gdal/autotest/pyscripts/test_gdal_edit.py

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#!/usr/bin/env pytest
# -*- coding: utf-8 -*-
###############################################################################
# $Id$
#
# Project: GDAL/OGR Test Suite
# Purpose: gdal_edit.py testing
# Author: Even Rouault <even dot rouault @ spatialys.com>
#
###############################################################################
# Copyright (c) 2013, Even Rouault <even dot rouault at spatialys.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################
import os
import shutil
import sys
import pytest
import test_py_scripts
from osgeo import gdal
pytestmark = pytest.mark.skipif(
test_py_scripts.get_py_script("gdal_edit") is None,
reason="gdal_edit not available",
)
@pytest.fixture()
def script_path():
return test_py_scripts.get_py_script("gdal_edit")
# Usage: gdal_edit [--help-general] [-a_srs srs_def] [-a_ullr ulx uly lrx lry]
# [-tr xres yres] [-a_nodata value]
# [-unsetgt] [-stats] [-approx_stats]
# [-gcp pixel line easting northing [elevation]]*
# [-mo "META-TAG=VALUE"]* datasetname
###############################################################################
# Test -a_srs, -a_ullr, -a_nodata, -mo, -unit
@pytest.mark.parametrize("read_only", [True, False])
def test_gdal_edit_py_1(script_path, read_only):
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
if sys.platform == "win32":
# Passing utf-8 characters doesn't at least please Wine...
val = "fake-utf8"
val_encoded = val
else:
val = "\u00e9ven"
val_encoded = val
read_only_option = " -ro" if read_only else ""
test_py_scripts.run_py_script(
script_path,
"gdal_edit",
filename
+ " -a_srs EPSG:4326 -a_ullr 2 50 3 49 -a_nodata 123 -mo FOO=BAR -units metre -mo UTF8="
+ val_encoded
+ " -mo "
+ val_encoded
+ "=UTF8"
+ read_only_option,
)
ds = gdal.Open(filename)
wkt = ds.GetProjectionRef()
gt = ds.GetGeoTransform()
nd = ds.GetRasterBand(1).GetNoDataValue()
md = ds.GetMetadata()
units = ds.GetRasterBand(1).GetUnitType()
ds = None
assert wkt.find("4326") != -1
expected_gt = (2.0, 0.050000000000000003, 0.0, 50.0, 0.0, -0.050000000000000003)
for i in range(6):
assert gt[i] == pytest.approx(expected_gt[i], abs=1e-10)
assert nd == 123
assert md["FOO"] == "BAR"
assert md["UTF8"] == val
assert md[val] == "UTF8"
assert units == "metre"
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -a_ulurll
def test_gdal_edit_py_1b(script_path):
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
for points, expected in (
("2 50 3 50 2 49", (2, 0.05, 0, 50, 0, -0.05)), # not rotated
("25 70 55 80 35 40", (25, 1.5, 0.5, 70, 0.5, -1.5)), # rotated CCW
("25 70 55 65 20 40", (25, 1.5, -0.25, 70, -0.25, -1.5)), # rotated CW
):
arguments = filename + " -a_ulurll " + points
assert (
test_py_scripts.run_py_script(script_path, "gdal_edit", arguments) == ""
)
assert gdal.Open(filename).GetGeoTransform() == pytest.approx(expected)
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -unsetgt
def test_gdal_edit_py_2(script_path):
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
test_py_scripts.run_py_script(script_path, "gdal_edit", filename + " -unsetgt")
ds = gdal.Open(filename)
wkt = ds.GetProjectionRef()
gt = ds.GetGeoTransform(can_return_null=True)
ds = None
assert gt is None
assert wkt != ""
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -a_srs ''
def test_gdal_edit_py_3(script_path):
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
test_py_scripts.run_py_script(script_path, "gdal_edit", filename + " -a_srs ''")
ds = gdal.Open(filename)
wkt = ds.GetProjectionRef()
gt = ds.GetGeoTransform()
ds = None
assert gt != (0.0, 1.0, 0.0, 0.0, 0.0, 1.0)
assert wkt == ""
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -unsetstats
def test_gdal_edit_py_4(script_path):
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
ds = gdal.Open(filename, gdal.GA_Update)
band = ds.GetRasterBand(1)
band.ComputeStatistics(False)
band.SetMetadataItem("FOO", "BAR")
ds = band = None
ds = gdal.Open(filename)
band = ds.GetRasterBand(1)
assert not (
band.GetMetadataItem("STATISTICS_MINIMUM") is None
or band.GetMetadataItem("FOO") is None
)
ds = band = None
test_py_scripts.run_py_script(
script_path, "gdal_edit", "tmp/test_gdal_edit_py.tif -unsetstats"
)
ds = gdal.Open(filename)
band = ds.GetRasterBand(1)
assert not (
band.GetMetadataItem("STATISTICS_MINIMUM") is not None
or band.GetMetadataItem("FOO") is None
)
ds = band = None
with pytest.raises(OSError):
os.stat(filename + ".aux.xml")
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -stats
def test_gdal_edit_py_5(script_path):
gdal_array = pytest.importorskip("osgeo.gdal_array")
try:
gdal_array.BandRasterIONumPy
except AttributeError:
