本帖最后由 作者 于 2004-12-25 19:35:46 编辑
 - ;;;考虑不全,应付楼主图示应该没问题。(defun c:test023 (/ p1 p2 p3 p4 dst ang p1a p2a p3a p4a lst)
- (cmdla0)
- (setq no1 (ureal 1 "" "打断距离" no1))
- (while (setq e (car (entsel "\n选择A层线<退出> : ")))
- (setq pt1 (vlax-curve-getstartPoint e)
- pt2 (vlax-curve-getEndPoint e)
- p1 (polar pt1 (* pi 1.5) (/ no1 2))
- p2 (polar pt2 (* pi 0.5) (/ no1 2))
- p3 (list (car p2) (cadr p1))
- p4 (list (car p1) (cadr p2))
- dst (/ (distance p1 p2) 100.0)
- ang (angle p1 p2)
- p1a (polar p1 ang dst)
- p2a (polar p2 ang (- 0 dst))
- p3a (list (car p2a) (cadr p1a))
- p4a (list (car p1a) (cadr p2a))
- )
- (setvar "osmode" 0)
- (command "undo" "be")
- (command "rectang" p1 p2)
- (setq lst (entlast))
- (command "_.trim" lst "" "f" p1a p3a p2a p4a p1a "" "")
- (entdel lst)
- (command "undo" "e")
- )
- (cmdla1)
- )
- (defun CMDLA0 ()
- (setq cmd (getvar "CMDECHO"))
- (setq oom (getvar "orthomode"))
- (setq osm (getvar "osmode"))
- (setq hlt (getvar "highlight"))
- (setq rmode (getvar "regenmode"))
- (setvar "regenmode" 0)
- (setvar "CMDECHO" 0)
- (princ)
- )
- (defun CMDLA1 ()
- (setvar "CMDECHO" cmd)
- (setvar "orthomode" oom)
- (setvar "osmode" osm)
- (setvar "highlight" hlt)
- (setvar "regenmode" rmode)
- (princ)
- )
- (defun ureal (bit kwd msg def / inp)
- (if def
- (setq msg (strcat "\n" msg "<" (rtos def 2) ">: ")
- bit (* 2 (fix (/ bit 2)))
- )
- (setq msg (strcat "\n" msg ": "))
- )
- (initget bit kwd)
- (setq inp (getreal msg))
- (if inp
- inp
- def
- )
- )
- ;;;END
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