@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 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);
}
@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");
}
private void testOpen(File file) throws Exception {
GeoRaster gr = GeoRasterFactory.createGeoRaster(file.getAbsolutePath());
gr.open();
int rasterType = gr.getType();
DataSource ds = dsf.getDataSource(file);
ds.open();
Metadata metadata = ds.getMetadata();
Type fieldType = metadata.getFieldType(0);
assertTrue(fieldType.getIntConstraint(Constraint.RASTER_TYPE) == rasterType);
ds.getFieldValue(0, 0);
ds.close();
}
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);
}
@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);
}
@Test(expected = IOException.class)
public void testPNGWithoutWorldFile() throws Exception {
final GeoRaster gr = GeoRasterFactory.createGeoRaster(internalData + "noWorldFile.png");
gr.open();
gr.getType();
}
@Test
public void testJPGReader() throws Exception {
final GeoRaster gr = GeoRasterFactory.createGeoRaster(internalData + "smallChezineLambert.jpg");
gr.open();
}
@Test(expected = IOException.class)
public void testGridWithoutHeader() throws Exception {
final GeoRaster gr = GeoRasterFactory.createGeoRaster(externalData + "ij3x3.asc");
gr.open();
}
protected void setUp() throws Exception {
super.setUp();
geoRasterSrc = GeoRasterFactory.createGeoRaster(externalData + "grid/sample.asc");
geoRasterSrc.open();
}