129 строки
4.3 KiB
Python
Исполняемый файл
129 строки
4.3 KiB
Python
Исполняемый файл
#!/usr/bin/env pytest
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###############################################################################
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# $Id$
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#
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# Project: GDAL/OGR Test Suite
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# Purpose: gdal_fillnodata.py testing
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# Author: Even Rouault <even dot rouault @ spatialys.com>
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#
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###############################################################################
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# Copyright (c) 2010, Even Rouault <even dot rouault at spatialys.com>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, fillnodata, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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###############################################################################
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import struct
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import pytest
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import test_py_scripts
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from osgeo import gdal
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pytestmark = pytest.mark.skipif(
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test_py_scripts.get_py_script("gdal_fillnodata") is None,
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reason="gdal_fillnodata not available",
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)
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@pytest.fixture()
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def script_path():
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return test_py_scripts.get_py_script("gdal_fillnodata")
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###############################################################################
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# Dummy test : there is no nodata value in the source dataset !
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def test_gdal_fillnodata_1(script_path):
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test_py_scripts.run_py_script(
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script_path,
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"gdal_fillnodata",
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test_py_scripts.get_data_path("gcore")
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+ "byte.tif tmp/test_gdal_fillnodata_1.tif",
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)
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try:
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ds = gdal.Open("tmp/test_gdal_fillnodata_1.tif")
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assert ds.GetRasterBand(1).Checksum() == 4672
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ds = None
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finally:
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gdal.GetDriverByName("GTiff").Delete("tmp/test_gdal_fillnodata_1.tif")
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###############################################################################
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# Make sure we copy the no data value to the dst when created
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# No data value for nodata_byte.tif is 0.
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def test_gdal_fillnodata_2(script_path):
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test_py_scripts.run_py_script(
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script_path,
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"gdal_fillnodata",
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"-si 0 "
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+ test_py_scripts.get_data_path("gcore")
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+ "nodata_byte.tif tmp/test_gdal_fillnodata_2.tif",
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)
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try:
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ds = gdal.Open("tmp/test_gdal_fillnodata_2.tif")
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assert (
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ds.GetRasterBand(1).GetNoDataValue() == 0
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), "Failed to copy No Data Value to dst dataset."
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ds = None
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finally:
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gdal.GetDriverByName("GTiff").Delete("tmp/test_gdal_fillnodata_2.tif")
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###############################################################################
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# Test -si 1 and -md
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def test_gdal_fillnodata_smoothing(script_path):
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ds = gdal.GetDriverByName("GTiff").Create(
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"tmp/test_gdal_fillnodata_smoothing_in.tif", 4, 4
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)
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ds.GetRasterBand(1).SetNoDataValue(0)
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input_data = (20, 30, 40, 50, 30, 0, 0, 60, 40, 0, 0, 70, 50, 60, 70, 80)
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ds.GetRasterBand(1).WriteRaster(
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0, 0, 4, 4, b"".join([struct.pack("B", x) for x in input_data])
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)
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ds = None
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test_py_scripts.run_py_script(
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script_path,
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"gdal_fillnodata",
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"-md 1 -si 1 tmp/test_gdal_fillnodata_smoothing_in.tif tmp/test_gdal_fillnodata_smoothing.tif",
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)
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expected_data = (20, 30, 40, 50, 30, 40, 50, 60, 40, 50, 60, 70, 50, 60, 70, 80)
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try:
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ds = gdal.Open("tmp/test_gdal_fillnodata_smoothing.tif")
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assert (
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struct.unpack("B" * 16, ds.GetRasterBand(1).ReadRaster()) == expected_data
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)
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ds = None
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finally:
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gdal.GetDriverByName("GTiff").Delete(
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"tmp/test_gdal_fillnodata_smoothing_in.tif"
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)
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gdal.GetDriverByName("GTiff").Delete("tmp/test_gdal_fillnodata_smoothing.tif")
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