def snapToExtOrtho(self,last,constrain,eline):
"returns an ortho X extension snap location"
if self.isEnabled("extension") and self.isEnabled("ortho"):
if constrain and last and self.constraintAxis and self.extLine:
tmpEdge1 = Part.Line(last,last.add(self.constraintAxis)).toShape()
tmpEdge2 = Part.Line(self.extLine.p1(),self.extLine.p2()).toShape()
# get the intersection points
pt = fcgeo.findIntersection(tmpEdge1,tmpEdge2,True,True)
if pt:
return [pt[0],'ortho',pt[0]]
if eline:
try:
tmpEdge2 = Part.Line(self.extLine.p1(),self.extLine.p2()).toShape()
# get the intersection points
pt = fcgeo.findIntersection(eline,tmpEdge2,True,True)
if pt:
return [pt[0],'ortho',pt[0]]
except:
return None
return None
def snapToElines(self,e1,e2):
"returns a snap location at the infinite intersection of the given edges"
snaps = []
if self.isEnabled("intersection") and self.isEnabled("extension"):
if e1 and e2:
# get the intersection points
pts = fcgeo.findIntersection(e1,e2,True,True)
if pts:
for p in pts:
snaps.append([p,'intersection',p])
return snaps
def getAxisPoints(self, obj):
"returns the gridpoints of linked axes"
from draftlibs import fcgeo
pts = []
if len(obj.Axes) == 1:
for e in obj.Axes[0].Shape.Edges:
pts.append(e.Vertexes[0].Point)
elif len(obj.Axes) >= 2:
set1 = obj.Axes[0].Shape.Edges
set2 = obj.Axes[1].Shape.Edges
for e1 in set1:
for e2 in set2:
pts.extend(fcgeo.findIntersection(e1, e2))
return pts
def getAxisPoints(self,obj):
"returns the gridpoints of linked axes"
from draftlibs import fcgeo
pts = []
if len(obj.Axes) == 1:
for e in obj.Axes[0].Shape.Edges:
pts.append(e.Vertexes[0].Point)
elif len(obj.Axes) >= 2:
set1 = obj.Axes[0].Shape.Edges
set2 = obj.Axes[1].Shape.Edges
for e1 in set1:
for e2 in set2:
pts.extend(fcgeo.findIntersection(e1,e2))
return pts
def snapToOrtho(self,shape,last,constrain):
"returns a list of ortho snap locations"
snaps = []
if self.isEnabled("ortho"):
if constrain:
if isinstance(shape,Part.Edge):
if last:
if isinstance(shape.Curve,Part.Line):
if self.constraintAxis:
tmpEdge = Part.Line(last,last.add(self.constraintAxis)).toShape()
# get the intersection points
pt = fcgeo.findIntersection(tmpEdge,shape,True,True)
if pt:
for p in pt:
snaps.append([p,'ortho',p])
return snaps
def zOverlaps(self,face1,face2):
"Checks if face1 overlaps face2 in Z direction"
face1 = self.flattenFace(face1)
face2 = self.flattenFace(face2)
# first we check if one of the verts is inside the other face
for v in face1[0].Vertexes:
if self.isInside(v,face2):
return True
# even so, faces can still overlap if their edges cross each other
for e1 in face1[0].Edges:
for e2 in face2[0].Edges:
if fcgeo.findIntersection(e1,e2):
return True
return False
def snapToIntersection(self,shape):
"returns a list of intersection snap locations"
snaps = []
if self.isEnabled("intersection"):
# get the stored objects to calculate intersections
if self.lastObj[0]:
obj = FreeCAD.ActiveDocument.getObject(self.lastObj[0])
if obj:
if obj.isDerivedFrom("Part::Feature"):
if (not self.maxEdges) or (len(obj.Shape.Edges) <= self.maxEdges):
for e in obj.Shape.Edges:
# get the intersection points
pt = fcgeo.findIntersection(e,shape)
if pt:
for p in pt:
snaps.append([p,'intersection',p])
return snaps
def zOverlaps(self, face1, face2):
"Checks if face1 overlaps face2 in Z direction"
face1 = self.flattenFace(face1)
face2 = self.flattenFace(face2)
# first we check if one of the verts is inside the other face
for v in face1.Vertexes:
if self.isInside(v, face2):
return True
# even so, faces can still overlap if their edges cross each other
for e1 in face1.Edges:
for e2 in face2.Edges:
if fcgeo.findIntersection(e1, e2):
return True
return False