358 строки
13 KiB
Python
Исполняемый файл
358 строки
13 KiB
Python
Исполняемый файл
#!/usr/bin/env pytest
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# -*- coding: utf-8 -*-
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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: Test GDALApplyVerticalShiftGrid algorithm.
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# Author: Even Rouault <even dot rouault at spatialys dot com>
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#
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###############################################################################
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# Copyright (c) 2017, Even Rouault <even dot rouault at spatialys dot 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, merge, 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 gdaltest
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import pytest
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from osgeo import gdal, osr
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# Suppress the DeprecationWarning emitted when using gdal.ApplyVerticalShiftGrid
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pytestmark = pytest.mark.filterwarnings("ignore:ApplyVerticalShiftGrid")
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###############################################################################
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# Rather dummy test: grid = DEM
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def test_applyverticalshiftgrid_1():
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src_ds = gdal.Open("../gcore/data/byte.tif")
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src_ds = gdal.Translate("", src_ds, format="MEM", width=20, height=40)
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grid_ds = gdal.Translate("", src_ds, format="MEM")
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds)
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assert out_ds.GetRasterBand(1).DataType == gdal.GDT_Byte
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assert out_ds.RasterXSize == src_ds.RasterXSize
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assert out_ds.RasterYSize == src_ds.RasterYSize
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assert out_ds.GetGeoTransform() == src_ds.GetGeoTransform()
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assert out_ds.GetProjectionRef() == src_ds.GetProjectionRef()
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# Check that we can drop the reference to the sources
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src_ds = None
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grid_ds = None
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 10038
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src_ds = gdal.Open("../gcore/data/byte.tif")
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src_ds = gdal.Translate("", src_ds, format="MEM", width=20, height=40)
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# Test block size
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, src_ds, options=["BLOCKSIZE=15"])
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 10038
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# Inverse transformer
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out_ds = gdal.ApplyVerticalShiftGrid(
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src_ds, src_ds, True, options=["DATATYPE=Float32"]
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)
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assert out_ds.GetRasterBand(1).DataType == gdal.GDT_Float32
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 0
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###############################################################################
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# Error cases
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@gdaltest.disable_exceptions()
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def test_applyverticalshiftgrid_2():
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sr = osr.SpatialReference()
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sr.SetFromUserInput("WGS84")
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for i in range(6):
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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if i != 0:
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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if i != 1:
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src_ds.SetProjection(sr.ExportToWkt())
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if i == 2:
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src_ds.AddBand(gdal.GDT_Byte)
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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if i != 3:
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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if i != 4:
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grid_ds.SetProjection(sr.ExportToWkt())
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if i == 5:
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grid_ds.AddBand(gdal.GDT_Byte)
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with gdaltest.error_handler():
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds)
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assert out_ds is None, i
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# Non invertable source geotransform
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 0, 0, 0, 0, 0])
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src_ds.SetProjection(sr.ExportToWkt())
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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grid_ds.SetProjection(sr.ExportToWkt())
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with gdaltest.error_handler():
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds)
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assert out_ds is None
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# Non invertable grid geotransform
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 0, 0, 0, 0, 0])
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grid_ds.SetProjection(sr.ExportToWkt())
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with gdaltest.error_handler():
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds)
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assert out_ds is None
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# No PROJ.4 translation for source SRS, coordinate transformation
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# initialization has failed
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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grid_ds.SetProjection('LOCAL_CS["foo"]')
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with gdaltest.error_handler():
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds)
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assert out_ds is None
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# Out of memory
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if gdal.GetConfigOption("SKIP_MEM_INTENSIVE_TEST") is None:
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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grid_ds.SetProjection(sr.ExportToWkt())
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with gdaltest.error_handler():
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out_ds = gdal.ApplyVerticalShiftGrid(
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src_ds, grid_ds, options=["BLOCKSIZE=2000000000"]
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)
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assert out_ds is None
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# Wrong DATATYPE
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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grid_ds.SetProjection(sr.ExportToWkt())
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with gdaltest.error_handler():
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds, options=["DATATYPE=x"])
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assert out_ds is None
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###############################################################################
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# Test with grid and src not in same projection
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def test_applyverticalshiftgrid_3():
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src_ds = gdal.Open("../gcore/data/byte.tif")
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grid_ds = gdal.Warp(
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"", src_ds, format="MEM", dstSRS="EPSG:4326", width=40, height=40
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)
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out_ds = gdal.ApplyVerticalShiftGrid(
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src_ds, grid_ds, options=["RESAMPLING=NEAREST"]
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)
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assert out_ds.RasterXSize == src_ds.RasterXSize
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assert out_ds.RasterYSize == src_ds.RasterYSize
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assert out_ds.GetGeoTransform() == src_ds.GetGeoTransform()
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assert out_ds.GetProjectionRef() == src_ds.GetProjectionRef()
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 5112
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out_ds = gdal.ApplyVerticalShiftGrid(
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src_ds, grid_ds, options=["RESAMPLING=BILINEAR"]
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)
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 4867 or cs == 4868
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds, options=["RESAMPLING=CUBIC"])
