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 testGrid2Grid() throws Exception {
GeoRaster gr = GeoRasterFactory.createGeoRaster(otherData + "sample.asc");
gr.open();
final RasterMetadata originalMetadata = gr.getMetadata();
final float[] pixels = gr.getFloatPixels();
final File file2 = new File(tmpData + "1.asc");
gr.save(file2.getAbsolutePath());
gr = GeoRasterFactory.createGeoRaster(file2.getAbsolutePath());
gr.open();
final float[] gridPixels = gr.getFloatPixels();
assertTrue(gridPixels.length == pixels.length);
equals(pixels, gridPixels);
final RasterMetadata newM = gr.getMetadata();
assertTrue(newM.getEnvelope().equals(originalMetadata.getEnvelope()));
assertTrue(newM.getNCols() == originalMetadata.getNCols());
assertTrue(newM.getNRows() == originalMetadata.getNRows());
assertTrue(newM.getPixelSize_X() == originalMetadata.getPixelSize_X());
assertTrue(newM.getPixelSize_Y() == originalMetadata.getPixelSize_Y());
assertTrue(newM.getRotation_X() == originalMetadata.getRotation_X());
assertTrue(newM.getRotation_Y() == originalMetadata.getRotation_Y());
assertTrue(newM.getXulcorner() == originalMetadata.getXulcorner());
assertTrue(newM.getYulcorner() == originalMetadata.getYulcorner());
}
@Test
public void testXYZDEMReader() throws Exception {
final GeoRaster gr =
GeoRasterFactory.createGeoRaster(
internalData + "MNT_Nantes_Lambert.xyz", GeoProcessorType.FLOAT, 10);
gr.open();
gr.save(tmpData + "xyzdem.tif");
}
@Test
public void testLoadSaveGrid() throws Exception {
GeoRaster gr = GeoRasterFactory.createGeoRaster(internalData + "3x3.asc");
gr.open();
check3x3(gr);
gr.save(tmpData + "1.png");
gr = GeoRasterFactory.createGeoRaster(tmpData + "1.png");
gr.open();
check3x3(gr);
}
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);
}
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());
}