[转贴]：vp-outline
;;; vp-outline.lsp
;;;
;;; Creates a polyline in modelspace that
;;; has the outline of the selected viewport.
;;; Supports clipped viewports.
;;; If vp-outline is called when in mspace it detects
;;; the active viewport.
;;;
;;; c:vp-outline
;;;
;;; By Jimmy Bergmark
;;; Copyright (C) 1997-2005 JTB World, All Rights Reserved
;;; Website: www.jtbworld.com
;;; E-mail: info@jtbworld.com
;;;
;;; 2000-04-10
;;; 2003-11-19 Added support for drawing the outline in other ucs/view than world/current
;;;
;;; Tested on AutoCAD 2000, 2000i, 2002, 2004
(defun dxf (n ed) (cdr (assoc n ed)))
(defun ax:List->VariantArray (lst)
(vlax-Make-Variant
(vlax-SafeArray-Fill
(vlax-Make-SafeArray
vlax-vbDouble
(cons 0 (- (length lst) 1))
)
lst
)
)
)
(defun c:vp-outline (/ ad ss ent pl plist xy n vpbl vpur msbl msur ven vpno ok)
(setq ad (vla-get-activedocument (vlax-get-acad-object)))
(if (= (getvar "tilemode") 0)
(progn
(if (= (getvar "cvport") 1)
(progn
(if (setq ss (ssget ":E:S" '((0 . "VIEWPORT"))))
(progn
(setq ent (ssname ss 0))
(setq vpno (dxf 69 (entget ent)))
(vla-Display (vlax-ename->vla-object ent) :vlax-true)
(vla-put-mspace ad :vlax-true) ; equal (command "._mspace")
; this to ensure trans later is working on correct viewport
(setvar "cvport" vpno)
(vla-put-mspace ad :vlax-false) ; equal (command "._pspace")
(setq ok T)
)
)
)
(setq ent (vlax-vla-object->ename (vla-get-activepviewport ad))
okT
)
)
(if ok
(progn
(setq ven (vlax-ename->vla-object ent))
(if (/= 1 (logand 1 (dxf 90 (entget ent)))) ; detect perspective
(if (= (vla-get-clipped ven) :vlax-false)
(progn ; not clipped
(vla-getboundingbox ven 'vpbl 'vpur)
(setq msbl(trans (vlax-safearray->list vpbl) 3 2)
msbl(trans msbl 2 1)
msbl(trans msbl 1 0)
msur(trans (vlax-safearray->list vpur) 3 2)
msur(trans msur 2 1)
msur(trans msur 1 0)
plist (list (car msbl) (cadr msbl)
(car msur) (cadr msbl)
(car msur) (cadr msur)
(car msbl) (cadr msur)
)
)
)
(progn ; clipped
(setq pl (entget (dxf 340 (entget ent)))
plist (vla-get-coordinates
(vlax-ename->vla-object (dxf -1 pl))
)
plist (vlax-safearray->list (vlax-variant-value plist))
n 0
pl nil
)
(repeat (/ (length plist) 2)
(setq xy (trans (list (nth n plist) (nth (1+ n) plist)) 3 2)
xy(trans xy 2 1)
xy(trans xy 1 0)
pl (cons (car xy) pl)
pl (cons (cadr xy) pl)
n(+ n 2)
)
)
(setq plist (reverse pl))
)
)
)
(setq plist (ax:List->VariantArray plist))
(vla-Put-Closed
(vla-AddLightWeightPolyline
(vla-get-ModelSpace ad)
plist
)
:vlax-True
)
)
)
)
)
(princ)
)
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