#A5---------------------------------------------- plane p 0 0 0 1 0 0 pcylinder p p 15 20 profile pf o 5 1 5 l 10 c 2 90 l 5 d -1 0 \ l 14 d 0 -1 l 5 c 2 90 polyline pl 0 0 5 0 0 30 pipe p2 pl pf bfuse f p p2 nexplode f f depouille result f 0 0 1 f_5 5 0 0 29 0 0 1 set square 3953.7