def setInfo(self, entity, point):
# setta: self.layer, self.tmpLinearObjectList e self.move_startPt
if self.tmpLinearObjectList is not None:
del self.tmpLinearObjectList
self.tmpLinearObjectList = None
if entity.isInitialized() == False:
return False
self.layer = entity.layer
transformedPt = self.canvas.mapSettings().mapToLayerCoordinates(self.layer, point)
geom = entity.getGeometry()
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(transformedPt, geom)
if dummy[2] is None:
return False
# ritorna la sotto-geometria al vertice <atVertex> e la sua posizione nella geometria (0-based)
subGeom, atSubGeom = qad_utils.getSubGeomAtVertex(geom, dummy[2])
self.tmpLinearObjectList = qad_utils.QadLinearObjectList()
self.tmpLinearObjectList.fromPolyline(subGeom.asPolyline())
if qad_utils.getDistance(self.tmpLinearObjectList.getStartPt(), transformedPt) <= \
qad_utils.getDistance(self.tmpLinearObjectList.getEndPt(), transformedPt):
# si allunga/accorcia dal punto iniziale
self.move_startPt = True
else:
# si allunga dal punto finale
self.move_startPt = False
return True
def canvasMoveEvent(self, event):
QadGetPoint.canvasMoveEvent(self, event)
self.__highlight.reset()
tmpLinearObjectList = None
# si richiede un nuovo vertice da inserire
if self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_NEW_VERTEX:
if self.basePt is not None:
offSetX = self.tmpPoint.x() - self.basePt.x()
offSetY = self.tmpPoint.y() - self.basePt.y()
newPt = QgsPoint(self.vertexPt.x() + offSetX,
self.vertexPt.y() + offSetY)
else:
newPt = QgsPoint(self.tmpPoint)
tmpLinearObjectList = qad_utils.QadLinearObjectList()
tmpLinearObjectList.set(self.linearObjectList)
if self.after: # dopo
if self.vertexAt == tmpLinearObjectList.qty(
) and tmpLinearObjectList.isClosed():
tmpLinearObjectList.insertPoint(0, newPt)
else:
tmpLinearObjectList.insertPoint(self.vertexAt, newPt)
else: # prima
if self.vertexAt == 0 and tmpLinearObjectList.isClosed():
tmpLinearObjectList.insertPoint(
tmpLinearObjectList.qty() - 1, newPt)
else:
tmpLinearObjectList.insertPoint(self.vertexAt - 1, newPt)
elif self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_MOVE_VERTEX:
newPt = QgsPoint(self.tmpPoint)
tmpLinearObjectList = qad_utils.QadLinearObjectList()
tmpLinearObjectList.set(self.linearObjectList)
tmpLinearObjectList.movePoint(self.vertexAt, newPt)
if tmpLinearObjectList is not None:
pts = tmpLinearObjectList.asPolyline(self.tolerance2ApproxCurve)
if self.layer.geometryType() == QGis.Polygon:
geom = QgsGeometry.fromPolygon([pts])
else:
geom = QgsGeometry.fromPolyline(pts)
# trasformo la geometria nel crs del layer
self.__highlight.addGeometry(
self.mapToLayerCoordinates(self.layer, geom), self.layer)
def __init__(self, plugIn):
QadCommandClass.__init__(self, plugIn)
self.GetDistClass = None
self.entity1 = QadEntity()
self.atSubGeom1 = None
self.linearObjectList1 = qad_utils.QadLinearObjectList()
self.partAt1 = 0
self.pointAt1 = None
self.entity2 = QadEntity()
self.atSubGeom2 = None
self.linearObjectList2 = qad_utils.QadLinearObjectList()
self.partAt2 = 0
self.pointAt2 = None
self.filletMode = plugIn.filletMode # modalità di raccordo; 1=Taglia-estendi, 2=Non taglia-estendi
self.radius = QadVariables.get(QadMsg.translate("Environment variables", "FILLETRAD"))
self.multi = False
self.nOperationsToUndo = 0