pytest.skip("osgeo.gdal_array.BandRasterIONumPy is unavailable")
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
ds = gdal.Open(filename, gdal.GA_Update)
band = ds.GetRasterBand(1)
array = band.ReadAsArray()
# original minimum is 74; modify a pixel value from 99 to 22
array[15, 12] = 22
band.WriteArray(array)
ds = band = None
ds = gdal.Open(filename)
assert ds.ReadAsArray()[15, 12] == 22
ds = None
test_py_scripts.run_py_script(script_path, "gdal_edit", filename + " -stats")
ds = gdal.Open(filename)
stat_min = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MINIMUM")
assert stat_min is not None and float(stat_min) == 22
ds = None
ds = gdal.Open(filename, gdal.GA_Update)
band = ds.GetRasterBand(1)
array = band.ReadAsArray()
array[15, 12] = 26
band.WriteArray(array)
ds = band = None
ds = gdal.Open(filename)
assert ds.ReadAsArray()[15, 12] == 26
ds = None
test_py_scripts.run_py_script(
script_path, "gdal_edit", "tmp/test_gdal_edit_py.tif -stats"
)
ds = gdal.Open(filename)
stat_min = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MINIMUM")
assert stat_min is not None and float(stat_min) == 26
ds = None
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -setstats
def test_gdal_edit_py_6(script_path):
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
# original values should be min=74, max=255, mean=126.765 StdDev=22.928470838676
test_py_scripts.run_py_script(
script_path, "gdal_edit", filename + " -setstats None None None None"
)
ds = gdal.Open(filename)
stat_min = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MINIMUM")
assert stat_min is not None and float(stat_min) == 74
stat_max = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MAXIMUM")
assert stat_max is not None and float(stat_max) == 255
stat_mean = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MEAN")
assert not (
stat_mean is None or float(stat_mean) != pytest.approx(126.765, abs=0.001)
)
stat_stddev = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_STDDEV")
assert not (
stat_stddev is None
or float(stat_stddev) != pytest.approx(22.928, abs=0.001)
)
ds = None
test_py_scripts.run_py_script(
script_path, "gdal_edit", filename + " -setstats 22 217 100 30"
)
ds = gdal.Open(filename)
stat_min = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MINIMUM")
assert stat_min is not None and float(stat_min) == 22
stat_max = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MAXIMUM")
assert stat_max is not None and float(stat_max) == 217
stat_mean = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_MEAN")
assert stat_mean is not None and float(stat_mean) == 100
stat_stddev = ds.GetRasterBand(1).GetMetadataItem("STATISTICS_STDDEV")
assert stat_stddev is not None and float(stat_stddev) == 30
ds = None
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -scale and -offset
def test_gdal_edit_py_7(script_path):
filename = "tmp/test_gdal_edit_py.tif"
shutil.copy(test_py_scripts.get_data_path("gcore") + "byte.tif", filename)
try:
test_py_scripts.run_py_script(
script_path, "gdal_edit", filename + " -scale 2 -offset 3"
)
ds = gdal.Open(filename)
assert ds.GetRasterBand(1).GetScale() == 2
assert ds.GetRasterBand(1).GetOffset() == 3
ds = None
shutil.copy(
test_py_scripts.get_data_path("gcore") + "1bit_2bands.tif", filename
)
test_py_scripts.run_py_script(
script_path, "gdal_edit", filename + " -scale 2 4 -offset 10 20"
)
ds = gdal.Open(filename)
for i in [1, 2]:
assert ds.GetRasterBand(i).GetScale() == i * 2
assert ds.GetRasterBand(i).GetOffset() == i * 10
ds = None
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
# Test -colorinterp_X
def test_gdal_edit_py_8(script_path):
filename = "tmp/test_gdal_edit_py.tif"
try:
gdal.Translate(
filename,
test_py_scripts.get_data_path("gcore") + "byte.tif",
options="-b 1 -b 1 -b 1 -b 1 -co PHOTOMETRIC=RGB -co ALPHA=NO",
)
test_py_scripts.run_py_script(
script_path, "gdal_edit", filename + " -colorinterp_4 alpha"
)
ds = gdal.Open(filename)
assert ds.GetRasterBand(4).GetColorInterpretation() == gdal.GCI_AlphaBand
test_py_scripts.run_py_script(
script_path, "gdal_edit", filename + " -colorinterp_4 undefined"
)
ds = gdal.Open(filename)
assert ds.GetRasterBand(4).GetColorInterpretation() == gdal.GCI_Undefined
ds = None
finally:
gdal.GetDriverByName("GTiff").Delete(filename)
###############################################################################
def test_gdal_edit_py_unsetrpc(script_path):
filename = "tmp/test_gdal_edit_py.tif"
try:
gdal.Translate(
filename, test_py_scripts.get_data_path("gcore") + "byte_rpc.tif"
)
test_py_scripts.run_py_script(script_path, "gdal_edit", filename + " -unsetrpc")
ds = gdal.Open(filename)
assert not ds.GetMetadata("RPC")
ds = None
finally:
gdal.GetDriverByName("GTiff").Delete(filename)