477 строки
14 KiB
Python
477 строки
14 KiB
Python
#!/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: To test the functionality of ogr_layer_algebra script
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# Author: Radha Krishna Kavuluru <kssvrk@gmail.com>
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#
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###############################################################################
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# Copyright (c) 2022, Radha Krishna Kavuluru <kssvrk@gmail.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 ogrtest
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import pytest
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import test_py_scripts
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from osgeo import ogr
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pytestmark = [
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pytest.mark.skipif(
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test_py_scripts.get_py_script("ogr_layer_algebra") is None,
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reason="ogr_layer_algebra.py not available",
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),
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pytest.mark.skipif(not ogrtest.have_geos(), reason="GEOS missing"),
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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("ogr_layer_algebra")
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###############################################################################
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# Test Intersection
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def test_ogr_layer_algebra_intersection(script_path):
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# Create input,method,output paths for intersection.
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input_path = "tmp/input_layer.shp"
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method_path = "tmp/method_layer.shp"
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output_path = "tmp/output_layer.shp"
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# definition of input,method layers
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input_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(input_path)
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method_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(method_path)
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A = input_layer.CreateLayer("poly")
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B = method_layer.CreateLayer("poly")
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a1 = "POLYGON((1 2, 1 3, 3 3, 3 2, 1 2))"
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a2 = "POLYGON((5 2, 5 3, 7 3, 7 2, 5 2))"
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b1 = "POLYGON((2 1, 2 4, 6 4, 6 1, 2 1))"
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a1))
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A.CreateFeature(feat)
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a2))
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A.CreateFeature(feat)
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input_layer = None
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b1))
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B.CreateFeature(feat)
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method_layer = None
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# executing script
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test_py_scripts.run_py_script(
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script_path,
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"ogr_layer_algebra",
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f"Intersection -input_ds {input_path} -output_ds {output_path} -method_ds {method_path}",
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)
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driver = ogr.GetDriverByName("ESRI Shapefile")
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dataSource = driver.Open(output_path, 0)
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layer = dataSource.GetLayer()
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featureCount = layer.GetFeatureCount()
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# deleting shapefiles after test
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driver.DeleteDataSource(input_path)
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driver.DeleteDataSource(method_path)
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driver.DeleteDataSource(output_path)
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assert featureCount == 2
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###############################################################################
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# Test Union
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def test_ogr_layer_algebra_union(script_path):
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# Create input,method,output paths for intersection.
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input_path = "tmp/input_layer.shp"
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method_path = "tmp/method_layer.shp"
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output_path = "tmp/output_layer.shp"
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# definition of input,method layers
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input_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(input_path)
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method_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(method_path)
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A = input_layer.CreateLayer("poly")
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B = method_layer.CreateLayer("poly")
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a1 = "POLYGON((1 2, 1 3, 3 3, 3 2, 1 2))"
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a2 = "POLYGON((5 2, 5 3, 7 3, 7 2, 5 2))"
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b1 = "POLYGON((2 1, 2 4, 6 4, 6 1, 2 1))"
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a1))
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A.CreateFeature(feat)
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a2))
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A.CreateFeature(feat)
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input_layer = None
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b1))
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B.CreateFeature(feat)
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method_layer = None
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# executing script
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test_py_scripts.run_py_script(
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script_path,
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"ogr_layer_algebra",
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f"Union -input_ds {input_path} -output_ds {output_path} -method_ds {method_path}",
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)
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driver = ogr.GetDriverByName("ESRI Shapefile")
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dataSource = driver.Open(output_path, 0)
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layer = dataSource.GetLayer()
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featureCount = layer.GetFeatureCount()
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# deleting shapefiles after test
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driver.DeleteDataSource(input_path)
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driver.DeleteDataSource(method_path)
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driver.DeleteDataSource(output_path)
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assert featureCount == 5
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###############################################################################
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# Test Symmetric Difference
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def test_ogr_layer_algebra_symdifference(script_path):
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# Create input,method,output paths for intersection.