def setSelectedEntityGripPoints(self, entitySetGripPoints):
# lista delle entityGripPoint con dei grip point selezionati
# setta la prima entità con un grip selezionato
self.entity = None
for entityGripPoints in entitySetGripPoints.entityGripPoints:
for gripPoint in entityGripPoints.gripPoints:
# grip point selezionato
if gripPoint.getStatus() == qad_grip.QadGripStatusEnum.SELECTED:
# verifico se l'entità appartiene ad uno stile di quotatura
if entityGripPoints.entity.isDimensionComponent():
return False
if entityGripPoints.entity.getEntityType() != QadEntityGeomTypeEnum.ARC and \
entityGripPoints.entity.getEntityType() != QadEntityGeomTypeEnum.LINESTRING:
return False
# setta: self.entity, self.linearObjectList, self.atSubGeom e self.move_startPt
self.entity = entityGripPoints.entity
if self.linearObjectList is not None:
del self.linearObjectList
self.linearObjectList = None
# trasformo la geometria nel crs del canvas per lavorare con coordinate piane xy
geom = self.layerToMapCoordinates(self.entity.layer, self.entity.getGeometry())
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
res = False
dummy = qad_utils.closestSegmentWithContext(gripPoint.getPoint(), geom)
if dummy[2] is None:
return False
# ritorna la sotto-geometria al vertice <atVertex> e la sua posizione nella geometria (0-based)
subGeom, self.atSubGeom = qad_utils.getSubGeomAtVertex(geom, dummy[2])
self.linearObjectList = qad_utils.QadLinearObjectList()
self.linearObjectList.fromPolyline(subGeom.asPolyline())
if qad_utils.getDistance(self.linearObjectList.getStartPt(), gripPoint.getPoint()) <= \
qad_utils.getDistance(self.linearObjectList.getEndPt(), gripPoint.getPoint()):
# si allunga dal punto iniziale
self.move_startPt = True
else:
# si allunga dal punto finale
self.move_startPt = False
# imposto il map tool
if self.getPointMapTool().setInfo(self.entity, gripPoint.getPoint()) == False:
return False
return True
return False
def __init__(self, plugIn):
QadGetPoint.__init__(self, plugIn)
self.firstPt = None
self.mode = None
self.layer = None
self.linearObjectList = qad_utils.QadLinearObjectList()
self.linearObject = None
self.startPt = None
self.endPt = None
self.tolerance2ApproxCurve = None
self.__highlight = QadHighlight(self.canvas)
def gripStretchQgsLinearObjectList(linearObjectList, ptListToStretch, offSetX,
offSetY, tolerance2ApproxCurve):
"""
Stira i punti di grip di una linestring che sono contenuti in ptListToStretch
linearObjectListToStretch = geometria da stirare
ptListToStretch = lista dei punti da stirare
offSetX = spostamento X
offSetY = spostamento Y
"""
linearObjectListToStretch = qad_utils.QadLinearObjectList(linearObjectList)
atPart = 0
while atPart < linearObjectListToStretch.qty():
linearObject = linearObjectListToStretch.getLinearObjectAt(atPart)
if linearObject.isSegment():
pt = linearObject.getStartPt()
if isPtContainedForStretch(
pt, ptListToStretch
): # se il punto è contenuto in ptListToStretch
# cambio punto iniziale
pt.setX(pt.x() + offSetX)
pt.setY(pt.y() + offSetY)
linearObject.setStartPt(pt)
pt = linearObject.getEndPt()
if isPtContainedForStretch(
pt, ptListToStretch
): # se il punto è contenuto in ptListToStretch
# cambio punto finale
pt.setX(pt.x() + offSetX)
pt.setY(pt.y() + offSetY)
linearObject.setEndPt(pt)
else: # se è arco
