hazzy: 
´´´    def update_g5x_offset(self, g5x_offset):
        # determine change in g5x offset since path was drawn
        path_offset = [n - o for n, o in zip(g5x_offset[:3],
                                             self.original_g5x_offset[:3])]

        self.path_actors[0].SetPosition(*path_offset)
        self.path_actors[1].SetBounds(self.path_actors[0].GetBounds())
        self.update_render()
```