def testTransformInfo(self):
# hopefully this transform is available on all platforms!
transforms = QgsDatumTransform.datumTransformations(
QgsCoordinateReferenceSystem(4613),
QgsCoordinateReferenceSystem(4326))
self.assertTrue(len(transforms) > 0)
self.assertIn('+towgs84=-403,684,41', [
QgsDatumTransform.datumTransformToProj(t.sourceTransformId)
for t in transforms
])
self.assertEqual([''] * len(transforms), [
QgsDatumTransform.datumTransformToProj(t.destinationTransformId)
for t in transforms
])
self.assertIn('EPSG:4613', [
QgsDatumTransform.datumTransformInfo(
t.sourceTransformId).sourceCrsAuthId for t in transforms
])
self.assertEqual([''] * len(transforms), [
QgsDatumTransform.datumTransformInfo(
t.destinationTransformId).destinationCrsAuthId
for t in transforms
])
# and the reverse
transforms = QgsDatumTransform.datumTransformations(
QgsCoordinateReferenceSystem(4326),
QgsCoordinateReferenceSystem(4613))
self.assertTrue(len(transforms) > 0)
self.assertEqual([''] * len(transforms), [
QgsDatumTransform.datumTransformToProj(t.sourceTransformId)
for t in transforms
])
self.assertIn('+towgs84=-403,684,41', [
QgsDatumTransform.datumTransformToProj(t.destinationTransformId)
for t in transforms
])
self.assertEqual([''] * len(transforms), [
QgsDatumTransform.datumTransformInfo(
t.sourceTransformId).destinationCrsAuthId for t in transforms
])
self.assertIn('EPSG:4613', [
QgsDatumTransform.datumTransformInfo(
t.destinationTransformId).sourceCrsAuthId for t in transforms
])
def testStringToTransformId(self):
"""
Test converting proj strings to corresponding datum IDs
"""
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId(''), -1)
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId('not'), -1)
test_string = '+towgs84=-403,684,41'
id = QgsDatumTransform.projStringToDatumTransformId(test_string)
self.assertNotEqual(id, -1)
string = QgsDatumTransform.datumTransformToProj(id)
self.assertEqual(string, test_string)
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId(test_string.upper()), id)
def testTransformInfo(self):
# hopefully this transform is available on all platforms!
transforms = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4613), QgsCoordinateReferenceSystem(4326))
self.assertTrue(len(transforms) > 0)
self.assertIn('+towgs84=-403,684,41', [QgsDatumTransform.datumTransformToProj(t.sourceTransformId) for t in transforms])
self.assertEqual([''] * len(transforms), [QgsDatumTransform.datumTransformToProj(t.destinationTransformId) for t in transforms])
self.assertIn('EPSG:4613', [QgsDatumTransform.datumTransformInfo(t.sourceTransformId).sourceCrsAuthId for t in
transforms])
self.assertEqual([''] * len(transforms), [QgsDatumTransform.datumTransformInfo(t.destinationTransformId).destinationCrsAuthId for t in
transforms])
# and the reverse
transforms = QgsDatumTransform.datumTransformations(QgsCoordinateReferenceSystem(4326), QgsCoordinateReferenceSystem(4613))
self.assertTrue(len(transforms) > 0)
self.assertEqual([''] * len(transforms), [QgsDatumTransform.datumTransformToProj(t.sourceTransformId) for t in transforms])
self.assertIn('+towgs84=-403,684,41',
[QgsDatumTransform.datumTransformToProj(t.destinationTransformId) for t in transforms])
self.assertEqual([''] * len(transforms), [QgsDatumTransform.datumTransformInfo(t.sourceTransformId).destinationCrsAuthId for t in
transforms])
self.assertIn('EPSG:4613', [QgsDatumTransform.datumTransformInfo(t.destinationTransformId).sourceCrsAuthId for t in
transforms])
def testStringToTransformId(self):
"""
Test converting proj strings to corresponding datum IDs
"""
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId(''), -1)
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId('not'), -1)
test_string = '+towgs84=-403,684,41'
id = QgsDatumTransform.projStringToDatumTransformId(test_string)
self.assertNotEqual(id, -1)
string = QgsDatumTransform.datumTransformToProj(id)
self.assertEqual(string, test_string)
self.assertEqual(QgsDatumTransform.projStringToDatumTransformId(test_string.upper()), id)
def testOperationsCruftyProj(self):
w = QgsCoordinateOperationWidget()
self.assertFalse(w.hasSelection())
spy = QSignalSpy(w.operationChanged)
w.setSourceCrs(QgsCoordinateReferenceSystem('EPSG:4283'))
self.assertEqual(len(spy), 0)
w.setDestinationCrs(QgsCoordinateReferenceSystem('EPSG:7844'))
self.assertEqual(len(spy), 1)
self.assertTrue(w.hasSelection())
self.assertEqual(len(w.availableOperations()), 2)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.defaultOperation().sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal_and_distortion.gsb')
self.assertEqual(w.defaultOperation().destinationTransformId, -1)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.selectedOperation().sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal_and_distortion.gsb')
self.assertEqual(w.selectedOperation().destinationTransformId, -1)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.availableOperations()[1].sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal.gsb')
self.assertEqual(w.availableOperations()[1].destinationTransformId, -1)
op = QgsCoordinateOperationWidget.OperationDetails()
op.sourceTransformId = w.availableOperations()[1].sourceTransformId
w.setSelectedOperation(op)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.selectedOperation().sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal.gsb')
self.assertEqual(len(spy), 2)
w.setSelectedOperation(op)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.selectedOperation().sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal.gsb')
self.assertEqual(len(spy), 2)
op.sourceTransformId = w.availableOperations()[0].sourceTransformId
op.destinationTransformId = -1
w.setSelectedOperation(op)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.selectedOperation().sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal_and_distortion.gsb')
self.assertEqual(len(spy), 3)
op.destinationTransformId = w.availableOperations(
)[1].sourceTransformId
op.sourceTransformId = -1
w.setSelectedOperation(op)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.selectedOperation().sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal.gsb')
self.assertEqual(len(spy), 4)
op.destinationTransformId = w.availableOperations(
)[0].sourceTransformId
op.sourceTransformId = -1
w.setSelectedOperation(op)
self.assertEqual(
QgsDatumTransform.datumTransformToProj(
w.selectedOperation().sourceTransformId),
'+nadgrids=GDA94_GDA2020_conformal_and_distortion.gsb')
self.assertEqual(len(spy), 5)
