(-250.0,250.0) (250.0,250.0)
(-250.0,-250.0) (250.0,-250.0)
(-250.0,250.0) (-250.0,-250.0)
(250.0,250.0) (250.0,-250.0)
(-100.0,0.0) (100.0,0.0)
(0.0, -100.0) (0.0, 100.0)