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发表于 2013-9-8 06:35:48
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试试这个：
;;;
;;; EXTRIM.LSP
;;; Copyright ?1999 by Autodesk, Inc.
;;;
;;; Your use of this software is governed by the terms and conditions of the
;;; License Agreement you accepted prior to installation of this software.
;;; Please note that pursuant to the License Agreement for this software,
;;; "[c]opying of this computer program or its documentation except as
;;; permitted by this License is copyright infringement under the laws of
;;; your country. If you copy this computer program without permission of
;;; Autodesk, you are violating the law."
;;;
;;; AUTODESK PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
;;; AUTODESK SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
;;; MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
;;; DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
;;; UNINTERRUPTED OR ERROR FREE.
;;;
;;; Use, duplication, or disclosure by the U.S. Government is subject to
;;; restrictions set forth in FAR 52.227-19 (Commercial Computer
;;; Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
;;; (Rights in Technical Data and Computer Software), as applicable.
;;;
;;; ----------------------------------------------------------------
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;Extended-TRIM - cookie-cutter routine
;
;Select a polyline, line, circle or arc and a side to trim on
;
(load "acetutil.fas")
(defun c:te (/ na e1 e2 p1 redraw_it lst n keep)
(acet-error-init
(list
(list "cmdecho" 0 "highlight" 0 "regenmode"
1 "osmode" 0 "ucsicon" 0
"offsetdist" 0 "attreq" 0
"plinewid" 0 "plinetype" 1 "gridmode"
0 "celtype" "CONTINUOUS" "ucsfollow"
0 "limcheck" 0
)
T ;flag. True means use undo for error clean up.
'(if
redraw_it
(redraw na 4)
)
) ;list
) ;acet-error-init
;local function
(defun dxf (a b /) (cdr (assoc a b))) ;defun
(princ
"\n拾取多段线、直线、圆、圆弧、椭圆、图像或文字来剪切边界..."
)
(setq na (acet-ui-single-select
'((-4 . "<OR")
(0 . "CIRCLE")
(0 . "ARC")
(0 . "LINE")
(0 . "ELLIPSE")
(0 . "ATTDEF")
(0 . "TEXT")
(0 . "MTEXT")
(0 . "IMAGE")
(0 . "LWPOLYLINE")
(-4 . "<AND")
(0 . "POLYLINE")
(-4 . "<NOT")
(-4 . "&")
(70 . 112)
(-4 . "NOT>")
(-4 . "AND>")
(-4 . "OR>")
)
T
) ;acet-ui-single-select
) ;setq
(if na
(progn
(setq e1 (entget na))
;;setq
(if (or (equal "TEXT" (cdr (assoc 0 e1)))
(equal "MTEXT" (cdr (assoc 0 e1)))
(equal "ATTDEF" (cdr (assoc 0 e1)))
(equal "IMAGE" (cdr (assoc 0 e1)))
) ;or
(progn
;;保留*******
(setq keep na)
;;************
(setq lst (acet-geom-object-point-list na nil))
(setq n 0)
(command "_.pline")
(repeat (length lst)
(command (nth n lst))
(setq n (+ n 1)) ;setq
) ;repeat
(if (not (equal (car lst) (last lst) 0.0000001))
(command "_cl")
(command "")
) ;if
(setq na (entlast)
e1 na
) ;setq
) ;progn then draw a temp pline to be the cutting edge.
