def test_get_shifted_base():
data = np.random.random((6, 7))
tile_origin = np.array((0, 0))
tile_shape = np.array((6, 7))
target_tup, offsets = get_shifted(arr_shape=np.array(data.shape),
tile_origin=tile_origin,
tile_shape=tile_shape,
shift=np.array((0, 0)))
print(target_tup)
print(offsets)
(target_slice, source_slice) = to_slices(target_tup, offsets)
print(target_slice, source_slice)
res = np.full(tile_shape, 17, dtype=data.dtype)
res[target_slice] = data[source_slice]
print("result:", res)
print("data:", data)
assert np.all(res == data)
assert res.dtype == data.dtype
assert res.shape == data.shape
def test_get_shifted_minus_partial():
data_shape = np.array((6, 7))
data = np.random.random(data_shape)
tile_origin = np.array((1, 2))
tile_shape = np.array((3, 4))
target_tup, offsets = get_shifted(arr_shape=np.array(data.shape),
tile_origin=tile_origin,
tile_shape=tile_shape,
shift=np.array((-1, -2)))
print(target_tup)
print(offsets)
(target_slice, source_slice) = to_slices(target_tup, offsets)
res = np.full(tile_shape, 17, dtype=data.dtype)
res[target_slice] = data[source_slice]
print("result:", res)
print("data:", data)
assert np.all(res == data[:3, :4])
assert res.dtype == data.dtype
def test_get_shifted_plus():
data_shape = np.array((4, 5))
data = np.random.random(data_shape)
tile_origin = np.array((0, 0))
tile_shape = data_shape
target_tup, offsets = get_shifted(arr_shape=np.array(data.shape),
tile_origin=tile_origin,
tile_shape=tile_shape,
shift=np.array((1, 2)))
print(target_tup)
print(offsets)
(target_slice, source_slice) = to_slices(target_tup, offsets)
res = np.full(tile_shape, 17, dtype=data.dtype)
res[target_slice] = data[source_slice]
print("result:", res)
print("data:", data)
assert np.all(res[:-1, :-2] == data[1:, 2:])
assert np.all(res[-1:] == 17)
assert np.all(res[:, -2:] == 17)
assert res.dtype == data.dtype
assert res.shape == data.shape