newArc, newInverseFlag = gripStretchArc(
linearObject.getArc(), ptListToStretch, offSetX, offSetY,
tolerance2ApproxCurve, linearObject.isInverseArc())
if newArc is None:
return None
linearObject.setArc(newArc, newInverseFlag)
atPart = atPart + 1
pt = linearObjectListToStretch.getCentroid(
tolerance2ApproxCurve) # verifico se polilinea ha un centroide
if pt is not None:
if isPtContainedForStretch(
pt,
ptListToStretch): # se il punto è contenuto in ptListToStretch
linearObjectListToStretch.move(offSetX, offSetY)
return linearObjectListToStretch
def __init__(self, plugIn):
QadGetPoint.__init__(self, plugIn)
self.filletMode = 1 # modalità di raccordo; 1=Taglia-estendi, 2=Non taglia-estendi
self.radius = 0.0
self.layer = None
self.linearObjectList = qad_utils.QadLinearObjectList()
self.partAt1 = 0
self.vertexAt1 = 0
self.tolerance2ApproxCurve = None
self.__rubberBand = QadRubberBand(self.canvas)
def __init__(self, plugIn):
QadGetPoint.__init__(self, plugIn)
self.firstPt = None
self.mode = None
self.layer = None
self.linearObjectList = qad_utils.QadLinearObjectList()
self.tolerance2ApproxCurve = None
self.vertexAt = 0
self.vertexPt = None
self.after = True
self.basePt = None
self.__highlight = QadHighlight(self.canvas)
def __fromPoyline(self, pointList): # funzione privata
# restituisce entityType, qadGeom
arc = QadArc()
startEndVertices = arc.fromPolyline(pointList, 0)
# se la polilinea è composta solo da un arco
if startEndVertices and startEndVertices[0] == 0 and startEndVertices[1] == len(pointList)-1:
return QadEntityGeomTypeEnum.ARC, arc # oggetto arco
else:
circle = QadCircle()
if circle.fromPolyline(pointList): # se la polilinea è un cerchio
return QadEntityGeomTypeEnum.CIRCLE, circle # oggetto cerchio
else:
linearObjectList = qad_utils.QadLinearObjectList() # oggetto QadLinearObjectList
linearObjectList.fromPolyline(pointList)
return QadEntityGeomTypeEnum.LINESTRING, linearObjectList
return QadEntityGeomTypeEnum.NONE, None
def doDivide(self, dstLayer):
f = self.entSelClass.entity.getFeature()
if f is None:
return
layer = self.entSelClass.entity.layer
# trasformo la geometria nel crs del canvas per lavorare con coordinate piane xy
geom = self.layerToMapCoordinates(layer, f.geometry())
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(self.entSelClass.point,
geom)
if dummy[2] is None:
return False
# ritorna la sotto-geometria al vertice <atVertex> e la sua posizione nella geometria (0-based)
subGeom, atSubGeom = qad_utils.getSubGeomAtVertex(geom, dummy[2])
pathLinearObjectList = qad_utils.QadLinearObjectList()
geomType = subGeom.type()
pathLinearObjectList.fromPolyline(subGeom.asPolyline())
distance = pathLinearObjectList.length() / self.nSegments
self.plugIn.beginEditCommand("Feature divided", dstLayer)
i = 1
distanceFromStart = distance
while i < self.nSegments:
pt, rot = pathLinearObjectList.getPointFromStart(distanceFromStart)
if self.addFeature(dstLayer, pt,
rot if self.objectAlignment else 0) == False:
self.plugIn.destroyEditCommand()
return False
i = i + 1
distanceFromStart = distanceFromStart + distance
self.plugIn.endEditCommand()
return True
def showLength(self, entity, pt):
# visualizza la lunghezza dell'entità in unità di mappa
geom = entity.getGeometry()
if geom is None:
errMsg = QadMsg.translate("QAD", "Invalid object.")
