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 canvasMoveEvent(self, event): QadGetPoint.canvasMoveEvent(self, event) self.__rubberBand.reset() res = False # si richiede la selezione dell'oggetto da allungare if self.mode == Qad_lengthen_maptool_ModeEnum.ASK_FOR_OBJ_TO_LENGTHEN: if self.tmpEntity.isInitialized(): if self.setInfo(self.tmpEntity, self.tmpPoint) == False: return if self.OpMode == "DElta": if self.OpType == "length": res = self.tmpLinearObjectList.lengthen_delta(self.move_startPt, self.value) elif self.OpType == "Angle": res = self.tmpLinearObjectList.lengthen_deltaAngle(self.move_startPt, self.value) elif self.OpMode == "Percent": value = self.tmpLinearObjectList.length() * self.value / 100 value = value - self.tmpLinearObjectList.length() res = self.tmpLinearObjectList.lengthen_delta(self.move_startPt, value) elif self.OpMode == "Total": if self.OpType == "length": value = self.value - self.tmpLinearObjectList.length() res = self.tmpLinearObjectList.lengthen_delta(self.move_startPt, value) elif self.OpType == "Angle": if self.tmpLinearObjectList.qty() == 1: linearObject = self.tmpLinearObjectList.getLinearObjectAt(0) if linearObject.isArc() == True: # se è un arco value = self.value - linearObject.getArc().totalAngle() res = self.tmpLinearObjectList.lengthen_deltaAngle(self.move_startPt, value) # si richiede un punto per la nuova estremità elif self.mode == Qad_lengthen_maptool_ModeEnum.ASK_FOR_DYNAMIC_POINT: if self.tmpLinearObjectList.qty() == 1: transformedPt = self.canvas.mapRenderer().mapToLayerCoordinates(self.layer, self.tmpPoint) linearObject = self.tmpLinearObjectList.getLinearObjectAt(0) if linearObject.isSegment(): newPt = qad_utils.getPerpendicularPointOnInfinityLine(linearObject.getStartPt(), linearObject.getEndPt(), transformedPt) else: # arco newPt = qad_utils.getPolarPointByPtAngle(linearObject.getArc().center, \ qad_utils.getAngleBy2Pts(linearObject.getArc().center, transformedPt), \ linearObject.getArc().radius) if self.move_startPt: linearObject.setStartPt(newPt) else: linearObject.setEndPt(newPt) res = True if res == False: # allungamento impossibile return pts = self.tmpLinearObjectList.asPolyline() geom = QgsGeometry.fromPolyline(pts) self.__rubberBand.addGeometry(geom, self.layer)
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)
def stretchQgsLineStringGeometry(geom, containerGeom, offSetX, offSetY, tolerance2ApproxCurve): """ Stira i punti di una linestring che sono contenuti in containerGeom point = punto da tirare containerGeom = può essere una QgsGeometry rappresentante un poligono contenente i punti di geom da stirare oppure una lista dei punti da stirare offSetX = spostamento X offSetY = spostamento Y """ obj = qad_utils.whatGeomIs(0, geom) if (type(obj) != list and type(obj) != tuple): objType = obj.whatIs() if objType == "CIRCLE": # se é cerchio if isPtContainedForStretch(obj.center, containerGeom): # se il punto è contenuto in containerGeom obj.center.setX(obj.center.x() + offSetX) obj.center.setY(obj.center.y() + offSetY) return QgsGeometry.fromPolyline(obj.asPolyline(tolerance2ApproxCurve)) stretchedGeom = QgsGeometry(geom) snapper = QadSnapper() points = snapper.getEndPoints(stretchedGeom) del snapper linearObjectListToStretch = qad_utils.QadLinearObjectList() linearObjectListToStretch.fromPolyline(geom.asPolyline()) for point in points: if isPtContainedForStretch(point, containerGeom): # se il punto è contenuto in containerGeom atPart = linearObjectListToStretch.containsPt(point) while