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关于对于面积求和和长度求和，还是有很多用途，在这里写一个lisp程序。
! v9 X0 k) E7 Y+ h" `6 F" W加载程序，在命令行运行am5 ~3 R! E; A+ P- W
* ]! O5 u. O/ C1 T% t选择你要求和的物体，可以是line ,circle,arc ,ellipse ,spline, polyline,mline等，算出面积和长度。
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: U% a( t1 E3 ]7 y; o指定位置和高度，就可以用文字标注出来。
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! `9 V8 l& d. }' h6 q7 t( n P* ](defun C:am (/ ss l i totalarea ename obj entarea)
. ?( B S+ e* j, ]9 N" u* D (if (setq ss (ssget)) ]2 b% A: s7 }
(progn( W6 v7 `3 w1 c- D
(vl-load-com)
/ {9 A( |% v7 E: _, [ (setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))
; c% K9 I" x3 T) B0 C$ c8 D) C1 \8 r (setq l (sslength ss) i 0 totalarea 0 totlength 0)9 I% |: M' b5 o9 W9 D( V
(repeat l
m2 [' Q6 @: r- H7 I+ r' N/ f* k (setq ename (ssname ss i))+ x e; W* l) F, q7 h9 D
(setq obj (vlax-ename->vla-object ename))3 j) ~/ c; _# X" I$ M( I+ y. A
;;(vlax-dump-object obj T)' F6 ^0 D/ b; M0 u6 ?9 w; P2 n
(if (vlax-property-available-p obj "area")' D, z) E% P' ^( x7 m H' S$ |
(setq totalarea (+ (vlax-get-property obj 'area) totalarea))
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" n8 h% j/ {/ c4 o% ], p, i' Z0 a; l, O (if (= (cdr (assoc 0 (entget ename))) "MLINE")
7 Q5 E d* q( Y6 w- `. O (setq totlength (+ totlength (ml-length ename)))
/ X* N }3 ?+ x (setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))7 V3 y i) E7 n
)
2 {0 a5 E& K( c" p! h# k" [( X; e (setq i (1+ i))
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6 g2 @4 O* t% x, F; N# ^7 | (setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")1 a* _* x" Y- O$ F' X- ]) a8 a
text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")( f! Y. M+ h, e
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(if (setq insertpt (getpoint "\n请输入文字插入点: ")). }# ]8 R% c Z; b7 y) _
(if (setq height (getdist "\n请输入文字高度:"))+ Q6 W7 ?, G% a) p0 L" W. S% a
(setq insertp1 (vlax-3d-point insertpt)% T$ V! J: F2 v/ ?
insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))
2 e# B8 I, S4 S- m" X" f textobj1 (vla-addtext modelspace text1 insertp1 height)
! n% ]$ X* O+ A+ ~+ a, l' @ textobj2 (vla-addtext modelspace text2 insertp2 height)
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)
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(defun ml-length (ename / j d ptlist)) p7 k# K( l4 x, P
(foreach n (entget ename), H& ]& w5 \" I2 s
(if (= (car n) 11)
4 q( ~4 R0 ?. Q% v' t9 R6 Y (setq ptlist (cons (cdr n) ptlist))
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. X7 N7 Z0 K+ {1 V3 S9 | )
2 E# r5 J: ~& I* r% X% a5 W (reverse ptlist)
3 f8 ^, N1 v& U& E: A2 q9 a (setq j 0 d 0)! k' Q$ y0 p( V' ]$ T3 ] Q
(repeat (1- (length ptlist))* x* i' r6 T* J8 _9 Y6 u
(setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))- n5 a. N8 O$ Y% ^8 @
(setq j (1+ j))- W" F. V* E) R) g
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d
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发表于 2008-2-1 17:04:33
发表于 2008-2-2 09:28:39
楼主