def test_signalConnection(self):
# remove all layers
QgsProject.instance().removeAllMapLayers()
# set dependencies and add back layers
self.pointsLayer = QgsVectorLayer("dbname='%s' table=\"node\" (geom) sql=" % self.fn, "points", "spatialite")
assert self.pointsLayer.isValid()
self.linesLayer = QgsVectorLayer("dbname='%s' table=\"section\" (geom) sql=" % self.fn, "lines", "spatialite")
assert self.linesLayer.isValid()
self.pointsLayer2 = QgsVectorLayer(
"dbname='%s' table=\"node2\" (geom) sql=" % self.fn, "_points2", "spatialite"
)
assert self.pointsLayer2.isValid()
self.pointsLayer.setDependencies([QgsMapLayerDependency(self.linesLayer.id())])
self.pointsLayer2.setDependencies([QgsMapLayerDependency(self.pointsLayer.id())])
# this should update connections between layers
QgsProject.instance().addMapLayers([self.pointsLayer])
QgsProject.instance().addMapLayers([self.linesLayer])
QgsProject.instance().addMapLayers([self.pointsLayer2])
ms = QgsMapSettings()
ms.setOutputSize(QSize(100, 100))
ms.setExtent(QgsRectangle(0, 0, 1, 1))
self.assertTrue(ms.hasValidSettings())
u = QgsSnappingUtils()
u.setMapSettings(ms)
cfg = u.config()
cfg.setEnabled(True)
cfg.setMode(QgsSnappingConfig.AdvancedConfiguration)
cfg.setIndividualLayerSettings(
self.pointsLayer,
QgsSnappingConfig.IndividualLayerSettings(True, QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels),
)
cfg.setIndividualLayerSettings(
self.pointsLayer2,
QgsSnappingConfig.IndividualLayerSettings(True, QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels),
)
u.setConfig(cfg)
# add another line
f = QgsFeature(self.linesLayer.fields())
f.setFeatureId(4)
geom = QgsGeometry.fromWkt("LINESTRING(0.5 0.2,0.6 0)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
# check the second snapped point is ok
m = u.snapToMap(QPoint(75, 100 - 0))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPoint(0.8, 0.0))
self.pointsLayer.setDependencies([])
self.pointsLayer2.setDependencies([])
def test_signalConnection(self):
# remove all layers
QgsProject.instance().removeAllMapLayers()
# set dependencies and add back layers
self.pointsLayer = QgsVectorLayer("dbname='%s' table=\"node\" (geom) sql=" % self.fn, "points", "spatialite")
assert (self.pointsLayer.isValid())
self.linesLayer = QgsVectorLayer("dbname='%s' table=\"section\" (geom) sql=" % self.fn, "lines", "spatialite")
assert (self.linesLayer.isValid())
self.pointsLayer2 = QgsVectorLayer("dbname='%s' table=\"node2\" (geom) sql=" % self.fn, "_points2", "spatialite")
assert (self.pointsLayer2.isValid())
self.pointsLayer.setDependencies([QgsMapLayerDependency(self.linesLayer.id())])
self.pointsLayer2.setDependencies([QgsMapLayerDependency(self.pointsLayer.id())])
# this should update connections between layers
QgsProject.instance().addMapLayers([self.pointsLayer])
QgsProject.instance().addMapLayers([self.linesLayer])
QgsProject.instance().addMapLayers([self.pointsLayer2])
ms = QgsMapSettings()
ms.setOutputSize(QSize(100, 100))
ms.setExtent(QgsRectangle(0, 0, 1, 1))
self.assertTrue(ms.hasValidSettings())
u = QgsSnappingUtils()
u.setMapSettings(ms)
cfg = u.config()
cfg.setEnabled(True)
cfg.setMode(QgsSnappingConfig.AdvancedConfiguration)
cfg.setIndividualLayerSettings(self.pointsLayer,
QgsSnappingConfig.IndividualLayerSettings(True,
QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels))
cfg.setIndividualLayerSettings(self.pointsLayer2,
QgsSnappingConfig.IndividualLayerSettings(True,
QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels))
u.setConfig(cfg)
# add another line
f = QgsFeature(self.linesLayer.fields())
f.setId(4)
geom = QgsGeometry.fromWkt("LINESTRING(0.5 0.2,0.6 0)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
# check the second snapped point is OK
m = u.snapToMap(QPoint(75, 100 - 0))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPointXY(0.8, 0.0))
self.pointsLayer.setDependencies([])
self.pointsLayer2.setDependencies([])
def test_resetSnappingIndex(self):
self.pointsLayer.setDependencies([])
self.linesLayer.setDependencies([])
self.pointsLayer2.setDependencies([])
ms = QgsMapSettings()
ms.setOutputSize(QSize(100, 100))
ms.setExtent(QgsRectangle(0, 0, 1, 1))
self.assertTrue(ms.hasValidSettings())
u = QgsSnappingUtils()
u.setMapSettings(ms)
cfg = u.config()
cfg.setMode(QgsSnappingConfig.AdvancedConfiguration)