atPart >= 0: linearObject = linearObjectListToStretch.getLinearObjectAt(atPart) pt = linearObject.getStartPt() if qad_utils.ptNear(pt, point): # cambio punto iniziale pt.setX(pt.x() + offSetX) pt.setY(pt.y() + offSetY) if linearObject.isSegment(): linearObject.setStartPt(pt) else: oldArc = linearObject.getArc() middlePt = oldArc.getMiddlePt() distFromMiddleChord = qad_utils.getDistance(middlePt, qad_utils.getPerpendicularPointOnInfinityLine(oldArc.getStartPt(), oldArc.getEndPt(), middlePt)) newArc = QadArc() if linearObject.isInverseArc(): middlePt = qad_utils.getMiddlePoint(pt, oldArc.getStartPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getStartPt()) + math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(oldArc.getStartPt(), middlePt, pt) == False: return None else: middlePt = qad_utils.getMiddlePoint(pt, oldArc.getEndPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getEndPt()) - math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(pt, middlePt, oldArc.getEndPt()) == False: return None linearObject.setArc(newArc, linearObject.isInverseArc()) else: pt = linearObject.getEndPt() if qad_utils.ptNear(pt, point): # cambio punto finale pt.setX(pt.x() + offSetX) pt.setY(pt.y() + offSetY) if linearObject.isSegment(): linearObject.setEndPt(pt) else: oldArc = linearObject.getArc() middlePt = oldArc.getMiddlePt() distFromMiddleChord = qad_utils.getDistance(middlePt, qad_utils.getPerpendicularPointOnInfinityLine(oldArc.getStartPt(), oldArc.getEndPt(), middlePt)) newArc = QadArc() if linearObject.isInverseArc(): middlePt = qad_utils.getMiddlePoint(pt, oldArc.getEndPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getEndPt()) - math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(pt, middlePt, oldArc.getEndPt()) == False: return None else: middlePt = qad_utils.getMiddlePoint(pt, oldArc.getStartPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getStartPt()) + math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(oldArc.getStartPt(), middlePt, pt) == False: return None linearObject.setArc(newArc, linearObject.isInverseArc()) atPart = linearObjectListToStretch.containsPt(point, atPart + 1) pts = linearObjectListToStretch.asPolyline(tolerance2ApproxCurve) stretchedGeom = QgsGeometry.fromPolyline(pts) return stretchedGeom
def canvasMoveEvent(self, event): QadGetPoint.canvasMoveEvent(self, event) self.__rubberBand.reset() res = False # si richiede la selezione dell'oggetto da allungare if self.mode == Qad_lengthen_maptool_ModeEnum.ASK_FOR_OBJ_TO_LENGTHEN: if self.tmpEntity.isInitialized(): if self.setInfo(self.tmpEntity, self.tmpPoint) == False: return if self.OpMode == "DElta": newTmpLinearObjectList = qad_utils.QadLinearObjectList(self.tmpLinearObjectList) if self.OpType == "length": res = newTmpLinearObjectList.lengthen_delta(self.move_startPt, self.value) elif self.OpType == "Angle": res = newTmpLinearObjectList.lengthen_deltaAngle(self.move_startPt, self.value) elif self.OpMode == "Percent": newTmpLinearObjectList = qad_utils.QadLinearObjectList(self.tmpLinearObjectList) value = newTmpLinearObjectList.length() * self.value / 100 value = value - newTmpLinearObjectList.length() res = newTmpLinearObjectList.lengthen_delta(self.move_startPt, value) elif self.OpMode == "Total": newTmpLinearObjectList = qad_utils.QadLinearObjectList(self.tmpLinearObjectList) if self.OpType == "length": value = self.value - self.tmpLinearObjectList.length() res = newTmpLinearObjectList.lengthen_delta(self.move_startPt, value) elif