID,
fileSpaceID,
HDF5Constants.H5P_DEFAULT);
try {
// @todo 1 nf/tb - MEMOPT: add min, max here
createScalarAttribute(datasetID, "raster_width", band.getRasterWidth());
createScalarAttribute(datasetID, "raster_height", band.getRasterHeight());
createScalarAttribute(datasetID, "scaling_factor", band.getScalingFactor());
createScalarAttribute(datasetID, "scaling_offset", band.getScalingOffset());
createScalarAttribute(datasetID, "log10_scaled", band.isLog10Scaled() ? "true" : "false");
createScalarAttribute(datasetID, "unit", band.getUnit());
createScalarAttribute(datasetID, "description", band.getDescription());
if (band.getSpectralBandIndex() >= 0) {
createScalarAttribute(datasetID, "spectral_band_index", band.getSpectralBandIndex() + 1);
createScalarAttribute(datasetID, "solar_flux", band.getSolarFlux());
createScalarAttribute(datasetID, "bandwidth", band.getSpectralBandwidth());
createScalarAttribute(datasetID, "wavelength", band.getSpectralWavelength());
}
if (band.getFlagCoding() != null) {
createScalarAttribute(datasetID, "flag_coding", band.getFlagCoding().getName());
}
createScalarAttribute(datasetID, "CLASS", "IMAGE");
createScalarAttribute(datasetID, "IMAGE_VERSION", 1.2F);
if (band.isStxSet()) {
final Stx stx = band.getStx();
createScalarAttribute(datasetID, "min_sample", stx.getMinimum());
createScalarAttribute(datasetID, "max_sample", stx.getMaximum());
}
if (band.getImageInfo() != null) {
final ColorPaletteDef paletteDef = band.getImageInfo().getColorPaletteDef();
float[] minmax =
new float[] {
(float) paletteDef.getMinDisplaySample(), (float) paletteDef.getMaxDisplaySample()
};
createArrayAttribute(datasetID, "IMAGE_MINMAXRANGE", minmax);
}
} catch (IOException e) {
/* ignore IOException because these attributes are not very essential... */
Debug.trace("failed to create attribute: " + e.getMessage());
}
} catch (HDF5Exception e) {
closeH5D(datasetID);
throw new ProductIOException(createErrorMessage(e));
} finally {
closeH5S(fileSpaceID);
closeH5T(fileTypeID);
}
return datasetID;
}
private void copyStx(RasterDataNode sourceRaster, RasterDataNode targetRaster) {
final Stx sourceStx = sourceRaster.getStx();
final Histogram sourceHistogram = sourceStx.getHistogram();
final Histogram targetHistogram =
new Histogram(
sourceStx.getHistogramBinCount(),
sourceHistogram.getLowValue(0),
sourceHistogram.getHighValue(0),
1);
System.arraycopy(
sourceHistogram.getBins(0),
0,
targetHistogram.getBins(0),
0,
sourceStx.getHistogramBinCount());
final Stx targetStx =
new Stx(
sourceStx.getMinimum(),
sourceStx.getMaximum(),
sourceStx.getMean(),
sourceStx.getStandardDeviation(),
sourceStx.getCoefficientOfVariation(),
sourceStx.getEquivalentNumberOfLooks(),
sourceStx.isLogHistogram(),
sourceStx.isIntHistogram(),
targetHistogram,
sourceStx.getResolutionLevel());
targetRaster.setStx(targetStx);
}
