Assuming I've understood correctly, try the following:- (defun c:linedupes ( / a b f i l m p r s x ) (setq f 1e-3) ;; Fuzz (if (setq s (ssget "_X" (list '(0 . "LINE") (if (= 1 (getvar 'cvport)) (cons 410 (getvar 'ctab)) '(410 . "Model"))))) (progn (repeat (setq i (sslength s)) (setq x (entget (ssname s (setq i (1- i)))) l (cons (list (cdr (assoc 10 x)) (cdr (assoc 11 x)) (assoc -1 x)) l) ) ) (while (setq a (car l)) (foreach b (setq l (cdr l)) (cond ( (and (equal (car a) (car b) f) (equal (cadr a) (cadr b) f) ) (setq m (cons b m)) ) ( (and (equal (cadr a) (car b) f) (equal (car a) (cadr b) f) ) (setq m (cons (list (cadr b) (car b) (last b)) m)) ) ) ) (if m (setq r (cons (cons a m) r) m nil)) ) (foreach x r (setq p (mapcar '(lambda ( a b ) (cons a (avgpt b))) '(10 11) (list (mapcar 'car x) (mapcar 'cadr x)) ) ) (foreach y x (entmod (cons (last y) p))) ) ) ) (princ))(defun avgpt ( l ) (mapcar '(lambda ( x ) (/ x (length l))) (apply 'mapcar (cons '+ l))))(princ)
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