self.OpType == "Angle": if newTmpLinearObjectList.qty() == 1: linearObject = newTmpLinearObjectList.getLinearObjectAt(0) if linearObject.isArc() == True: # se è un arco value = self.value - linearObject.getArc().totalAngle() res = newTmpLinearObjectList.lengthen_deltaAngle(self.move_startPt, value) # si richiede un punto per la nuova estremità elif self.mode == Qad_lengthen_maptool_ModeEnum.ASK_FOR_DYNAMIC_POINT: newTmpLinearObjectList = qad_utils.QadLinearObjectList(self.tmpLinearObjectList) transformedPt = self.canvas.mapSettings().mapToLayerCoordinates(self.layer, self.tmpPoint) if self.move_startPt: linearObject = newTmpLinearObjectList.getLinearObjectAt(0) else: linearObject = newTmpLinearObjectList.getLinearObjectAt(-1) if linearObject.isSegment(): newPt = qad_utils.getPerpendicularPointOnInfinityLine(linearObject.getStartPt(), linearObject.getEndPt(), transformedPt) else: # arco newPt = qad_utils.getPolarPointByPtAngle(linearObject.getArc().center, \ qad_utils.getAngleBy2Pts(linearObject.getArc().center, transformedPt), \ linearObject.getArc().radius) if newTmpLinearObjectList.qty() > 1 and linearObject.isSegment(): ang = linearObject.getTanDirectionOnStartPt() if self.move_startPt: linearObject.setStartPt(newPt) else: linearObject.setEndPt(newPt) if newTmpLinearObjectList.qty() > 1 and linearObject.isSegment() and \ qad_utils.TanDirectionNear(ang, linearObject.getTanDirectionOnStartPt()) == False: res = False else: res = True if res == False: # allungamento impossibile return pts = newTmpLinearObjectList.asPolyline() geom = QgsGeometry.fromPolyline(pts) self.__rubberBand.addGeometry(geom, self.layer)
def lengthen(self, point): layer = self.entity.layer f = self.entity.getFeature() if f is None: # non c'è più la feature return False # trasformo la geometria nel crs del canvas per lavorare con coordinate piane xy geom = self.layerToMapCoordinates(layer, self.entity.getGeometry()) # ritorna una tupla (<The squared cartesian distance>, # <minDistPoint> # <afterVertex> # <leftOf>) res = False newLinearObjectList = qad_utils.QadLinearObjectList(self.linearObjectList) if self.move_startPt: linearObject = newLinearObjectList.getLinearObjectAt(0) else: linearObject = newLinearObjectList.getLinearObjectAt(-1) if linearObject.isSegment(): newPt = qad_utils.getPerpendicularPointOnInfinityLine(linearObject.getStartPt(), linearObject.getEndPt(), point) else: # arco newPt = qad_utils.getPolarPointByPtAngle(linearObject.getArc().center, \ qad_utils.getAngleBy2Pts(linearObject.getArc().center, point), \ linearObject.getArc().radius) if newLinearObjectList.qty() > 1 and linearObject.isSegment(): ang = linearObject.getTanDirectionOnStartPt() if self.move_startPt: linearObject.setStartPt(newPt) else: linearObject.setEndPt(newPt) if newLinearObjectList.qty() > 1 and linearObject.isSegment() and \ qad_utils.TanDirectionNear(ang, linearObject.getTanDirectionOnStartPt()) == False: res = False else: res = True if res == False: # allungamento impossibile return False pts = newLinearObjectList.asPolyline() updSubGeom = QgsGeometry.fromPolyline(pts) updGeom = qad_utils.setSubGeom(geom, updSubGeom, self.atSubGeom) if updGeom is None: return False # trasformo la geometria nel crs del layer f.setGeometry(self.mapToLayerCoordinates(layer, updGeom)) self.plugIn.beginEditCommand("Feature edited", layer) if self.copyEntities == False: # plugIn, layer, feature, refresh, check_validity if qad_layer.updateFeatureToLayer(self.plugIn, layer, f, False, False) == False: self.plugIn.destroyEditCommand() return False else: # plugIn, layer, features, coordTransform, refresh, check_validity if qad_layer.addFeatureToLayer(self.plugIn, layer, f, None, False, False) == False: self.plugIn.destroyEditCommand() return False self.plugIn.endEditCommand() self.nOperationsToUndo = self.nOperationsToUndo + 1 return True