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input_path = "tmp/input_layer.shp"
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method_path = "tmp/method_layer.shp"
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output_path = "tmp/output_layer.shp"
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# definition of input,method layers
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input_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(input_path)
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method_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(method_path)
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A = input_layer.CreateLayer("poly")
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B = method_layer.CreateLayer("poly")
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a1 = "POLYGON((1 2, 1 3, 3 3, 3 2, 1 2))"
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a2 = "POLYGON((5 2, 5 3, 7 3, 7 2, 5 2))"
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b1 = "POLYGON((2 1, 2 4, 6 4, 6 1, 2 1))"
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b2 = "POLYGON((2 4, 2 6, 6 6, 6 4, 2 4))"
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a1))
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A.CreateFeature(feat)
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a2))
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A.CreateFeature(feat)
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input_layer = None
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b1))
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B.CreateFeature(feat)
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b2))
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B.CreateFeature(feat)
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method_layer = None
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# executing script
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test_py_scripts.run_py_script(
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script_path,
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"ogr_layer_algebra",
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f"SymDifference -input_ds {input_path} -output_ds {output_path} -method_ds {method_path}",
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)
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driver = ogr.GetDriverByName("ESRI Shapefile")
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dataSource = driver.Open(output_path, 0)
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layer = dataSource.GetLayer()
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featureCount = layer.GetFeatureCount()
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# deleting shapefiles after test
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driver.DeleteDataSource(input_path)
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driver.DeleteDataSource(method_path)
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driver.DeleteDataSource(output_path)
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assert featureCount == 4
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###############################################################################
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# Test Identity
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def test_ogr_layer_algebra_identity(script_path):
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# Create input,method,output paths for intersection.
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input_path = "tmp/input_layer.shp"
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method_path = "tmp/method_layer.shp"
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output_path = "tmp/output_layer.shp"
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# definition of input,method layers
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input_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(input_path)
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method_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(method_path)
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A = input_layer.CreateLayer("poly")
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B = method_layer.CreateLayer("poly")
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a1 = "POLYGON((1 2, 1 3, 3 3, 3 2, 1 2))"
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a2 = "POLYGON((5 2, 5 3, 7 3, 7 2, 5 2))"
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b1 = "POLYGON((2 1, 2 4, 6 4, 6 1, 2 1))"
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b2 = "POLYGON((2 4, 2 6, 6 6, 6 4, 2 4))"
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a1))
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A.CreateFeature(feat)
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a2))
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A.CreateFeature(feat)
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input_layer = None
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b1))
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B.CreateFeature(feat)
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b2))
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B.CreateFeature(feat)
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method_layer = None
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# executing script
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test_py_scripts.run_py_script(
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script_path,
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"ogr_layer_algebra",
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f"Identity -input_ds {input_path} -output_ds {output_path} -method_ds {method_path}",
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)
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driver = ogr.GetDriverByName("ESRI Shapefile")
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dataSource = driver.Open(output_path, 0)
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layer = dataSource.GetLayer()
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featureCount = layer.GetFeatureCount()
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# deleting shapefiles after test
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driver.DeleteDataSource(input_path)
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driver.DeleteDataSource(method_path)
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driver.DeleteDataSource(output_path)
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assert featureCount == 4
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###############################################################################
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# Test Update
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def test_ogr_layer_algebra_update(script_path):
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# Create input,method,output paths for intersection.
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input_path = "tmp/input_layer.shp"
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method_path = "tmp/method_layer.shp"
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output_path = "tmp/output_layer.shp"
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# definition of input,method layers
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input_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(input_path)
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method_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(method_path)
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A = input_layer.CreateLayer("poly")
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B = method_layer.CreateLayer("poly")
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a1 = "POLYGON((1 2, 1 3, 3 3, 3 2, 1 2))"
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a2 = "POLYGON((5 2, 5 3, 7 3, 7 2, 5 2))"
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b1 = "POLYGON((2 1, 2 4, 6 4, 6 1, 2 1))"
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a1))
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A.CreateFeature(feat)
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a2))
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A.CreateFeature(feat)
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input_layer = None
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b1))
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B.CreateFeature(feat)
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method_layer = None
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# executing script
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test_py_scripts.run_py_script(
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script_path,
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"ogr_layer_algebra",
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f"Update -input_ds {input_path} -output_ds {output_path} -method_ds {method_path}",
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)
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driver = ogr.GetDriverByName("ESRI Shapefile")
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dataSource = driver.Open(output_path, 0)
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layer = dataSource.GetLayer()
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featureCount = layer.GetFeatureCount()
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# deleting shapefiles after test
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driver.DeleteDataSource(input_path)
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driver.DeleteDataSource(method_path)
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driver.DeleteDataSource(output_path)
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assert featureCount == 3
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###############################################################################
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# Test Clip
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def test_ogr_layer_algebra_clip(script_path):
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# Create input,method,output paths for intersection.
