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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。9 E! K1 r$ e0 w
加载程序，在命令行运行am% E Q9 {! N e! N& J: w" ^
0 p7 Y8 Y: ~' H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。. U1 e& g, e% a+ Z9 y9 y* w
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指定位置和高度，就可以用文字标注出来。
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(defun C:am (/ ss l i totalarea ename obj entarea): S; R6 \. E; ^; Z) m2 i3 ?( J1 b
(if (setq ss (ssget))* ]" m- ?) D; m5 B
(progn
" [3 x7 @' O% g3 C7 Z& M, h$ W6 G (vl-load-com); Y- {& ~" N8 b# G
(setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))
* g8 `( n" a6 s: J4 s (setq l (sslength ss) i 0 totalarea 0 totlength 0)% B% H6 h) M- U0 u! C" W0 `
(repeat l% \& M4 T! M7 v8 l3 b g5 _( C
(setq ename (ssname ss i))
5 ^: \2 q1 B) Z- l7 {1 f/ i% i (setq obj (vlax-ename->vla-object ename))
' I$ l$ k3 |& [" {2 E" A/ Q3 V ;;(vlax-dump-object obj T)
n2 m. y) ]7 n) f5 g# q (if (vlax-property-available-p obj "area")1 q. ~( ]$ q1 X7 A
(setq totalarea (+ (vlax-get-property obj 'area) totalarea))
4 @8 x U" C& L( V! M* V# M ): i4 o/ K/ y$ i% T" L
(if (= (cdr (assoc 0 (entget ename))) "MLINE")
* W% n/ C; s! N+ H% x9 v% M (setq totlength (+ totlength (ml-length ename)))7 @3 i1 v7 d, F5 L9 G
(setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))5 v+ n% _1 z, k& _; ^( _
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(setq i (1+ i)); k2 L% l4 e4 k) } z6 b( T# l8 D
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(setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")
9 c7 I* f+ A* Q text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")! ?) y( u- B5 }9 y. { Z4 c; r, v8 P
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(if (setq insertpt (getpoint "\n请输入文字插入点: "))
* _/ O# D! h; p5 o" D- @ (if (setq height (getdist "\n请输入文字高度:"))( c8 A% _, h; e3 C( h' }
(setq insertp1 (vlax-3d-point insertpt)
3 a9 K; y: [% M0 [$ a+ u2 o insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))9 Q N* |* c6 Z! n9 Y4 j2 J
textobj1 (vla-addtext modelspace text1 insertp1 height)6 I* ?' I' J% Z) ?5 v
textobj2 (vla-addtext modelspace text2 insertp2 height)+ P1 O; \+ W; a9 c8 I3 d
)
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(defun ml-length (ename / j d ptlist)3 ]& \( h# E: X
(foreach n (entget ename)2 Z {* r" Z, ]
(if (= (car n) 11)
6 M }$ Z i$ {+ V; G" F5 ?1 a (setq ptlist (cons (cdr n) ptlist))$ h0 x( j5 F. k/ ?: d
)
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8 n2 {5 Y3 W9 V+ j4 A (reverse ptlist), l2 |. h0 G- S* C4 |2 c2 A. K
(setq j 0 d 0)3 D7 T: ~6 }/ v9 E; e) A/ W
(repeat (1- (length ptlist))
& @ M$ u: ?# E7 J( u (setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))
2 A0 L( N J/ P- \' c8 h (setq j (1+ j))
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发表于 2008-2-1 17:04:33
发表于 2008-2-2 09:28:39
楼主