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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。
, ]/ p6 w, n4 x1 Q' N+ H/ m: I加载程序，在命令行运行am
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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。) j) Q6 ~/ X' \" s
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指定位置和高度，就可以用文字标注出来。5 P& O' l+ {9 g q
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4 y9 F* Z' g* d& `/ S K, x: A(defun C:am (/ ss l i totalarea ename obj entarea); V [" Y/ X5 F, E$ q2 ]7 h' k
(if (setq ss (ssget)); H/ c# I% k# ~% z3 ?- J
(progn7 z( S& |, G. J! B g
(vl-load-com)* Q0 d; p6 p; f9 }8 _0 W
(setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))
* a* p w2 t. H$ p' z7 ~9 O (setq l (sslength ss) i 0 totalarea 0 totlength 0)
2 f( N. q0 V a8 [# } (repeat l( Y' d+ j8 K! g1 n( H& @6 x
(setq ename (ssname ss i))" X2 z! {/ N/ m5 E
(setq obj (vlax-ename->vla-object ename))
) e, [% l. P3 |9 W6 N- u/ b ;;(vlax-dump-object obj T)2 r# T7 d1 ^) Z$ ~: n
(if (vlax-property-available-p obj "area")
" _, k+ B, I' W9 k( u- g (setq totalarea (+ (vlax-get-property obj 'area) totalarea))& c& F# l1 B; t. w0 \: [
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(if (= (cdr (assoc 0 (entget ename))) "MLINE")
" y6 M6 I; {* A" t2 A9 z; q (setq totlength (+ totlength (ml-length ename)))7 `6 A" K' i$ E) x, L K
(setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))
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* A. C. l; u) { (setq i (1+ i)): y/ `% J/ M# N; V' M2 e- \
)
& v; [8 @6 ~- l& u% a! P3 i (setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")* x5 |3 E B' v. v l
text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")
Y$ ]- {# j7 f- y )
( R- B1 F" n& p N (if (setq insertpt (getpoint "\n请输入文字插入点: "))
* O% A# w( L6 ~# c; v" [ (if (setq height (getdist "\n请输入文字高度:")): S& e9 l: \/ M3 D: v
(setq insertp1 (vlax-3d-point insertpt)( s' u' h6 Y2 V1 {- w/ T( O
insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))" ]' ]; U% ]1 ]7 B
textobj1 (vla-addtext modelspace text1 insertp1 height)7 O5 B/ ?# S9 ]7 z2 T
textobj2 (vla-addtext modelspace text2 insertp2 height)
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)% s- H% ?. Y( [# l& ?% [- ]: Q
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(defun ml-length (ename / j d ptlist)8 N& `! I0 `+ T( `
(foreach n (entget ename)
5 Y9 ?: G5 C$ f (if (= (car n) 11)
/ t+ }$ H l+ B (setq ptlist (cons (cdr n) ptlist))+ r& l" ? |% U2 O
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)
& Q2 ~# [$ k7 Y( ^7 r: e (reverse ptlist)
. N0 {* b" c% H# J5 J: v H (setq j 0 d 0)9 q, t( Y C+ e e# g; ~
(repeat (1- (length ptlist))
# P0 W3 Y6 G2 N (setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))
( ]. C, u; d! ` (setq j (1+ j)); n- ^ J# s# B; t/ ?
)
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发表于 2008-2-1 17:04:33
发表于 2008-2-2 09:28:39
楼主