本文整理汇总了Python中qgis.core.QgsVectorLayer.splitFeatures方法的典型用法代码示例。如果您正苦于以下问题：Python QgsVectorLayer.splitFeatures方法的具体用法？Python QgsVectorLayer.splitFeatures怎么用？Python QgsVectorLayer.splitFeatures使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.core.QgsVectorLayer的用法示例。
在下文中一共展示了QgsVectorLayer.splitFeatures方法的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_SplitTruToCreateCutEdge
# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]
# 或者: from qgis.core.QgsVectorLayer import splitFeatures [as 别名]
def test_SplitTruToCreateCutEdge(self):
"""Try to creat a cut edge"""
layer = QgsVectorLayer("dbname=test.sqlite table=test_pg (geometry)", "test_pg", "spatialite")
assert(layer.isValid())
assert(layer.hasGeometryType())
layer.featureCount() == 1 or die("wrong number of features")
layer.startEditing()
layer.splitFeatures([QgsPoint(1.5, -0.5), QgsPoint(1.5, 1.5)], 0) == 0 or die("error when trying to create an invalid polygon in split")
layer.commitChanges() or die("this commit should work")
layer.featureCount() == 1 or die("wrong number of features, polygon should be unafected by cut")示例2: test_SplitMultipolygon
# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]
# 或者: from qgis.core.QgsVectorLayer import splitFeatures [as 别名]
def test_SplitMultipolygon(self):
"""Split multipolygon"""
layer = QgsVectorLayer("dbname=test.sqlite table=test_mpg (geometry)", "test_mpg", "spatialite")
assert(layer.isValid())
assert(layer.hasGeometryType())
layer.featureCount() == 1 or die("wrong number of features")
layer.startEditing()
layer.splitFeatures([QgsPoint(0.5, -0.5), QgsPoint(0.5, 1.5)], 0) == 0 or die("error in split of one polygon of multipolygon")
layer.splitFeatures([QgsPoint(2.5, -0.5), QgsPoint(2.5, 4)], 0) == 0 or die("error in split of two polygons of multipolygon at a time")
layer.commitChanges() or die("this commit should work")
layer.featureCount() == 7 or die("wrong number of features after 2 split")示例3: test_SplitFeature
# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]
# 或者: from qgis.core.QgsVectorLayer import splitFeatures [as 别名]
def test_SplitFeature(self):
"""Create spatialite database"""
layer = QgsVectorLayer("dbname=%s table=test_pg (geometry)" % self.dbname, "test_pg", "spatialite")
assert(layer.isValid())
assert(layer.hasGeometryType())
layer.startEditing()
layer.splitFeatures([QgsPoint(0.5, -0.5), QgsPoint(0.5, 1.5)], 0) == 0 or die("error in split")
layer.splitFeatures([QgsPoint(-0.5, 0.5), QgsPoint(1.5, 0.5)], 0) == 0 or die("error in split")
if not layer.commitChanges():
die("this commit should work")
layer.featureCount() == 4 or die("we should have 4 features after 2 split")示例4: test_SplitFeatureWithMultiKey
# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]
# 或者: from qgis.core.QgsVectorLayer import splitFeatures [as 别名]
def test_SplitFeatureWithMultiKey(self):
"""Create SpatiaLite database"""
layer = QgsVectorLayer("dbname=%s table=test_pg_mk (geometry)" % self.dbname, "test_pg_mk", "spatialite")
self.assertTrue(layer.isValid())
self.assertTrue(layer.isSpatial())
layer.startEditing()
self.assertEqual(layer.splitFeatures([QgsPointXY(0.5, -0.5), QgsPointXY(0.5, 1.5)], 0), 0)
self.assertEqual(layer.splitFeatures([QgsPointXY(-0.5, 0.5), QgsPointXY(1.5, 0.5)], 0), 0)
self.assertTrue(layer.commitChanges())示例5: test_SplitFeature
# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]
# 或者: from qgis.core.QgsVectorLayer import splitFeatures [as 别名]
def test_SplitFeature(self):
"""Create spatialite database"""
layer = QgsVectorLayer("dbname=%s table=test_pg (geometry)" % self.dbname, "test_pg", "spatialite")
self.assertTrue(layer.isValid())
self.assertTrue(layer.hasGeometryType())
layer.startEditing()
self.assertEqual(layer.splitFeatures([QgsPoint(0.5, -0.5), QgsPoint(0.5, 1.5)], 0), 0)
self.assertEqual(layer.splitFeatures([QgsPoint(-0.5, 0.5), QgsPoint(1.5, 0.5)], 0), 0)
self.assertTrue(layer.commitChanges())
self.assertEqual(layer.featureCount(), 4)示例6: xtest_SplitFeatureWithFailedCommit
# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]
# 或者: from qgis.core.QgsVectorLayer import splitFeatures [as 别名]
def xtest_SplitFeatureWithFailedCommit(self):
"""Create spatialite database"""
layer = QgsVectorLayer("dbname=%s table=test_pg_mk (geometry)" % self.dbname, "test_pg_mk", "spatialite")
assert(layer.isValid())
assert(layer.hasGeometryType())
layer.startEditing()
layer.splitFeatures([QgsPoint(0.5, -0.5), QgsPoint(0.5, 1.5)], 0) == 0 or die("error in split")
layer.splitFeatures([QgsPoint(-0.5, 0.5), QgsPoint(1.5, 0.5)], 0) == 0 or die("error in split")
if layer.commitChanges():
die("this commit should fail")
layer.rollBack()
feat = QgsFeature()
it = layer.getFeatures()
it.nextFeature(feat)
ref = [[(0, 0), (1, 0), (1, 1), (0, 1), (0, 0)]]
res = feat.geometry().asPolygon()
for ring1, ring2 in zip(ref, res):
for p1, p2 in zip(ring1, ring2):
for c1, c2 in zip(p1, p2):
c1 == c2 or die("polygon has been altered by failed edition")示例7: xtest_SplitFeatureWithFailedCommit
# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]
# 或者: from qgis.core.QgsVectorLayer import splitFeatures [as 别名]
def xtest_SplitFeatureWithFailedCommit(self):
"""Create spatialite database"""
layer = QgsVectorLayer("dbname=%s table=test_pg_mk (geometry)" % self.dbname, "test_pg_mk", "spatialite")
self.assertTrue(layer.isValid())
self.assertTrue(layer.hasGeometryType())
layer.startEditing()
self.asserEqual(layer.splitFeatures([QgsPoint(0.5, -0.5), QgsPoint(0.5, 1.5)], 0), 0)
self.asserEqual(layer.splitFeatures([QgsPoint(-0.5, 0.5), QgsPoint(1.5, 0.5)], 0), 0)
self.assertFalse(layer.commitChanges())
layer.rollBack()
feat = next(layer.getFeatures())
ref = [[(0, 0), (1, 0), (1, 1), (0, 1), (0, 0)]]
res = feat.geometry().asPolygon()
for ring1, ring2 in zip(ref, res):
for p1, p2 in zip(ring1, ring2):
for c1, c2 in zip(p1, p2):
self.asserEqual(c1, c2)