def lengthen(self, point): layer = self.entity.layer f = self.entity.getFeature() if f is None: # non c'è più la feature return False geom = self.entity.getGeometry() # ritorna una tupla (<The squared cartesian distance>, # <minDistPoint> # <afterVertex> # <leftOf>) res = False if self.OpMode == "DElta": newLinearObjectList = qad_utils.QadLinearObjectList(self.linearObjectList) if self.OpType == "length": res = newLinearObjectList.lengthen_delta(self.move_startPt, self.value) elif self.OpType == "Angle": res = newLinearObjectList.lengthen_deltaAngle(self.move_startPt, self.value) elif self.OpMode == "Percent": newLinearObjectList = qad_utils.QadLinearObjectList(self.linearObjectList) value = newLinearObjectList.length() * self.value / 100 value = value - newLinearObjectList.length() res = newLinearObjectList.lengthen_delta(self.move_startPt, value) elif self.OpMode == "Total": newLinearObjectList = qad_utils.QadLinearObjectList(self.linearObjectList) if self.OpType == "length": value = self.value - newLinearObjectList.length() res = newLinearObjectList.lengthen_delta(self.move_startPt, value) elif self.OpType == "Angle": if newLinearObjectList.qty() == 1: linearObject = newLinearObjectList.getLinearObjectAt(0) if linearObject.isArc() == True: # se è un arco value = self.value - linearObject.getArc().totalAngle() res = newLinearObjectList.lengthen_deltaAngle(self.move_startPt, value) elif self.OpMode == "DYnamic": newLinearObjectList = qad_utils.QadLinearObjectList(self.linearObjectList) transformedPt = self.mapToLayerCoordinates(layer, point) if self.move_startPt: linearObject = newLinearObjectList.getLinearObjectAt(0) else: linearObject = newLinearObjectList.getLinearObjectAt(-1) if linearObject.isSegment(): newPt = qad_utils.getPerpendicularPointOnInfinityLine(linearObject.getStartPt(), linearObject.getEndPt(), transformedPt) else: # arco newPt = qad_utils.getPolarPointByPtAngle(linearObject.getArc().center, \ qad_utils.getAngleBy2Pts(linearObject.getArc().center, transformedPt), \ linearObject.getArc().radius) if newLinearObjectList.qty() > 1 and linearObject.isSegment(): ang = linearObject.getTanDirectionOnStartPt() if self.move_startPt: linearObject.setStartPt(newPt) else: linearObject.setEndPt(newPt) if newLinearObjectList.qty() > 1 and linearObject.isSegment() and \ qad_utils.TanDirectionNear(ang, linearObject.getTanDirectionOnStartPt()) == False: res = False else: res = True if res == False: # allungamento impossibile return False pts = newLinearObjectList.asPolyline() updSubGeom = QgsGeometry.fromPolyline(pts) updGeom = qad_utils.setSubGeom(geom, updSubGeom, self.atSubGeom) if updGeom is None: return False f.setGeometry(updGeom) self.plugIn.beginEditCommand("Feature edited", layer) # plugIn, layer, feature, refresh, check_validity if qad_layer.updateFeatureToLayer(self.plugIn, layer, f, False, False) == False: self.plugIn.destroyEditCommand() return False self.plugIn.endEditCommand() self.nOperationsToUndo = self.nOperationsToUndo + 1 return True