(setq e1 nil)
) ;if
(redraw na 3)
(setq redraw_it T)
(setq p1 (getpoint "\n指定要修剪的一侧:")) ;setq
(redraw na 4)
(setq redraw_it nil)
;;*********************************************************
;;剪切
(if p1
(xtrim na p1)
) ;if
;;删除
(setq e2 (entget na))
(if (or (= (dxf 0 e2) "LWPOLYLINE")
(= (dxf 0 e2) "POLYLINE")
(= (dxf 0 e2) "CIRCLE")
(= (dxf 0 e2) "ELLIPSE")
)
(progn
(xdel na p1 keep)
)
)
;;*********************************************************
(if e1
(progn
(if (setq p1 (acet-layer-locked (getvar "clayer")))
(command "_.layer" "_un" (getvar "clayer") "")
) ;if
(entdel e1)
(if p1
(command "_.layer" "_lock" (getvar "clayer") "")
) ;if
) ;progn
) ;if
) ;progn
) ;if
(acet-error-restore)
(princ)
) ;defun c:extrim
;;删除封闭多边形以内或以外的所有实体
(defun xdel (edge pt keep / pts side edge2 edge3 a1
a2 pts2 wpt p1 p2 oss iss na n
)
;;确定是删除内部还是外部实体
(setq pts (acet-geom-object-point-list edge nil))
(command "_.area" "_ob" edge)
(setq a1 (getvar "area"))
(command "offset" (acet-geom-pixel-unit) edge pt "")
(setq edge2 (entlast))
(command "_.area" "_ob" edge2)
(setq a2 (getvar "area"))
(if (> a1 a2)
(setq side "I")
(setq side "O")
)
(setq pts2 (acet-geom-object-point-list edge2 nil))
(entdel edge2)
(setq wpt (acet-geom-list-extents pts)
p1 (car wpt)
p2 (cadr wpt)
)
;(command "_.zoom" "_w" p1 p2)
;;选择删除部分实体
(setq oss (ssget "_x"))
(if (= side "O")
(setq iss (ssget "_wp" pts2)
iss (ssadd edge iss)
)
(setq iss (ssget "_cp" pts2))
)
(if (not iss)
(setq iss (ssadd))
)
(setq n 0)
(repeat (sslength iss)
(setq na (ssname iss n))
(if (ssmemb na oss)
(setq oss (ssdel na oss)) ;setq then
) ;if
(setq n (+ n 1)) ;setq
) ;repeat
(if keep
(progn
(if (ssmemb keep oss)
(setq oss (ssdel keep oss))
)
(if (ssmemb keep iss)
(setq iss (ssdel keep iss))
)
)
)
;;删除实体
(if (= side "I")
(command "erase" iss "")
(command "erase" oss "")
)
;(command "_.zoom" "_p")
;;再次选择并删除
)
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
;Entity-TRIM function
;takes: na - entity name
; a - a point, the side to trim on
;NOTE: This function does not allow for the possible miss of
; non-continuous linetypes.
;
(defun xtrim (na a / la b d e1 lst lst2 n j
k m ss na2 na3 na4 x y z flag flag2
flag3 zlst
)
(setq e1 (entget na)) ;setq
(if (or (setq flag (equal (acet-dxf 0 e1) "POLYLINE"))
(setq flag (equal (acet-dxf 0 e1) "LWPOLYLINE"))
(equal (acet-dxf 0 e1) "LINE")
(equal (acet-dxf 0 e1) "CIRCLE")
(equal (acet-dxf 0 e1) "ARC")
(equal (acet-dxf 0 e1) "ELLIPSE")
(equal (acet-dxf 0 e1) "TEXT")
(equal (acet-dxf 0 e1) "ATTDEF")
(equal (acet-dxf 0 e1) "MTEXT")
) ;or
(progn
(if (and flag
(equal 8 (logand 8 (acet-dxf 70 e1)))
) ;and
(setq flag nil)
) ;if
(setq a (trans a 1 0)) ;setq
(command "_.ucs" "_View")
(setq lst (acet-geom-object-point-list na nil)
;;;find extents of selected cutting edge object
lst (acet-geom-list-extents lst)
x (- (car (cadr lst)) (car (car lst)))
y (- (cadr (cadr lst)) (cadr (car lst)))
x (* 0.075 x)
y (* 0.075 y)
z (list x y)
x (list (+ (car (cadr lst)) (car z))
(+ (cadr (cadr lst)) (cadr z))
) ;list
y (list (- (car (car lst)) (car z))
(- (cadr (car lst)) (cadr z))
) ;list
zlst (zoom_2_object (list x y))
) ;setq
;(command "_.zoom" "_w" x y)
(command "_.zoom" "_w" (car zlst) (cadr zlst))
(entupd na)
;;;update the ent. so it's curves display smoothly
(setq lst (acet-geom-object-point-list
na
(/ (acet-geom-pixel-unit) 2.0)
)
) ;setq
(if (or (not flag)
(not (acet-geom-self-intersect lst nil))
) ;or
(progn
;then the object is valid and not a self intersecting polyline.
