def _getPln(self, arg: Shape) -> gp_Pln:
if isinstance(arg, Face):
rv = gp_Pln(self._getPnt(arg), arg.normalAt().toDir())
elif isinstance(arg, (Edge, Wire)):
normal = arg.normal()
origin = arg.Center()
plane = Plane(origin, normal=normal)
rv = plane.toPln()
else:
raise ValueError(f"Cannot construct a plane for {arg}.")
return rv
def toPln(self) -> gp_Pln:
return gp_Pln(
gp_Ax3(self.origin.toPnt(), self.zDir.toDir(), self.xDir.toDir()))