def getFeature(self, featureId):
if self.isInitialized() == False:
return None
return qad_utils.getFeatureById(self.layer, featureId)
def trimFeatures(self, geom, toExtend):
# geom è in map coordinates
tolerance2ApproxCurve = QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE"))
LineTempLayer = None
self.plugIn.beginEditCommand("Feature extended" if toExtend else "Feature trimmed", \
self.entitySet.getLayerList())
for layerEntitySet in self.entitySet.layerEntitySetList:
layer = layerEntitySet.layer
for featureId in layerEntitySet.featureIds:
f = qad_utils.getFeatureById(layer, featureId)
if f is None:
continue
# trasformo la geometria nel crs del canvas per lavorare con coordinate piane xy
f_geom = self.layerToMapCoordinates(layer, f.geometry())
if geom.type() == QGis.Point:
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(geom.asPoint(), f_geom)
if dummy[1] is not None:
intPts = [dummy[1]]
else:
intPts = qad_utils.getIntersectionPoints(geom, f_geom)
for intPt in intPts:
if toExtend:
newGeom = qad_utils.extendQgsGeometry(self.plugIn.canvas.mapRenderer().destinationCrs(), f_geom, intPt, \
self.limitEntitySet, self.edgeMode, \
tolerance2ApproxCurve)
if newGeom is not None:
# aggiorno la feature con la geometria estesa
extendedFeature = QgsFeature(f)
# trasformo la geometria nel crs del layer
extendedFeature.setGeometry(self.mapToLayerCoordinates(layer, newGeom))
# plugIn, layer, feature, refresh, check_validity
if qad_layer.updateFeatureToLayer(self.plugIn, layer, extendedFeature, False, False) == False:
self.plugIn.destroyEditCommand()
return
else: # trim
result = qad_utils.trimQgsGeometry(self.plugIn.canvas.mapRenderer().destinationCrs(), f_geom, intPt, \
self.limitEntitySet, self.edgeMode, \
tolerance2ApproxCurve)
if result is not None:
line1 = result[0]
line2 = result[1]
atSubGeom = result[2]
if layer.geometryType() == QGis.Line:
updGeom = qad_utils.setSubGeom(f_geom, line1, atSubGeom)
if updGeom is None:
self.plugIn.destroyEditCommand()
return
trimmedFeature1 = QgsFeature(f)
# trasformo la geometria nel crs del layer
trimmedFeature1.setGeometry(self.mapToLayerCoordinates(layer, updGeom))
# plugIn, layer, feature, refresh, check_validity
if qad_layer.updateFeatureToLayer(self.plugIn, layer, trimmedFeature1, False, False) == False:
self.plugIn.destroyEditCommand()
return
if line2 is not None:
trimmedFeature2 = QgsFeature(f)
# trasformo la geometria nel crs del layer
trimmedFeature2.setGeometry(self.mapToLayerCoordinates(layer, line2))
# plugIn, layer, feature, coordTransform, refresh, check_validity
if qad_layer.addFeatureToLayer(self.plugIn, layer, trimmedFeature2, None, False, False) == False:
self.plugIn.destroyEditCommand()
return
else:
# aggiungo le linee nei layer temporanei di QAD
if LineTempLayer is None:
LineTempLayer = qad_layer.createQADTempLayer(self.plugIn, QGis.Line)
self.plugIn.addLayerToLastEditCommand("Feature trimmed", LineTempLayer)
lineGeoms = [line1]
if line2 is not None:
lineGeoms.append(line2)
# trasformo la geometria in quella dei layer temporanei
# plugIn, pointGeoms, lineGeoms, polygonGeoms, coord, refresh
if qad_layer.addGeometriesToQADTempLayers(self.plugIn, None, lineGeoms, None, None, False) == False:
self.plugIn.destroyEditCommand()
return
updGeom = qad_utils.delSubGeom(f_geom, atSubGeom)
if updGeom is None or updGeom.isGeosEmpty(): # da cancellare
# plugIn, layer, feature id, refresh
if qad_layer.deleteFeatureToLayer(self.plugIn, layer, f.id(), False) == False:
self.plugIn.destroyEditCommand()
return
else:
trimmedFeature1 = QgsFeature(f)
# trasformo la geometria nel crs del layer
trimmedFeature1.setGeometry(self.mapToLayerCoordinates(layer, updGeom))
# plugIn, layer, feature, refresh, check_validity
if qad_layer.updateFeatureToLayer(self.plugIn, layer, trimmedFeature1, False, False) == False:
self.plugIn.destroyEditCommand()
return
self.plugIn.endEditCommand()
self.nOperationsToUndo = self.nOperationsToUndo + 1
def getFeature(self, featureId):
if self.isInitialized() == False:
return None
return qad_utils.getFeatureById(self.layer, featureId)