def canvasMoveEvent(self, event: QgsMapMouseEvent):
if self.is_tracking and not self.capturing or self.editvertex is None:
return
point = QgsGeometry(point_from_event(event, self.snapping)).asPoint()
if not self.editmode:
self.pointband.movePoint(point)
if self.capturing:
self.band.movePoint(point)
if self.editmode and self.editvertex is not None:
found, vertexid = self.geom.vertexIdFromVertexNr(self.editvertex)
self.geom.get().moveVertex(vertexid, QgsPoint(point))
self.feature.setGeometry(self.geom)
self.currentVectorLayer().updateFeature(self.feature)
self.pointband.setToGeometry(self.toMultiPoint(self.geom),
self.currentVectorLayer())
self.band.setToGeometry(self.geom, self.currentVectorLayer())
def endcapture(self):
# if not self.editmode:
# self.band.removeLastPoint()
self.update_valid_state()
errors = self.has_errors()
if errors and self.config.get("geometry_validation", True):
self.error.emit("Invalid geometry. <br>"
"Please recapture. Last capture shown in grey <br>"
"<h2>Errors</h2> {0}".format("<br>".join(
error.what() for error in errors)))
self.endinvalidcapture(errors)
return
self.capturing = False
self.set_tracking(False)
self.captureaction.setChecked(True)
self.undoaction.setEnabled(False)
self.endcaptureaction.setEnabled(False)
self.clearErrors()
self.geometryComplete.emit(QgsGeometry(self.get_geometry()))
def canvasPressEvent(self, event):
geom = self.band.asGeometry()
if not geom:
return
point = QgsGeometry(point_from_event(event, self.snapping)).asPoint()
if self.editmode:
layer = self.currentVectorLayer()
event.snapToGrid(layer.geometryOptions().geometryPrecision(),
layer.crs())
tol = QgsTolerance.vertexSearchRadius(self.canvas.mapSettings())
loc = self.canvas.snappingUtils().locatorForLayer(layer)
matches = loc.verticesInRect(point, tol)
if matches:
for match in matches:
if match.featureId() != self.feature.id():
continue
self.editpart = 0
self.editvertex = match.vertexIndex()
break
else:
self.editvertex = None
self.editpart = 0
def toMultiPoint(self, geom):
points = QgsMultiPoint()
for count, v in enumerate(geom.vertices()):
points.addGeometry(v.clone())
newgeom = QgsGeometry(points)
return newgeom
