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I'm trying to input sequencial points from a list into a command line function. I can't seem to get the command to accept more than one point. What I am ultimately making is a function that selects everything within a selected polyline. This is my test:
(defun c:eb ()
(setq obj(entget (car (entsel"\nSelect the Polygon"))))
(setq objNum (cdr (assoc 90 obj))); Number of Vertices
(setq verts (get-vertices obj))
(setq N 0)
;(setq NStr (itoa N))
;(setq final (strcat "(nth " NStr " verts)"))
(setq final (nth N verts))
(setq objNum (- objNum 1))
(repeat objNum
(setq N (+ N 1))
(setq NStr (itoa N))
;(setq final (strcat final "(nth " NStr " verts)"))
(setq final (append final (nth N verts)))
); End repeat
(command "pline" final pause)
(princ)
); End defun
Thanks Jason and Bill! I'm using Jasons code because of it's simplicity. My tests are working fine so far for simple closed polylines, but a road edge that I'm clipping out the topo from is giving me the error: "polygon segment is zero length". With some loop checking I should be able to get rid of these points from my list I guess. Thanks again guys.
