4.51.grs

UG二次开发很好的东西 需要的朋友可以下载来看看 很好用啊

entity/pt1,elps1,cr1,p(5),gc1,pl1,pl2,pl3

pt1=point/15,10,0
elps1=ellips/pt1,5,2.5
cr1=circle/5,5,0,5
p(1)=point/-5,5,0
p(2)=point/-7.5,7,0
p(3)=point/-10,8,0
p(4)=point/-12.5,7,0
p(5)=point/-15,5,0
gc1=gconic/p(1),p(2),p(3),p(4),p(5)
pl1=plane/elps1
pl2=plane/cr1
pl3=gc1
halt