/**
* Quick method for populating the {@link CUDABean} instance provided.
*
* @param bean
* @param reference
* @param coverage
* @param geo
* @param transform
* @throws IOException
* @throws MismatchedDimensionException
* @throws TransformException
*/
private void populateBean(
CUDABean bean,
boolean reference,
GridCoverage2D coverage,
Geometry geo,
MathTransform transform,
int buffer)
throws IOException, MismatchedDimensionException, TransformException {
RenderedImage image = coverage.getRenderedImage();
// 0) Check if a buffer must be applied
Geometry originalGeo = (Geometry) geo.clone();
if (buffer > 0) {
try {
if (!"EPSG:4326"
.equals(CRS.lookupIdentifier(coverage.getCoordinateReferenceSystem(), false))) {
geo = geo.buffer(buffer);
} else {
geo = geo.buffer(buffer / 111.128);
}
} catch (FactoryException e) {
geo = geo.buffer(buffer);
}
}
// 1) Crop the two coverages with the selected Geometry
GridCoverage2D crop = CROP.execute(coverage, geo, null);
transform =
ProjectiveTransform.create(
(AffineTransform) crop.getGridGeometry().getGridToCRS(PixelInCell.CELL_CORNER))
.inverse();
// 2) Extract the BufferedImage from each image
image = crop.getRenderedImage();
Rectangle rectIMG =
new Rectangle(image.getMinX(), image.getMinY(), image.getWidth(), image.getHeight());
ImageWorker w = new ImageWorker(image);
BufferedImage buf = w.getBufferedImage();
if (image instanceof RenderedOp) {
((RenderedOp) image).dispose();
}
// 3) Generate an array of data from each image
Raster data = buf.getData();
final DataBufferByte db = (DataBufferByte) data.getDataBuffer();
byte[] byteData = db.getData();
if (reference) {
// 4) Transform the Geometry to Raster space
Geometry rs = JTS.transform(geo, transform);
Geometry rsFilter = JTS.transform(geo.difference(originalGeo), transform);
ROI roiGeo = new ROIGeometry(rs);
ROI roiFilter = new ROIGeometry(rsFilter);
// 5) Extract an array of data from the transformed ROI
byte[] roiData = getROIData((buffer > 0 ? roiFilter : roiGeo), rectIMG);
bean.setRoi(roiData);
bean.setRoiObj(roiGeo);
// 6) Setting the Coverage data array
bean.setReferenceImage(byteData);
// 7) Setting the Image dimensions
bean.setHeight(rectIMG.height);
bean.setWidth(rectIMG.width);
bean.setMinX(rectIMG.x);
bean.setMinY(rectIMG.y);
} else {
// 6) Setting the Coverage data array
bean.setCurrentImage(byteData);
}
// 7) Store the Reference Covergae containing the geospatial info
bean.setReferenceCoverage(coverage);
}
