*rooftile,Spanish roof tile   TIP507 (c)1990 Michael Ross
  0,          4,3, 0,15,                    2,-8
 45,          0,0, 17.678,3.536,            2.828427125,-39.59797975
135,         10,0, 17.678,-3.536,           2.828427125,-39.59797975
 26.56505118, 2,2, 24.59674775,4.47213595,  2.23606798,-31.30495168
333.43494882, 6,3, 24.59674775,-4.47213595, 2.23606798,-31.3045168
 90,          0,0, 0,10