def addFeatureCache(self, newPt):
featureCacheLen = len(self.featureCache)
layer = self.entity.layer
f = self.entity.getFeature()
transformedPt = self.mapToLayerCoordinates(layer, newPt)
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(transformedPt, self.subGeom)
if self.offSet < 0:
afterVertex = dummy[2]
pt = qad_utils.getPerpendicularPointOnInfinityLine(self.subGeom.vertexAt(afterVertex - 1), \
self.subGeom.vertexAt(afterVertex), \
transformedPt)
offSetDistance = qad_utils.getDistance(transformedPt, pt)
else:
offSetDistance = qad_utils.distMapToLayerCoordinates(self.offSet, \
self.plugIn.canvas,\
layer)
if self.multi == True:
if dummy[3] < 0: # alla sinistra
offSetDistance = offSetDistance + self.lastOffSetOnLeftSide
self.lastOffSetOnLeftSide = offSetDistance
self.getPointMapTool().lastOffSetOnLeftSide = self.lastOffSetOnLeftSide
else: # alla destra
offSetDistance = offSetDistance + self.lastOffSetOnRightSide
self.lastOffSetOnRightSide = offSetDistance
self.getPointMapTool().lastOffSetOnRightSide = self.lastOffSetOnRightSide
tolerance2ApproxCurve = qad_utils.distMapToLayerCoordinates(QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE")), \
self.plugIn.canvas,\
layer)
epsg = layer.crs().authid()
lines = qad_utils.offSetPolyline(self.subGeom.asPolyline(), epsg, \
offSetDistance, \
"left" if dummy[3] < 0 else "right", \
self.gapType, \
tolerance2ApproxCurve)
added = False
for line in lines:
if layer.geometryType() == QGis.Polygon:
if line[0] == line[-1]: # se é una linea chiusa
offsetGeom = QgsGeometry.fromPolygon([line])
else:
offsetGeom = QgsGeometry.fromPolyline(line)
else:
offsetGeom = QgsGeometry.fromPolyline(line)
if offsetGeom.type() == QGis.Line or offsetGeom.type() == QGis.Polygon:
offsetFeature = QgsFeature(f)
offsetFeature.setGeometry(offsetGeom)
self.featureCache.append([layer, offsetFeature])
self.addFeatureToRubberBand(layer, offsetFeature)
added = True
if added:
self.undoFeatureCacheIndexes.append(featureCacheLen)
def addFeatureCache(self, newPt):
featureCacheLen = len(self.featureCache)
layer = self.entity.layer
f = self.entity.getFeature()
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(newPt, self.subGeom)
if self.offSet < 0:
afterVertex = dummy[2]
pt = qad_utils.getPerpendicularPointOnInfinityLine(self.subGeom.vertexAt(afterVertex - 1), \
self.subGeom.vertexAt(afterVertex), \
newPt)
offSetDistance = qad_utils.getDistance(newPt, pt)
else:
offSetDistance = self.offSet
if self.multi == True:
if dummy[3] < 0: # alla sinistra
offSetDistance = offSetDistance + self.lastOffSetOnLeftSide
self.lastOffSetOnLeftSide = offSetDistance
self.getPointMapTool().lastOffSetOnLeftSide = self.lastOffSetOnLeftSide
else: # alla destra
offSetDistance = offSetDistance + self.lastOffSetOnRightSide
self.lastOffSetOnRightSide = offSetDistance
self.getPointMapTool().lastOffSetOnRightSide = self.lastOffSetOnRightSide
tolerance2ApproxCurve = QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE"))
# uso il crs del canvas per lavorare con coordinate piane xy
epsg = self.plugIn.canvas.mapSettings().destinationCrs().authid()
lines = qad_utils.offSetPolyline(self.subGeom.asPolyline(), epsg, \
offSetDistance, \
"left" if dummy[3] < 0 else "right", \
self.gapType, \
tolerance2ApproxCurve)
added = False
for line in lines:
if layer.geometryType() == QGis.Polygon:
if line[0] == line[-1]: # se é una linea chiusa
offsetGeom = QgsGeometry.fromPolygon([line])
else:
offsetGeom = QgsGeometry.fromPolyline(line)
else:
offsetGeom = QgsGeometry.fromPolyline(line)
if offsetGeom.type() == QGis.Line or offsetGeom.type() == QGis.Polygon:
offsetFeature = QgsFeature(f)
# trasformo la geometria nel crs del layer
offsetFeature.setGeometry(self.mapToLayerCoordinates(layer, offsetGeom))
self.featureCache.append([layer, offsetFeature])
self.addFeatureToRubberBand(layer, offsetFeature)
added = True
if added:
self.undoFeatureCacheIndexes.append(featureCacheLen)
def addOffSetGeometries(self, newPt):
self.__rubberBand.reset()
