def test_join_use_mask_band():
# https://github.com/OSGeo/gdal/issues/1148
# The test checks the pixel at the coordinate of bottom left corner of the r2 raster is unmasked.
r1 = GeoRaster2.open("tests/data/raster/overlap1.tif")
r2 = GeoRaster2.open("tests/data/raster/overlap2.tif")
joined = join([r1, r2])
assert not joined.get(r2.corners()["bl"]).mask.all()
def test_chunks_without_pad(raster):
shape = (256, 256)
# validate we can construct the original raster from the chunks
chunks = [r for r, _ in raster.chunks()]
merged_raster = join(chunks)
assert merged_raster.crs == raster.crs
assert merged_raster.affine.almost_equals(raster.affine, precision=1e-3)
assert np.array_equal(merged_raster.image, raster.image)
def test_chunks_with_pad(raster):
shape = (256, 256)
# validate that each chunk is in the right offsets
for r, offsets in raster.chunks(shape, pad=True):
expected_raster = raster.get_window(Window(col_off=offsets[0], row_off=offsets[
1], width=shape[0], height=shape[1]))
assert r == expected_raster
# validate we can construct the original raster from the chunks
chunks = [r for r, _ in raster.chunks(pad=True)]
merged_raster = join(chunks)
assert merged_raster.crs == raster.crs
assert merged_raster.affine.almost_equals(raster.affine, precision=1e-3)
# raster created has bigger shape cause of the edges
assert np.array_equal(merged_raster.image[:, :raster.height, :raster.width], raster.image)
# validating the rest is masked
assert np.array_equal(merged_raster.image.mask[:, raster.height:, raster.width:].all(), True)
def test_chunks_for_full_raster(raster):
chunks = [r for r, _ in raster.chunks(pad=True)]
merged_raster = join(chunks)
joined_raster_from_256_mult_size = join(
[r for r, _ in merged_raster.chunks()])
assert joined_raster_from_256_mult_size.shape == merged_raster.shape
