40 50 50 600.0 600.0
const 0.0
cos 5.0 4.0 10.0
sin 6.0 5.0 20.0
const 30.0
cossin 4.0 5.0 4.0 1.0 40.0
stepicrack 0.33 -3.0
stepicrack 0.16  7.0
linearcrack 0.2 0.1 5.0