(if (and flag
(equal (car lst) (last lst) 0.0001)
) ;and
(setq flag3 T)
;then the polyline could potentialy need a second offset
) ;if
(if (setq la (acet-layer-locked (getvar "clayer")))
(command "_.layer" "_unl" (getvar "clayer") "")
) ;if
(command "_.pline")
(setq b nil)
(setq n 0) ;setq
(repeat (length lst)
(setq d (nth n lst))
(if (not (equal d b 0.0001))
(progn
(command d)
(setq lst2 (append lst2 (list d))) ;setq
(setq b d) ;setq
) ;progn
) ;if
(setq n (+ n 1))
) ;repeat
(command "")
(setq na2 (entlast)
ss (ssadd)
ss (ssadd na2 ss)
lst nil
) ;setq
(acet-ss-visible ss 1)
(setq lst2 (get_fence_points na2 a lst2 flag3 flag)) ;setq
(if la
(command "_.layer" "_lock" (getvar "clayer") "")
) ;if
(command "_.ucs" "_p")
;Move the ents to force a display update of the ents to avoid viewres problems.
(setvar "highlight" 0)
(if (setq ss (ssget "_f" (last lst2)))
(command "_.move" ss "" "0,0,0" "0,0,0")
) ;if
(if flag
(progn
(if (setq la (acet-layer-locked (acet-dxf 8 e1)))
(command "_.layer" "_unl" (acet-dxf 8 e1) "")
) ;if
(acet-ucs-set-z (acet-dxf 210 e1))
(command "_.copy" na "" "0,0,0" "0,0,0")
;(entdel na)
(acet-ss-visible (ssadd na (ssadd)) 1)
;make it invisible for a while.
;rk 12:01 PM 3/10/98
(setq na3 na
na (entlast)
) ;setq
(command "_.pedit" na "_w" "0.0" "_x")
(command "_.ucs" "_p")
(if la
(command "_.layer" "_lock" (acet-dxf 8 e1) "")
) ;if
) ;progn
) ;if
;;*********************************************************
;;将栏选线上的所有块(及内嵌块)、填充线、尺寸线炸开
(setq n 0)
(repeat (length lst2)
(setq ss (ssget "_f"
(nth n lst2)
'((-4 . "<OR")
(0 . "INSERT")
(0 . "HATCH")
(0 . "DIMENSION")
(-4 . "OR>")
)
)
)
(explodex ss)
(setq n (1+ n))
)
;;*********************************************************
(command "_.trim" na "")
(setq m (- (length lst2) 1)) ;setq
(setq k 0)
(repeat (length lst2)
(setq lst (nth k lst2))
(setq a (trans (car lst) 0 1))
(setq n 1)
(repeat (- (length lst) 1) ;repeat each fence list
(setq b (trans (nth n lst) 0 1))
(if (equal a b 0.0001)
(setq flag2 T)
(setq flag2 nil)
) ;if
(setq na4 nil) ;setq
(setq j 0) ;setq
(while (not flag2)
;repeat each segment of the fence until no new ents are created.
