88 строки
3.1 KiB
Python
Исполняемый файл
88 строки
3.1 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 TransformGeoloc algorithm.
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# Author: Frank Warmerdam <warmerdam@pobox.com>
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#
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###############################################################################
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# Copyright (c) 2012, Frank Warmerdam <warmerdam@pobox.com>
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# Copyright (c) 2012, 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, 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 pytest
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from osgeo import gdal, osr
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###############################################################################
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# Test a fairly default case.
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def test_transformgeoloc_1():
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numpy = pytest.importorskip("numpy")
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# Setup 2x2 geolocation arrays in a memory dataset with lat/long values.
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drv = gdal.GetDriverByName("MEM")
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geoloc_ds = drv.Create("geoloc_1", 2, 2, 3, gdal.GDT_Float64)
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lon_array = numpy.asarray([[-117.0, -116.0], [-116.5, -115.5]])
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lat_array = numpy.asarray([[45.0, 45.5], [44.0, 44.5]])
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geoloc_ds.GetRasterBand(1).WriteArray(lon_array)
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geoloc_ds.GetRasterBand(2).WriteArray(lat_array)
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# Z left as default zero.
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# Create a wgs84 to utm transformer.
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wgs84_wkt = osr.GetUserInputAsWKT("WGS84")
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utm_wkt = osr.GetUserInputAsWKT("+proj=utm +zone=11 +datum=WGS84")
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ll_utm_transformer = gdal.Transformer(
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None, None, ["SRC_SRS=" + wgs84_wkt, "DST_SRS=" + utm_wkt]
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)
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# transform the geoloc dataset in place.
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status = ll_utm_transformer.TransformGeolocations(
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geoloc_ds.GetRasterBand(1),
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geoloc_ds.GetRasterBand(2),
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geoloc_ds.GetRasterBand(3),
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)
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assert status == 0
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expected = numpy.asarray(
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[
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[[500000.0, 578126.73752062], [540087.07398217, 619246.88515195]],
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[
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[4982950.40022655, 5038982.81207855],
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[4871994.34702622, 4928503.38229753],
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],
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[[0.0, 0.0], [0.0, 0.0]],
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]
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)
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assert numpy.allclose(geoloc_ds.ReadAsArray(), expected)
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