scale command in autolisp routin
@aliozcicek wrote:
.... command ending with "nil"
....
Does it Scale things as you want? If so, don't worry about the nil return at the end -- the (command) function always returns nil [read about it in Help]. You can suppress that nil return by ending the routine with a:
(princ)
function with no arguments, which "exits quietly" [read about that, too, also (print) and (prin1)] -- you will see that at the end of many AutoLisp routines on this Forum.
You may be interested in my routine to Scale multiple objects [of all types, not just Lines and Polylines] about each one's center/middle, ScaleAboutCenters.lsp with its SAC command, available >>here<< or at >>this Post<<. It uses the midpoint of each object's bounding box, so in the case of a Polyline that is not just a single line segment, the base point it finds will sometimes be different from yours, which uses the point half-way between the start and end vertices.