cfg.setIndividualLayerSettings(self.pointsLayer,
QgsSnappingConfig.IndividualLayerSettings(True,
QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels))
u.setConfig(cfg)
m = u.snapToMap(QPoint(95, 100))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPoint(1, 0))
f = QgsFeature(self.linesLayer.fields())
f.setFeatureId(1)
geom = QgsGeometry.fromWkt("LINESTRING(0 0,1 1)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
l1 = len([f for f in self.pointsLayer.getFeatures()])
self.assertEqual(l1, 4)
m = u.snapToMap(QPoint(95, 0))
# snapping not updated
self.pointsLayer.setDependencies([])
self.assertEqual(m.isValid(), False)
# set layer dependencies
self.pointsLayer.setDependencies([QgsMapLayerDependency(self.linesLayer.id())])
# add another line
f = QgsFeature(self.linesLayer.fields())
f.setFeatureId(2)
geom = QgsGeometry.fromWkt("LINESTRING(0 0,0.5 0.5)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
# check the snapped point is ok
m = u.snapToMap(QPoint(45, 50))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPoint(0.5, 0.5))
self.pointsLayer.setDependencies([])
# test chained layer dependencies A -> B -> C
cfg.setIndividualLayerSettings(self.pointsLayer2,
QgsSnappingConfig.IndividualLayerSettings(True,
QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels))
u.setConfig(cfg)
self.pointsLayer.setDependencies([QgsMapLayerDependency(self.linesLayer.id())])
self.pointsLayer2.setDependencies([QgsMapLayerDependency(self.pointsLayer.id())])
# add another line
f = QgsFeature(self.linesLayer.fields())
f.setFeatureId(3)
geom = QgsGeometry.fromWkt("LINESTRING(0 0.2,0.5 0.8)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
# check the second snapped point is ok
m = u.snapToMap(QPoint(75, 100 - 80))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPoint(0.7, 0.8))
self.pointsLayer.setDependencies([])
self.pointsLayer2.setDependencies([])
def test_resetSnappingIndex(self):
self.pointsLayer.setDependencies([])
self.linesLayer.setDependencies([])
self.pointsLayer2.setDependencies([])
ms = QgsMapSettings()
ms.setOutputSize(QSize(100, 100))
ms.setExtent(QgsRectangle(0, 0, 1, 1))
self.assertTrue(ms.hasValidSettings())
u = QgsSnappingUtils()
u.setMapSettings(ms)
cfg = u.config()
cfg.setEnabled(True)
cfg.setMode(QgsSnappingConfig.AdvancedConfiguration)
cfg.setIndividualLayerSettings(self.pointsLayer,
QgsSnappingConfig.IndividualLayerSettings(True,
QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels))
u.setConfig(cfg)
m = u.snapToMap(QPoint(95, 100))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPointXY(1, 0))
f = QgsFeature(self.linesLayer.fields())
f.setId(1)
geom = QgsGeometry.fromWkt("LINESTRING(0 0,1 1)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
l1 = len([f for f in self.pointsLayer.getFeatures()])
self.assertEqual(l1, 4)
m = u.snapToMap(QPoint(95, 0))
# snapping not updated
self.pointsLayer.setDependencies([])
self.assertEqual(m.isValid(), False)
# set layer dependencies
self.pointsLayer.setDependencies([QgsMapLayerDependency(self.linesLayer.id())])
# add another line
f = QgsFeature(self.linesLayer.fields())
f.setId(2)
geom = QgsGeometry.fromWkt("LINESTRING(0 0,0.5 0.5)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
# check the snapped point is OK
m = u.snapToMap(QPoint(45, 50))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPointXY(0.5, 0.5))
self.pointsLayer.setDependencies([])
# test chained layer dependencies A -> B -> C
cfg.setIndividualLayerSettings(self.pointsLayer2,
QgsSnappingConfig.IndividualLayerSettings(True,
QgsSnappingConfig.Vertex, 20, QgsTolerance.Pixels))
u.setConfig(cfg)
self.pointsLayer.setDependencies([QgsMapLayerDependency(self.linesLayer.id())])
self.pointsLayer2.setDependencies([QgsMapLayerDependency(self.pointsLayer.id())])
# add another line
f = QgsFeature(self.linesLayer.fields())
f.setId(3)
geom = QgsGeometry.fromWkt("LINESTRING(0 0.2,0.5 0.8)")
f.setGeometry(geom)
self.linesLayer.startEditing()
self.linesLayer.addFeatures([f])
self.linesLayer.commitChanges()
# check the second snapped point is OK
m = u.snapToMap(QPoint(75, 100 - 80))
self.assertTrue(m.isValid())
self.assertTrue(m.hasVertex())
self.assertEqual(m.point(), QgsPointXY(0.7, 0.8))
self.pointsLayer.setDependencies([])
self.pointsLayer2.setDependencies([])