self.showErr("\n" + errMsg)
return None
# Trasformo il punto nel sistema di coordinate del layer
convPt = self.mapToLayerCoordinates(entity.layer, pt)
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(pt, geom)
if dummy[2] is None:
errMsg = QadMsg.translate("QAD", "Invalid object.")
self.showErr("\n" + errMsg)
return None
# ritorna la sotto-geometria al vertice <atVertex> e la sua posizione nella geometria (0-based)
subGeom, atSubGeom = qad_utils.getSubGeomAtVertex(geom, dummy[2])
LinearObjectListToMisure = qad_utils.QadLinearObjectList()
pointList = subGeom.asPolyline()
LinearObjectListToMisure.fromPolyline(pointList)
# la trasformo in unità di mappa
LinearObjectListToMisure.transformFromCRSToCRS(entity.layer.crs(), self.plugIn.canvas.mapRenderer().destinationCrs())
msg = QadMsg.translate("Command_LENGTHEN", "\nCurrent length: {0}")
msg = msg.format(str(LinearObjectListToMisure.length()))
arc = QadArc()
startEndVertices = arc.fromPolyline(pointList, 0)
# se la polilinea è composta solo da un arco
if startEndVertices and startEndVertices[0] == 0 and startEndVertices[1] == len(pointList)-1:
msg = msg + QadMsg.translate("Command_LENGTHEN", ", included angle: {0}")
msg = msg.format(str(qad_utils.toDegrees(arc.totalAngle())))
self.showMsg(msg)
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 canvasMoveEvent(self, event):
QadGetPoint.canvasMoveEvent(self, event)
self.__rubberBand.reset()
tmpLinearObjectList = None
# si richiede la selezione del secondo oggetto
if self.mode == Qad_fillet_maptool_ModeEnum.ASK_FOR_SECOND_LINESTRING:
if self.tmpEntity.isInitialized():
# trasformo la geometria nel crs del canvas per lavorare con coordinate piane xy
geom = self.layerToMapCoordinates(self.tmpEntity.layer,
self.tmpEntity.getGeometry())
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(
self.tmpPoint, geom)
if dummy[2] is not None:
# ritorna la sotto-geometria al vertice <atVertex> e la sua posizione nella geometria (0-based)
subGeom, atSubGeom = qad_utils.getSubGeomAtVertex(
geom, dummy[2])
tmpLinearObjectList = qad_utils.QadLinearObjectList()
tmpLinearObjectList.fromPolyline(subGeom.asPolyline())
# la funzione ritorna una lista con (<minima distanza al quadrato>,
# <punto più vicino>
# <indice della parte più vicina>
# <"a sinistra di">)
dummy = tmpLinearObjectList.closestPartWithContext(
self.tmpPoint)
tmpPartAt = dummy[2]
tmpPointAt = dummy[1]
# stessa entità e stessa parte
if self.layer.id() == self.tmpEntity.layer.id() and \
self.featureId == self.tmpEntity.featureId and \
self.partAt == tmpPartAt:
return
# uso il crs del canvas per lavorare con coordinate piane xy
epsg = self.canvas.mapRenderer().destinationCrs().authid()
if self.tmpShiftKey == True: # tasto shift premuto durante il movimento del mouse
# filletMode = 1 # modalità di raccordo; 1=Taglia-estendi
# raggio = 0
res = qad_utils.getFilletLinearObjectList(self.linearObjectList, self.partAt, self.pointAt, \
tmpLinearObjectList, tmpPartAt, tmpPointAt,\
1, 0, epsg)
else:
res = qad_utils.getFilletLinearObjectList(self.linearObjectList, self.partAt, self.pointAt, \
tmpLinearObjectList, tmpPartAt, tmpPointAt,\
self.filletMode, self.radius, epsg)
if res is None: # raccordo non possibile
return
tmpLinearObjectList = res[0]