def stretchQgsLineStringGeometry(geom, containerGeom, offSetX, offSetY, tolerance2ApproxCurve = None): """ Stira i punti di una linestring che sono contenuti in containerGeom point = punto da tirare containerGeom = può essere una QgsGeometry rappresentante un poligono contenente i punti di geom da stirare oppure una lista dei punti da stirare offSetX = spostamento X offSetY = spostamento Y """ if tolerance2ApproxCurve == None: tolerance = QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE")) else: tolerance = tolerance2ApproxCurve obj = qad_utils.whatGeomIs(0, geom) if (type(obj) != list and type(obj) != tuple): objType = obj.whatIs() if objType == "CIRCLE": # se é cerchio if isPtContainedForStretch(obj.center, containerGeom): # se il punto è contenuto in containerGeom obj.center.setX(obj.center.x() + offSetX) obj.center.setY(obj.center.y() + offSetY) return QgsGeometry.fromPolyline(obj.asPolyline(tolerance)) stretchedGeom = QgsGeometry(geom) snapper = QadSnapper() points = snapper.getEndPoints(stretchedGeom) del snapper linearObjectListToStretch = qad_utils.QadLinearObjectList() linearObjectListToStretch.fromPolyline(geom.asPolyline()) for point in points: if isPtContainedForStretch(point, containerGeom): # se il punto è contenuto in containerGeom atPart = linearObjectListToStretch.containsPt(point) while atPart >= 0: linearObject = linearObjectListToStretch.getLinearObjectAt(atPart) pt = linearObject.getStartPt() if qad_utils.ptNear(pt, point): # cambio punto iniziale pt.setX(pt.x() + offSetX) pt.setY(pt.y() + offSetY) if linearObject.isSegment(): linearObject.setStartPt(pt) else: oldArc = linearObject.getArc() middlePt = oldArc.getMiddlePt() distFromMiddleChord = qad_utils.getDistance(middlePt, qad_utils.getPerpendicularPointOnInfinityLine(oldArc.getStartPt(), oldArc.getEndPt(), middlePt)) newArc = QadArc() if linearObject.isInverseArc(): middlePt = qad_utils.getMiddlePoint(pt, oldArc.getStartPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getStartPt()) + math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(oldArc.getStartPt(), middlePt, pt) == False: return None else: middlePt = qad_utils.getMiddlePoint(pt, oldArc.getEndPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getEndPt()) - math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(pt, middlePt, oldArc.getEndPt()) == False: return None linearObject.setArc(newArc, linearObject.isInverseArc()) else: pt = linearObject.getEndPt() if qad_utils.ptNear(pt, point): # cambio punto finale pt.setX(pt.x() + offSetX) pt.setY(pt.y() + offSetY) if linearObject.isSegment(): linearObject.setEndPt(pt) else: oldArc = linearObject.getArc() middlePt = oldArc.getMiddlePt() distFromMiddleChord = qad_utils.getDistance(middlePt, qad_utils.getPerpendicularPointOnInfinityLine(oldArc.getStartPt(), oldArc.getEndPt(), middlePt)) newArc = QadArc() if linearObject.isInverseArc(): middlePt = qad_utils.getMiddlePoint(pt, oldArc.getEndPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getEndPt()) - math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(pt, middlePt, oldArc.getEndPt()) == False: return None else: middlePt = qad_utils.getMiddlePoint(pt, oldArc.getStartPt()) middlePt = qad_utils.getPolarPointByPtAngle(middlePt, \ qad_utils.getAngleBy2Pts(pt, oldArc.getStartPt()) + math.pi / 2, \ distFromMiddleChord) if newArc.fromStartSecondEndPts(oldArc.getStartPt(), middlePt, pt) == False: return None linearObject.setArc(newArc, linearObject.isInverseArc()) atPart = linearObjectListToStretch.containsPt(point, atPart + 1) pts = linearObjectListToStretch.asPolyline(tolerance) stretchedGeom = QgsGeometry.fromPolyline(pts) return stretchedGeom