public void testCropRectangle() throws Exception {
final Envelope rasterEnvelope = geoRasterSrc.getMetadata().getEnvelope();
geoRasterSrc.save(tmpData + "1.tif");
final int buffer = (int) (rasterEnvelope.getWidth() / 2.3);
final Rectangle2D cropRectangle =
new Rectangle2D.Double(
rasterEnvelope.getMinX() + buffer,
rasterEnvelope.getMinY() + buffer,
rasterEnvelope.getWidth() - 2 * buffer,
rasterEnvelope.getHeight() - 2 * buffer);
geoRasterDst = geoRasterSrc.doOperation(new Crop(cropRectangle));
geoRasterDst.save(tmpData + "2.tif");
assertTrue(geoRasterDst.getWidth() > 0);
assertTrue(geoRasterDst.getHeight() > 0);
final ImagePlus srcImagePlus = geoRasterSrc.getImagePlus();
final ImagePlus dstImagePlus = geoRasterDst.getImagePlus();
RasterMetadata dstMetadata = geoRasterDst.getMetadata();
RasterMetadata srcMetadata = geoRasterSrc.getMetadata();
assertTrue(dstMetadata.getEnvelope().getMinX() < cropRectangle.getMinX());
assertTrue(dstMetadata.getEnvelope().getMinY() < cropRectangle.getMinY());
assertTrue(dstMetadata.getEnvelope().getMaxX() > cropRectangle.getMaxX());
assertTrue(dstMetadata.getEnvelope().getMaxY() > cropRectangle.getMaxY());
assertTrue(dstMetadata.getEnvelope().getWidth() < srcMetadata.getEnvelope().getWidth());
checkCrop(geoRasterDst.getMetadata().getEnvelope(), srcImagePlus, dstImagePlus);
}
@Test
public void testAllWatersheds() throws Exception {
// load the DEM
geoRasterSrc.open();
// compute the slopes directions
final Operation slopesDirections = new D8OpDirection();
final GeoRaster grSlopesDirections = geoRasterSrc.doOperation(slopesDirections);
// compute all watersheds
final Operation allWatersheds = new D8OpAllWatersheds();
final GeoRaster grAllWatersheds = grSlopesDirections.doOperation(allWatersheds);
// compare the computed watersheds with previous ones
printGeoRasterAndArray(grAllWatersheds, allWatershedsForDEM);
compareGeoRasterAndArray(grAllWatersheds, allWatershedsForDEM);
}
private boolean test(String inFile, String refFile) throws Exception {
GeoRaster dem = GeoRasterFactory.createGeoRaster(GrapTest.internalData + inFile);
Operation d8OpDirection = new D8OpDirection();
GeoRaster directionCalc = dem.doOperation(d8OpDirection);
// compare to the reference
GeoRaster directionRef = GeoRasterFactory.createGeoRaster(GrapTest.internalData + refFile);
return equals(directionRef, directionCalc, true);
}
public void testCropLeHavre() throws Exception {
String src = externalData + "geotif/littlelehavre.tif";
GeoRaster geoRaster = GeoRasterFactory.createGeoRaster(src);
geoRaster.open();
RasterMetadata metadata = geoRaster.getMetadata();
Crop crop =
new Crop(
new Rectangle2D.Double(metadata.getXulcorner(), metadata.getYulcorner(), 10, -110));
// Just test it doesn't throw any exception
geoRaster.doOperation(crop);
assertTrue(true);
}
public void testCropPolygonOutside() throws Exception {
final LinearRing polygon =
new GeometryFactory()
.createLinearRing(
new Coordinate[] {
new Coordinate(100.5, 100.5),
new Coordinate(100.5, 101.5),
new Coordinate(101.5, 101.5),
new Coordinate(101.5, 100.5),
new Coordinate(100.5, 100.5)
});
geoRasterSrc.save(tmpData + "1.tif");
geoRasterDst = geoRasterSrc.doOperation(new Crop(polygon));
assertTrue(geoRasterDst.isEmpty());
}
public void testCropAll() throws Exception {
final Envelope rasterEnvelope = geoRasterSrc.getMetadata().getEnvelope();
final Rectangle2D cropRectangle =
new Rectangle2D.Double(
rasterEnvelope.getMinX(),
rasterEnvelope.getMinY(),
rasterEnvelope.getWidth(),
rasterEnvelope.getHeight());
geoRasterDst = geoRasterSrc.doOperation(new Crop(cropRectangle));
assertTrue(geoRasterDst.getWidth() > 0);
assertTrue(geoRasterDst.getHeight() > 0);
RasterMetadata dstMetadata = geoRasterDst.getMetadata();
RasterMetadata srcMetadata = geoRasterSrc.getMetadata();
assertTrue(dstMetadata.equals(srcMetadata));
}
public void testCropPolygon() throws Exception {
Envelope rasterEnvelope = geoRasterSrc.getMetadata().getEnvelope();
final int bufferSize = (int) (rasterEnvelope.getWidth() / 2.3);
rasterEnvelope =
new Envelope(
new Coordinate(
rasterEnvelope.getMinX() + bufferSize, rasterEnvelope.getMinY() + bufferSize),
new Coordinate(
rasterEnvelope.getMaxX() - bufferSize, rasterEnvelope.getMaxY() - bufferSize));
final LinearRing polygon = (LinearRing) EnvelopeUtil.toGeometry(rasterEnvelope);
geoRasterSrc.save(tmpData + "1.tif");
geoRasterDst = geoRasterSrc.doOperation(new Crop(polygon));
geoRasterDst.save(tmpData + "2.png");
assertTrue(geoRasterDst.getWidth() > 0);
assertTrue(geoRasterDst.getHeight() > 0);
final ImagePlus srcImagePlus = geoRasterSrc.getImagePlus();
final ImagePlus dstImagePlus = geoRasterDst.getImagePlus();
checkCrop(geoRasterDst.getMetadata().getEnvelope(), srcImagePlus, dstImagePlus);
}
@Override
protected GeoRaster evaluateResult(GeoRaster geoRasterSrc)
throws OperationException, IOException {
return geoRasterSrc.doOperation(new SquareValueOperation());
}