def __init__(self):
     Polyhedron.__init__(
         self,
         points=np.array([
             [1.0, 1.0, -1.0],
             [1.0, -1.0, 1.0],
             [-1.0, 1.0, 1.0],
         ]),
         faces=[[0, 1, 2]],
     )
     self.scale(np.array([0.02, 0.02, 0.02]))