(setq na4 (entlast)) ;setq
(command "_F" a b "")
(if (and (equal na4 (entlast))
(or (not (equal k m))
(> j 0)
) ;or
) ;and
(setq flag2 T)
) ;if
(setq j (+ j 1)) ;setq
) ;while
(setq a b) ;setq
(setq n (+ n 1)) ;setq
) ;repeat
(setq k (+ k 1))
) ;repeat
(command "")
(if flag
(progn
(if (setq la (acet-layer-locked (acet-dxf 8 e1)))
(command "_.layer" "_unl" (acet-dxf 8 e1) "")
) ;if
(entdel na) ;get rid of the copy
;(entdel na3);bring back the original
(acet-ss-visible (ssadd na3 (ssadd)) 0)
;bring back the original
;rk 12:01 PM 3/10/98
(if la
(command "_.layer" "_lock" (acet-dxf 8 e1) "")
) ;if
) ;progn
) ;if
) ;progn
(progn
(command "_.ucs" "_p")
(princ "\n不接受自交边界。")
) ;progn else invalid self intersecting polyline
) ;if
;(command "_.zoom" "_p")
) ;progn then it's a most likely a valid entity.
) ;if
) ;defun etrim
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun another_offset
(pl1 pl2 a1 a2 b na2 lst2 a lst3 lst4 / na ss lst da1 da2)
(setq da1 (abs (- a2 a1))) ;setq
(setq da2 (- (* b (max pl2 pl1))
(/ (* b (abs (- pl2 pl1)))
2.0
)
)
) ;setq
(if (> (abs (- da2 da1))
(* 0.01 (max a1 a2))
)
(progn
(acet-pline-make (list lst2))
(setq na (entlast)
na2 (entlast)
ss (ssadd)
ss (ssadd na ss)
) ;setq
(acet-ss-visible ss 1)
(command "_.offset" b na2 a "")
(if (and (not (equal na (entlast)))
(setq lst3 (acet-geom-vertex-list (entlast)))
(setq lst3 (intersect_check lst2 lst3 lst4))
) ;and
(progn
(acet-ss-visible (ssadd (entlast) (ssadd)) 1)
(command "_.area" "_ob" (entlast))
(setq pl2 (getvar "perimeter")
a2 (getvar "area")
) ;setq
(setq lst (list (acet-geom-vertex-list (list (entlast) 0))))
;setq
(entdel (entlast))
;then offset was a success so delete the ent after getting it's info
) ;progn then
(if (not (equal na (entlast)))
(entdel (entlast))
) ;if else
) ;if
(entdel na2)
) ;progn then let's do that second offset
) ;if
lst
) ;defun another_offset
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun get_fence_points (na2 a lst2 flag plflag / a1 a2
pl1 pl2 b c d n lst lst3 lst4
na
)
(if flag
(progn
(setq lst2 (cdr lst2)) ;setq
(repeat (fix (/ (length lst2) 2))
(setq lst2 (append (cdr lst2) (list (car lst2))) ;append
) ;setq
) ;repeat
(setq lst2 (append lst2 (list (car lst2)))) ;setq
(command "_.area" "_ob" na2)
(setq pl1 (getvar "perimeter")
a1 (getvar "area")
) ;setq
) ;progn
) ;if
(setq a (trans a 0 1)
b (* (getvar "viewsize") 0.05) ;initial offset distance
n 3.0 ;number of offsets
d (/ b (- n 1)) ;delta offset
c (acet-geom-pixel-unit)
lst4 (acet-geom-view-points)
) ;setq
(while (> b c)
(setq na (entlast))
(command "_.offset" b na2 a "")
(if (and (not (equal na (entlast)))
(setq lst3 (acet-geom-vertex-list (entlast)))
(or (not plflag)
(setq lst3 (intersect_check lst2 lst3 lst4))
) ;or
) ;and
(progn
(setq lst3 (acet-geom-m-trans lst3 1 0))
(acet-ss-visible (ssadd (entlast) (ssadd)) 1)
(if flag
(progn
(command "_.area" "_ob" (entlast))
(setq pl2 (getvar "perimeter")
