profile p x 5 y 1 x -4 y 4 x -1 y -5
prism pr p 0 0 1
profile pp x 2 y -2 ww
plane pl 0 0 0.3 0 0 -1
ttranslate pp 0.5 2.5 0.3
featlf pr pp pl 0 0 0.3 0 0 -0.2 1 1
featperform lf result 


checkprops result -s 42.5
