This problem confused me for a long time. I tried many many times but it didn’t work. When I used drape command in Rhino directly and draw the window by hand, it is OK. However, it failed when i use python script to create “drape”, it got strange drape surface like below pic. the python script is : rs.Command("_drape _AutoSpacing=Yes spacing=1 400,400 800,0 ") anything wrong?
Appreciate much if anyone can help.