Leaderboard

my problem has been resolved. Thank you to all of you

Too many issues. You have two extra brackets in the first routine: N-K Then the mid-point function won't work on polylines because they don't have the DXF GC 11 as end points and that works only with line objects. ....... etc

(defun C:GetPente() (setq ggg (GetPente (car (entsel))))) In the code above there is no function GetPente (setq elev(get_tile "userinput") would be better with a space in between elev(get_tile (setq elev (get_tile "userinput") I'll often comment out code if I can't work out what is going wrong - starting at the beginning so only a few lines run, and add a few lines back in at a time until I find the error, might halp with debugging especially things like no function definition or typing errors in variables

my problem has been resolved. Thank you to all of you

Wow, thank you very much. I already understand which parts I need to change and what I need to improve. Now the code is working as I expected