transformedPt = self.plugIn.canvas.mapRenderer().mapToLayerCoordinates(self.layer, newPt)
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(transformedPt, self.subGeom)
if self.offSet < 0:
afterVertex = dummy[2]
pt = qad_utils.getPerpendicularPointOnInfinityLine(self.subGeom.vertexAt(afterVertex - 1), \
self.subGeom.vertexAt(afterVertex), \
transformedPt)
offSetDistance = qad_utils.getDistance(transformedPt, pt)
else:
offSetDistance = qad_utils.distMapToLayerCoordinates(self.offSet, \
self.plugIn.canvas,\
self.layer)
if dummy[3] < 0: # alla sinistra
offSetDistance = offSetDistance + self.lastOffSetOnLeftSide
else: # alla destra
offSetDistance = offSetDistance + self.lastOffSetOnRightSide
tolerance2ApproxCurve = qad_utils.distMapToLayerCoordinates(QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE")), \
self.plugIn.canvas,\
self.layer)
epsg = self.layer.crs().authid()
lines = qad_utils.offSetPolyline(self.subGeom.asPolyline(), epsg, \
offSetDistance, \
"left" if dummy[3] < 0 else "right", \
self.gapType, \
tolerance2ApproxCurve)
for line in lines:
if self.layer.geometryType() == QGis.Polygon:
if line[0] == line[-1]: # se é una linea chiusa
offsetGeom = QgsGeometry.fromPolygon([line])
else:
offsetGeom = QgsGeometry.fromPolyline(line)
else:
offsetGeom = QgsGeometry.fromPolyline(line)
self.__rubberBand.addGeometry(offsetGeom, self.layer)
def addOffSetGeometries(self, newPt):
self.__highlight.reset()
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(newPt, self.subGeom)
if self.offSet < 0:
afterVertex = dummy[2]
pt = qad_utils.getPerpendicularPointOnInfinityLine(self.subGeom.vertexAt(afterVertex - 1), \
self.subGeom.vertexAt(afterVertex), \
newPt)
offSetDistance = qad_utils.getDistance(newPt, pt)
else:
offSetDistance = self.offSet
if dummy[3] < 0: # alla sinistra
offSetDistance = offSetDistance + self.lastOffSetOnLeftSide
else: # alla destra
offSetDistance = offSetDistance + self.lastOffSetOnRightSide
tolerance2ApproxCurve = QadVariables.get(
QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE"))
# uso il crs del canvas per lavorare con coordinate piane xy
epsg = self.canvas.mapRenderer().destinationCrs().authid()
lines = qad_utils.offSetPolyline(self.subGeom.asPolyline(), epsg, \
offSetDistance, \
"left" if dummy[3] < 0 else "right", \
self.gapType, \
tolerance2ApproxCurve)
for line in lines:
if self.layer.geometryType() == QGis.Polygon:
if line[0] == line[-1]: # se é una linea chiusa
offsetGeom = QgsGeometry.fromPolygon([line])
else:
offsetGeom = QgsGeometry.fromPolyline(line)
else:
offsetGeom = QgsGeometry.fromPolyline(line)
self.__highlight.addGeometry(
self.mapToLayerCoordinates(self.layer, offsetGeom), self.layer)
def addOffSetGeometries(self, newPt):
self.__highlight.reset()
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(newPt, self.subGeom)
if self.offSet < 0:
afterVertex = dummy[2]
pt = qad_utils.getPerpendicularPointOnInfinityLine(self.subGeom.vertexAt(afterVertex - 1), \
self.subGeom.vertexAt(afterVertex), \
newPt)
offSetDistance = qad_utils.getDistance(newPt, pt)
else:
offSetDistance = self.offSet
if dummy[3] < 0: # alla sinistra
offSetDistance = offSetDistance + self.lastOffSetOnLeftSide
else: # alla destra
offSetDistance = offSetDistance + self.lastOffSetOnRightSide
tolerance2ApproxCurve = QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE"))
# uso il crs del canvas per lavorare con coordinate piane xy
epsg = self.canvas.mapSettings().destinationCrs().authid()
lines = qad_utils.offSetPolyline(self.subGeom.asPolyline(), epsg, \
offSetDistance, \
"left" if dummy[3] < 0 else "right", \
self.gapType, \
tolerance2ApproxCurve)
for line in lines:
if self.layer.geometryType() == QGis.Polygon:
if line[0] == line[-1]: # se é una linea chiusa
offsetGeom = QgsGeometry.fromPolygon([line])
else:
offsetGeom = QgsGeometry.fromPolyline(line)
else:
offsetGeom = QgsGeometry.fromPolyline(line)
self.__highlight.addGeometry(self.mapToLayerCoordinates(self.layer, offsetGeom), self.layer)
