本文整理汇总了Python中qgis.core.QgsProject.setTransformContext方法的典型用法代码示例。如果您正苦于以下问题：Python QgsProject.setTransformContext方法的具体用法？Python QgsProject.setTransformContext怎么用？Python QgsProject.setTransformContext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.QgsProject的用法示例。
在下文中一共展示了QgsProject.setTransformContext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: testTransformContextSignalIsEmitted
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import setTransformContext [as 别名]
def testTransformContextSignalIsEmitted(self):
"""Test that when a project transform context changes a transformContextChanged signal is emitted"""
p = QgsProject()
spy = QSignalSpy(p.transformContextChanged)
ctx = QgsCoordinateTransformContext()
ctx.addSourceDestinationDatumTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857), 1234, 1235)
p.setTransformContext(ctx)
self.assertEqual(len(spy), 1)示例2: testProject
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import setTransformContext [as 别名]
def testProject(self):
"""
Test project's transform context
"""
project = QgsProject()
context_changed_spy = QSignalSpy(project.transformContextChanged)
context = project.transformContext()
context.addSourceDestinationDatumTransform(QgsCoordinateReferenceSystem('EPSG:3111'),
QgsCoordinateReferenceSystem('EPSG:4283'), 1, 2)
project.setTransformContext(context)
self.assertEqual(len(context_changed_spy), 1)
self.assertEqual(project.transformContext().sourceDestinationDatumTransforms(), {('EPSG:3111', 'EPSG:4283'): QgsDatumTransform.TransformPair(1, 2)})示例3: testProjectContextProj6
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import setTransformContext [as 别名]
def testProjectContextProj6(self):
"""
Test creating transform using convenience constructor which takes project reference
"""
p = QgsProject()
context = p.transformContext()
context.addCoordinateOperation(QgsCoordinateReferenceSystem('EPSG:28356'),
QgsCoordinateReferenceSystem('EPSG:3111'), 'proj')
p.setTransformContext(context)
transform = QgsCoordinateTransform(QgsCoordinateReferenceSystem('EPSG:28356'), QgsCoordinateReferenceSystem('EPSG:3111'), p)
self.assertEqual(transform.coordinateOperation(), 'proj')示例4: testProjectContext
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import setTransformContext [as 别名]
def testProjectContext(self):
"""
Test creating transform using convenience constructor which takes project reference
"""
p = QgsProject()
context = p.transformContext()
context.addSourceDestinationDatumTransform(QgsCoordinateReferenceSystem('EPSG:28356'),
QgsCoordinateReferenceSystem('EPSG:3111'), 1, 2)
p.setTransformContext(context)
transform = QgsCoordinateTransform(QgsCoordinateReferenceSystem('EPSG:28356'), QgsCoordinateReferenceSystem('EPSG:3111'), p)
self.assertEqual(transform.sourceDatumTransformId(), 1)
self.assertEqual(transform.destinationDatumTransformId(), 2)示例5: testTransformContextInheritsFromProject
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import setTransformContext [as 别名]
def testTransformContextInheritsFromProject(self):
"""Test that when a layer is added to a project it inherits its context"""
rl = QgsRasterLayer(self.rpath, 'raster')
self.assertFalse(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p = QgsProject()
self.assertFalse(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.setTransformContext(self.ctx)
self.assertTrue(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.addMapLayers([rl])
self.assertTrue(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))示例6: testProjectProj6
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import setTransformContext [as 别名]
def testProjectProj6(self):
"""
Test project's transform context
"""
project = QgsProject()
context_changed_spy = QSignalSpy(project.transformContextChanged)
context = project.transformContext()
context.addCoordinateOperation(QgsCoordinateReferenceSystem('EPSG:3111'),
QgsCoordinateReferenceSystem('EPSG:4283'), 'proj')
project.setTransformContext(context)
self.assertEqual(len(context_changed_spy), 1)
self.assertEqual(project.transformContext().coordinateOperations(),
{('EPSG:3111', 'EPSG:4283'): 'proj'})示例7: testTransformContextIsSyncedFromProject
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import setTransformContext [as 别名]
def testTransformContextIsSyncedFromProject(self):
"""Test that when a layer is synced when project context changes"""
rl = QgsRasterLayer(self.rpath, 'raster')
self.assertFalse(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p = QgsProject()
self.assertFalse(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.setTransformContext(self.ctx)
self.assertTrue(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.addMapLayers([rl])
self.assertTrue(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
# Now change the project context
tc2 = QgsCoordinateTransformContext()
p.setTransformContext(tc2)
self.assertFalse(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
self.assertFalse(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
p.setTransformContext(self.ctx)
self.assertTrue(p.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))
self.assertTrue(rl.transformContext().hasTransform(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(3857)))