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126 lines (116 loc) · 5.17 KB
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from pathlib import Path
import rvt.tile
import rvt.vis
import rvt.default
import numpy as np
# pytest rvt.tile.save_visualization_tile_by_tile
dem_path = Path(r"test_data\TM1_564_146.tif")
tile_size_x = 100
tile_size_y = 100
def test_slope_tile_by_tile() -> None:
out_slope_path = Path(r"test_data\TM1_564_146_test_tile_slope.tif")
# if resolution, resolution_x, resolution_y, no_data are None in function_parameters dict,
# they are taken from dem (dem_path)
output_units = "degree"
function_parameters = {"resolution_x": None, "resolution_y": None, "no_data": None, "output_units": output_units}
rvt.tile.save_visualization_tile_by_tile(
visualization_function=rvt.vis.slope_aspect,
function_parameters=function_parameters,
dem_path=dem_path,
overlap=1,
tile_size_x=tile_size_x,
tile_size_y=tile_size_y,
out_raster_path=out_slope_path,
out_raster_e_type=6,
out_raster_nr_of_bands=1,
out_visualization_dict_key="slope"
)
slope_tile_by_tile_arr = rvt.default.get_raster_arr(out_slope_path.as_posix())["array"]
dem_arr_dict = rvt.default.get_raster_arr(dem_path.as_posix())
slope_arr = rvt.vis.slope_aspect(
dem=dem_arr_dict["array"],
resolution_x=dem_arr_dict["resolution"][0],
resolution_y=dem_arr_dict["resolution"][1],
no_data=dem_arr_dict["no_data"],
output_units=output_units
)["slope"]
assert np.array_equal(slope_tile_by_tile_arr, slope_arr, equal_nan=True)
def test_hillshade_tile_by_tile() -> None:
out_hillshade_path = Path(r"test_data\TM1_564_146_test_tile_hillshade.tif")
# if resolution, resolution_x, resolution_y, no_data are None in function_parameters dict,
# they are taken from dem (dem_path)
function_parameters = {"resolution_x": None, "resolution_y": None, "no_data": None}
rvt.tile.save_visualization_tile_by_tile(
visualization_function=rvt.vis.hillshade,
function_parameters=function_parameters,
dem_path=dem_path,
overlap=1,
tile_size_x=tile_size_x,
tile_size_y=tile_size_y,
out_raster_path=out_hillshade_path,
out_raster_e_type=6,
out_raster_nr_of_bands=1
)
hillshade_tile_by_tile_arr = rvt.default.get_raster_arr(out_hillshade_path.as_posix())["array"]
dem_arr_dict = rvt.default.get_raster_arr(dem_path.as_posix())
hillshade_arr = rvt.vis.hillshade(
dem=dem_arr_dict["array"],
resolution_x=dem_arr_dict["resolution"][0],
resolution_y=dem_arr_dict["resolution"][1],
no_data=dem_arr_dict["no_data"]
)
assert np.array_equal(hillshade_tile_by_tile_arr, hillshade_arr, equal_nan=True)
def test_svf_tile_by_tile() -> None:
out_svf_path = Path(r"test_data\TM1_564_146_test_tile_svf.tif")
# if resolution, resolution_x, resolution_y, no_data are None in function_parameters dict,
# they are taken from dem (dem_path)
svf_r_max = 10
function_parameters = {"resolution": None, "no_data": None, "svf_r_max": svf_r_max}
rvt.tile.save_visualization_tile_by_tile(
visualization_function=rvt.vis.sky_view_factor,
function_parameters=function_parameters,
dem_path=dem_path,
overlap=svf_r_max,
tile_size_x=tile_size_x,
tile_size_y=tile_size_y,
out_raster_path=out_svf_path,
out_raster_e_type=6,
out_raster_nr_of_bands=1,
out_visualization_dict_key="svf"
)
svf_tile_by_tile_arr = rvt.default.get_raster_arr(out_svf_path.as_posix())["array"]
dem_arr_dict = rvt.default.get_raster_arr(dem_path.as_posix())
svf_arr = rvt.vis.sky_view_factor(
dem=dem_arr_dict["array"],
resolution=dem_arr_dict["resolution"][0],
no_data=dem_arr_dict["no_data"],
svf_r_max=10
)["svf"]
assert np.array_equal(svf_tile_by_tile_arr, svf_arr, equal_nan=True)
def test_multi_hillshade_tile_by_tile() -> None:
out_multi_hillshade_path = Path(r"test_data\TM1_564_146_test_tile_multi_hillshade.tif")
# if resolution, resolution_x, resolution_y, no_data are None in function_parameters dict,
# they are taken from dem (dem_path)
nr_directions = 8
function_parameters = {"resolution_x": None, "resolution_y": None, "no_data": None, "nr_directions": nr_directions}
rvt.tile.save_visualization_tile_by_tile(
visualization_function=rvt.vis.multi_hillshade,
function_parameters=function_parameters,
dem_path=dem_path,
overlap=1,
tile_size_x=tile_size_x,
tile_size_y=tile_size_y,
out_raster_path=out_multi_hillshade_path,
out_raster_e_type=6,
out_raster_nr_of_bands=nr_directions
)
multi_hillshade_tile_by_tile_arr = rvt.default.get_raster_arr(out_multi_hillshade_path.as_posix())["array"]
dem_arr_dict = rvt.default.get_raster_arr(dem_path.as_posix())
multi_hillshade_arr = rvt.vis.multi_hillshade(
dem=dem_arr_dict["array"],
resolution_x=dem_arr_dict["resolution"][0],
resolution_y=dem_arr_dict["resolution"][1],
no_data=dem_arr_dict["no_data"],
nr_directions=nr_directions
)
assert np.array_equal(multi_hillshade_tile_by_tile_arr, multi_hillshade_arr, equal_nan=True)