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input_path = "tmp/input_layer.shp"
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method_path = "tmp/method_layer.shp"
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output_path = "tmp/output_layer.shp"
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# definition of input,method layers
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input_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(input_path)
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method_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(method_path)
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A = input_layer.CreateLayer("poly")
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B = method_layer.CreateLayer("poly")
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a1 = "POLYGON((1 2, 1 3, 3 3, 3 2, 1 2))"
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a2 = "POLYGON((5 2, 5 3, 7 3, 7 2, 5 2))"
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b1 = "POLYGON((2 1, 2 4, 6 4, 6 1, 2 1))"
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a1))
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A.CreateFeature(feat)
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a2))
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A.CreateFeature(feat)
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input_layer = None
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b1))
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B.CreateFeature(feat)
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method_layer = None
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# executing script
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test_py_scripts.run_py_script(
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script_path,
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"ogr_layer_algebra",
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f"Clip -input_ds {input_path} -output_ds {output_path} -method_ds {method_path}",
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)
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driver = ogr.GetDriverByName("ESRI Shapefile")
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dataSource = driver.Open(output_path, 0)
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layer = dataSource.GetLayer()
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featureCount = layer.GetFeatureCount()
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# deleting shapefiles after test
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driver.DeleteDataSource(input_path)
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driver.DeleteDataSource(method_path)
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driver.DeleteDataSource(output_path)
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assert featureCount == 2
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###############################################################################
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# Test Erase
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def test_ogr_layer_algebra_erase(script_path):
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# Create input,method,output paths for intersection.
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input_path = "tmp/input_layer.shp"
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method_path = "tmp/method_layer.shp"
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output_path = "tmp/output_layer.shp"
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# definition of input,method layers
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input_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(input_path)
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method_layer = ogr.GetDriverByName("ESRI Shapefile").CreateDataSource(method_path)
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A = input_layer.CreateLayer("poly")
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B = method_layer.CreateLayer("poly")
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a1 = "POLYGON((1 2, 1 3, 3 3, 3 2, 1 2))"
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a2 = "POLYGON((5 2, 5 3, 7 3, 7 2, 5 2))"
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b1 = "POLYGON((2 1, 2 4, 6 4, 6 1, 2 1))"
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b2 = "POLYGON((2 4, 2 6, 6 6, 6 4, 2 4))"
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a1))
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A.CreateFeature(feat)
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feat = ogr.Feature(A.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=a2))
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A.CreateFeature(feat)
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input_layer = None
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b1))
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B.CreateFeature(feat)
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feat = ogr.Feature(B.GetLayerDefn())
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feat.SetGeometryDirectly(ogr.Geometry(wkt=b2))
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B.CreateFeature(feat)
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method_layer = None
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# executing script
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test_py_scripts.run_py_script(
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script_path,
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"ogr_layer_algebra",
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f"Erase -input_ds {input_path} -output_ds {output_path} -method_ds {method_path}",
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)
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driver = ogr.GetDriverByName("ESRI Shapefile")
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dataSource = driver.Open(output_path, 0)
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layer = dataSource.GetLayer()
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featureCount = layer.GetFeatureCount()
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# deleting shapefiles after test
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driver.DeleteDataSource(input_path)
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driver.DeleteDataSource(method_path)
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driver.DeleteDataSource(output_path)
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assert featureCount == 2
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