#G4---------------------------------------------- profile p c 5 180 l 5 t 0 5 d -1 0 c 5 180 l 5 polyline w 0 0 0 0 0 10 pipe p w p nexplode p f depouille result p 0 0 1 p_1 5 0 0 0 0 0 1 \ p_7 1 0 0 0 0 0 1 \ p_8 5 0 0 0 0 0 1 \ p_2 1 0 0 0 0 0 1 set square 659.647