a2 (getvar "area")
) ;setq
) ;progn
) ;if
(setq lst (append lst (list lst3))) ;setq
(entdel (entlast))
;delete the ent after getting it's vertex info
(if flag
(setq lst
(append
lst
(another_offset pl1 pl2 a1 a2 b na2 lst2 a lst3 lst4)
) ;append
) ;setq
) ;if
) ;progn then offset was a success
(if (not (equal na (entlast)))
(entdel (entlast))
) ;if else
) ;if
(setq b (- b d)) ;setq
) ;while
(setq na (entlast))
(command "_.offset" c na2 a "")
(if (and (not (equal na (entlast)))
(setq lst3 (acet-geom-vertex-list (entlast)))
(or (not plflag)
(setq lst3 (intersect_check lst2 lst3 lst4))
) ;or
) ;and
(progn
(setq lst3 (acet-geom-m-trans lst3 1 0))
(acet-ss-visible (ssadd (entlast) (ssadd)) 1)
(if flag
(progn
(command "_.area" "_ob" (entlast))
(setq pl2 (getvar "perimeter")
a2 (getvar "area")
) ;setq
) ;progn
) ;if
(setq lst (append lst (list lst3))) ;setq
(entdel (entlast))
;then offset was a success so delete the ent after getting it's info
(if flag
(setq
lst (append
lst
(another_offset pl1 pl2 a1 a2 c na2 lst2 a lst3 lst4)
) ;append
) ;setq
) ;if
) ;progn then
(if (not (equal na (entlast)))
(entdel (entlast))
) ;if else
) ;if
(entdel na2)
lst
) ;defun get_fence_points
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;returns a list of points on screen if the first two lists do not
;contain segments that intersect each other.
;
(defun intersect_check (lst lst2 lst3 / x x2 y y2 lst4
flag len len2 a aa b bb c d
n j
)
(setq len (length lst)
len2 (length lst2)
x (car (car lst3))
x2 (car (cadr lst3))
y (cadr (car lst3))
y2 (cadr (cadr lst3))
) ;setq
(setq n 0) ;setq
(while (and (not flag)
(< (+ n 1) len2)
) ;and
(setq aa (nth n lst2)
bb (nth (+ n 1) lst2)
a (bns_truncate_2_view aa bb x y x2 y2)
b (bns_truncate_2_view bb aa x y x2 y2)
lst4 (append lst4 (list a))
) ;setq
(if (or (not (equal a aa))
(not (equal b bb))
) ;or
(setq lst4 (append lst4 (list b)))
) ;if
(setq j 0) ;setq
(while (and (not flag)
(< (+ j 1) len)
) ;and
(setq c (nth j lst)
d (nth (+ j 1) lst)
flag (inters a b c d)
) ;setq
(setq j (+ j 1)) ;setq
) ;while
(setq n (+ n 1)) ;setq
) ;while
(if (not (equal b (last lst4)))
(setq lst4 (append lst4 (list b))) ;setq
) ;if
(if (not flag)
(setq flag lst4)
(setq flag nil)
) ;if
flag
) ;defun intersect_check
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun zoom_2_object (lst / p1 p2 p3 p4 p5 p6 mp dx dy dx2 dy2 r1 r2 na
e1 x w h dv1 dv2 x)
(setq lst (acet-geom-m-trans lst 1 2)
p1 (acet-geom-m-trans (acet-geom-view-points) 1 2)
;p1 and p2 are the viewpnts
p2 (cadr p1)
p1 (car p1)
p1 (list (car p1) (cadr p1))
p2 (list (car p2) (cadr p2))
) ;setq
(if lst
(progn
(setq p5 (acet-geom-list-extents lst)
;p5 and p6 are the geometry points
p6 (cadr p5)
p5 (car p5)
p5 (list (car p5) (cadr p5))
p6 (list (car p6) (cadr p6))
mp (acet-geom-midpoint p5 p6)
;prepare to resize the geometry rectang to
dx (- (car p2) (car p1))
;have the same dy/dx ratio as p1 p2.