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs in (4841, 4854, 4842) # 4842 on Mac / Conda
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###############################################################################
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# Test nodata
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def test_applyverticalshiftgrid_4():
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sr = osr.SpatialReference()
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sr.SetFromUserInput("WGS84")
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# Nodata on source
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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src_ds.GetRasterBand(1).Fill(1)
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src_ds.GetRasterBand(1).SetNoDataValue(1)
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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grid_ds.SetProjection(sr.ExportToWkt())
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grid_ds.GetRasterBand(1).Fill(30)
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds)
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assert out_ds.GetRasterBand(1).GetNoDataValue() == 1
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 1
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# Nodata on grid
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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src_ds.GetRasterBand(1).Fill(1)
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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grid_ds.SetProjection(sr.ExportToWkt())
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grid_ds.GetRasterBand(1).Fill(30)
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grid_ds.GetRasterBand(1).SetNoDataValue(30)
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds)
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assert out_ds.GetRasterBand(1).GetNoDataValue() is None
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 1
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# ERROR_ON_MISSING_VERT_SHIFT due to non compatible extents
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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src_ds.GetRasterBand(1).Fill(255)
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([10, 1, 0, 0, 0, -1])
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grid_ds.SetProjection(sr.ExportToWkt())
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out_ds = gdal.ApplyVerticalShiftGrid(
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src_ds, grid_ds, options=["ERROR_ON_MISSING_VERT_SHIFT=YES"]
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)
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with pytest.raises(Exception):
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out_ds.GetRasterBand(1).ReadRaster()
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# ERROR_ON_MISSING_VERT_SHIFT due to nodata in grid
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src_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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src_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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src_ds.SetProjection(sr.ExportToWkt())
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src_ds.GetRasterBand(1).Fill(255)
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grid_ds = gdal.GetDriverByName("MEM").Create("", 1, 1)
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grid_ds.SetGeoTransform([0, 1, 0, 0, 0, -1])
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grid_ds.SetProjection(sr.ExportToWkt())
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grid_ds.GetRasterBand(1).SetNoDataValue(0)
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out_ds = gdal.ApplyVerticalShiftGrid(
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src_ds, grid_ds, options=["ERROR_ON_MISSING_VERT_SHIFT=YES"]
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)
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with pytest.raises(Exception):
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out_ds.GetRasterBand(1).ReadRaster()
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###############################################################################
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# Test scaling parameters
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def test_applyverticalshiftgrid_5():
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src_ds = gdal.Open("../gcore/data/byte.tif")
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grid_ds = gdal.Translate("", src_ds, format="MEM")
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grid_ds.GetRasterBand(1).Fill(0)
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src_ds = gdal.Translate(
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"",
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src_ds,
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format="MEM",
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outputType=gdal.GDT_Float32,
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scaleParams=[[0, 1, 0, 0.5]],
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)
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds, srcUnitToMeter=2)
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 4672
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src_ds = gdal.Open("../gcore/data/byte.tif")
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grid_ds = gdal.Translate("", src_ds, format="MEM")
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grid_ds.GetRasterBand(1).Fill(0)
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src_ds = gdal.Translate(
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"",
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src_ds,
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format="MEM",
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outputType=gdal.GDT_Float32,
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scaleParams=[[0, 1, 0, 0.5]],
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)
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out_ds = gdal.ApplyVerticalShiftGrid(src_ds, grid_ds, dstUnitToMeter=0.5)
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cs = out_ds.GetRasterBand(1).Checksum()
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assert cs == 4672
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###############################################################################
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# Simulate EGM grids
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@pytest.mark.require_driver("GTX")
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def test_applyverticalshiftgrid_6():
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drv = gdal.GetDriverByName("GTX")
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grid_ds = drv.Create(
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"tmp/applyverticalshiftgrid_6.gtx", 1440, 721, 1, gdal.GDT_Float32
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)
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grid_ds.SetGeoTransform([-180.125, 0.25, 0, 90.125, 0, -0.25])
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grid_ds.GetRasterBand(1).Fill(10)
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grid_ds = None
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ds = gdal.Warp(
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"",
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"../gcore/data/byte.tif",
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format="MEM",
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srcSRS="EPSG:32611",
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dstSRS="+proj=utm +zone=11 +datum=WGS84 +geoidgrids=./tmp/applyverticalshiftgrid_6.gtx +vunits=m +no_defs",
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)
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cs = ds.GetRasterBand(1).Checksum()
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assert cs == 4783
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gdal.Unlink("tmp/applyverticalshiftgrid_6.gtx")
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###############################################################################
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# Simulate USA geoid grids with long origin > 180
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@pytest.mark.require_driver("GTX")
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def test_applyverticalshiftgrid_7():
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drv = gdal.GetDriverByName("GTX")
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grid_ds = drv.Create(
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"tmp/applyverticalshiftgrid_7.gtx", 700, 721, 1, gdal.GDT_Float32
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)
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grid_ds.SetGeoTransform([-150 + 360, 0.25, 0, 90.125, 0, -0.25])
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grid_ds.GetRasterBand(1).Fill(10)
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grid_ds = None
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ds = gdal.Warp(
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"",
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"../gcore/data/byte.tif",
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format="MEM",
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srcSRS="EPSG:32611",
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dstSRS="+proj=utm +zone=11 +datum=WGS84 +geoidgrids=./tmp/applyverticalshiftgrid_7.gtx +vunits=m +no_defs",
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)
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cs = ds.GetRasterBand(1).Checksum()
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assert cs == 4783
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gdal.Unlink("tmp/applyverticalshiftgrid_7.gtx")
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