def snapToPolar(self,point,last):
"snaps to polar lines from the given point"
if self.isEnabled('ortho'):
if last:
vecs = []
if hasattr(FreeCAD,"DraftWorkingPlane"):
ax = [FreeCAD.DraftWorkingPlane.u,
FreeCAD.DraftWorkingPlane.v,
FreeCAD.DraftWorkingPlane.axis]
else:
ax = [FreeCAD.Vector(1,0,0),
FreeCAD.Vector(0,1,0),
FreeCAD.Vector(0,0,1)]
for a in self.polarAngles:
if a == 90:
vecs.extend([ax[0],fcvec.neg(ax[0])])
vecs.extend([ax[1],fcvec.neg(ax[1])])
else:
v = fcvec.rotate(ax[0],math.radians(a),ax[2])
vecs.extend([v,fcvec.neg(v)])
v = fcvec.rotate(ax[1],math.radians(a),ax[2])
vecs.extend([v,fcvec.neg(v)])
for v in vecs:
de = Part.Line(last,last.add(v)).toShape()
np = self.getPerpendicular(de,point)
if (np.sub(point)).Length < self.radius:
if self.tracker:
self.tracker.setCoords(np)
self.tracker.setMarker(self.mk['parallel'])
self.tracker.on()
self.setCursor('ortho')
return np,de
return point,None
def alignToPointAndAxis(self, point, axis, offset, upvec=None):
self.doc = FreeCAD.ActiveDocument
self.axis = axis;
self.axis.normalize()
if (fcvec.equals(axis, Vector(1,0,0))):
self.u = Vector(0,1,0)
self.v = Vector(0,0,1)
elif (fcvec.equals(axis, Vector(-1,0,0))):
self.u = Vector(0,-1,0)
self.v = Vector(0,0,1)
elif upvec:
self.v = upvec
self.v.normalize()
self.u = self.v.cross(self.axis)
else:
self.v = axis.cross(Vector(1,0,0))
self.v.normalize()
self.u = fcvec.rotate(self.v, -math.pi/2, self.axis)
offsetVector = Vector(axis); offsetVector.multiply(offset)
self.position = point.add(offsetVector)
self.weak = False
def alignToPointAndAxis(self, point, axis, offset, upvec=None):
self.doc = FreeCAD.ActiveDocument
self.axis = axis
self.axis.normalize()
if (fcvec.equals(axis, Vector(1, 0, 0))):
self.u = Vector(0, 1, 0)
self.v = Vector(0, 0, 1)
elif (fcvec.equals(axis, Vector(-1, 0, 0))):
self.u = Vector(0, -1, 0)
self.v = Vector(0, 0, 1)
elif upvec:
self.v = upvec
self.v.normalize()
self.u = self.v.cross(self.axis)
else:
self.v = axis.cross(Vector(1, 0, 0))
self.v.normalize()
self.u = fcvec.rotate(self.v, -math.pi / 2, self.axis)
offsetVector = Vector(axis)
offsetVector.multiply(offset)
self.position = point.add(offsetVector)
self.weak = False