# si richiede la selezione della polilinea
elif self.mode == Qad_fillet_maptool_ModeEnum.ASK_FOR_POLYLINE:
if self.tmpEntity.isInitialized():
# trasformo la geometria nel crs del canvas per lavorare con coordinate piane xy
geom = self.layerToMapCoordinates(self.tmpEntity.layer,
self.tmpEntity.getGeometry())
# ritorna una tupla (<The squared cartesian distance>,
# <minDistPoint>
# <afterVertex>
# <leftOf>)
dummy = qad_utils.closestSegmentWithContext(
self.tmpPoint, geom)
if dummy[2] is not None:
# ritorna la sotto-geometria al vertice <atVertex> e la sua posizione nella geometria (0-based)
subGeom, atSubGeom = qad_utils.getSubGeomAtVertex(
geom, dummy[2])
tmpLinearObjectList = qad_utils.QadLinearObjectList()
tmpLinearObjectList.fromPolyline(subGeom.asPolyline())
tmpLinearObjectList.fillet(self.radius)
if tmpLinearObjectList is not None:
pts = tmpLinearObjectList.asPolyline(self.tolerance2ApproxCurve)
if self.layer.geometryType() == QGis.Polygon:
geom = QgsGeometry.fromPolygon([pts])
else:
geom = QgsGeometry.fromPolyline(pts)
# trasformo la geometria nel crs del canvas per lavorare con coordinate piane xy
geom = self.layerToMapCoordinates(self.layer, geom)
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 gripStretchQgsLineStringGeometry(geom, basePt, ptListToStretch, offSetX, offSetY, tolerance2ApproxCurve):
"""
Stira i punti di grip di una linestring che sono contenuti in ptListToStretch
geom = geometria da stirare
basePt = punto base
ptListToStretch = 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
newCircle = gripStretchCircle(obj, basePt, ptListToStretch, offSetX, offSetY, tolerance)
if newCircle is not None:
return QgsGeometry.fromPolyline(newCircle.asPolyline(tolerance))
elif objType == "ARC": # se é arco
newArc = gripStretchArc(obj, ptListToStretch, offSetX, offSetY, tolerance)
if newArc is not None:
return QgsGeometry.fromPolyline(newArc.asPolyline(tolerance))
return None
linearObjectListToStretch = qad_utils.QadLinearObjectList()
linearObjectListToStretch.fromPolyline(geom.asPolyline())
atPart = 0
while atPart < linearObjectListToStretch.qty():
linearObject = linearObjectListToStretch.getLinearObjectAt(atPart)
if linearObject.isSegment():
pt = linearObject.getStartPt()
if isPtContainedForStretch(pt, ptListToStretch): # se il punto è contenuto in ptListToStretch
# cambio punto iniziale
pt.setX(pt.x() + offSetX)
pt.setY(pt.y() + offSetY)
linearObject.setStartPt(pt)
pt = linearObject.getEndPt()
if isPtContainedForStretch(pt, ptListToStretch): # se il punto è contenuto in ptListToStretch
# cambio punto finale
pt.setX(pt.x() + offSetX)
pt.setY(pt.y() + offSetY)
linearObject.setEndPt(pt)
else: # se è arco
newArc, newInverseFlag = gripStretchArc(linearObject.getArc(), ptListToStretch, offSetX, offSetY, tolerance, linearObject.isInverseArc())
if newArc is None:
return None
linearObject.setArc(newArc, newInverseFlag)
atPart = atPart + 1
pt = linearObjectListToStretch.getCentroid(tolerance) # verifico se polilinea ha un centroide
if pt is not None:
if isPtContainedForStretch(pt, ptListToStretch): # se il punto è contenuto in ptListToStretch
linearObjectListToStretch.move(offSetX, offSetY)
pts = linearObjectListToStretch.asPolyline(tolerance)
stretchedGeom = QgsGeometry.fromPolyline(pts)
return stretchedGeom
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