dy (- (cadr p2) (cadr p1))
dx2 (- (car p6) (car p5))
dy2 (- (cadr p6) (cadr p5))
) ;setq
(if (equal dx 0.0)
(setq dx 0.000001)
) ;just in case div by zero
(if (equal dx2 0.0)
(setq dx2 0.000001)
)
(setq r1 (/ dy dx)
r2 (/ dy2 dx2)
) ;setq
(if (< r2 r1)
(setq dy2 (* r1 dx2)) ;then scale dy2 up
(progn
(if (equal r1 0.0)
(setq r1 0.000001)
) ;just in case div by zero
(setq dx2 (* dy2 (/ 1.0 r1))) ;else scale dx2 up
) ;progn
) ;if
(setq p5 (list (- (car mp) (/ dx2 1.98))
;1.98 is used instead of 2.0 to expand
(- (cadr mp) (/ dy2 1.98)) ;the rectangle slightly
) ;list
p6 (list (+ (car mp) (/ dx2 1.98))
(+ (cadr mp) (/ dy2 1.98))
) ;list
) ;setq
) ;progn then lst
) ;if
(if (and lst
(equal 0 (getvar "tilemode"))
(not (equal 1 (getvar "cvport")))
) ;and
(progn
(setq na (ssget "_x"
(list '(0 . "VIEWPORT")
'(67 . 1)
(cons 69 (getvar "cvport"))
)
) ;ssget
na (ssname na 0)
e1 (entget na)
x (cdr (assoc 10 e1))
w (cdr (assoc 40 e1))
h (cdr (assoc 41 e1))
p3 (list (- (car x) (/ w 2.0))
(- (cadr x) (/ h 2.0))
) ;list
p4 (list (+ (car x) (/ w 2.0))
(+ (cadr x) (/ h 2.0))
) ;list
p3 (trans p3 3 2) ;p3 and p4 are the viewport points
p4 (trans p4 3 2)
dv1 (acet-geom-delta-vector p1 p3)
dv2 (acet-geom-delta-vector p2 p4)
x (distance p1 p2)
) ;setq
(if (equal 0 x)
(setq x 0.000001)
) ;just in case
(setq x (/ (distance p5 p6)
x
)
dv1 (acet-geom-vector-scale dv1 x)
dv2 (acet-geom-vector-scale dv2 x)
p5 (acet-geom-vector-add p5 dv1)
p6 (acet-geom-vector-add p6 dv2)
) ;setq
) ;progn then
) ;if
(setq p1 (list (car p1) (cadr p1) 0.0)
p2 (list (car p2) (cadr p2) 0.0)
p5 (list (car p5) (cadr p5) 0.0)
p6 (list (car p6) (cadr p6) 0.0)
) ;setq
(if lst
(setq lst (list (trans p5 2 1)
(trans p6 2 1)
) ;list
) ;setq
(setq lst nil)
) ;if
lst
) ;defun zoom_2_object
(defun explodex (ss / ss1 i ent flag flag1)
(cond
((= (type ss) 'ENAME)
(if (or (= "INSERT" (cdr (assoc 0 (entget ss))))
(= "HATCH" (cdr (assoc 0 (entget ss))))
(= "DIMENSION" (cdr (assoc 0 (entget ss))))
)
(progn
(command "_.explode" ss "")
(setq flag t)
)
(setq flag nil)
)
)
((= (type ss) 'PICKSET)
(setq i 0)
(repeat (sslength ss)
(setq ent (ssname ss i))
(setq flag1 (explodex ent))
(if flag1
(progn
(setq ss1 (ssget "P"))
(if
(and
ss1
(or
(> (sslength ss1) 1)
(= "INSERT" (cdr (assoc 0 (entget (ssname ss1 0)))))
(= "HATCH" (cdr (assoc 0 (entget (ssname ss1 0)))))
(= "DIMENSION" (cdr (assoc 0 (entget (ssname ss1 0)))))
)
)
(explodex ss1)
)
)
)
(setq i (1+ i))
)
)
)
flag
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(princ "\n***切图程序已加载,命令名:TE. __付胜余")
(princ)
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