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 DraftGeomUtils(shape) == "Line":
if self.constraintAxis:
tmpEdge = Part.Line(last,last.add(self.constraintAxis)).toShape()
# get the intersection points
pt = DraftGeomUtils.findIntersection(tmpEdge,shape,True,True)
if pt:
for p in pt:
snaps.append([p,'ortho',p])
return snaps
