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)
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)
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)})
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)})
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')
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')
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)
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)
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)))
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)))
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'})
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'})
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)))
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)))
