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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 a7 N( b2 [1 I( t4 h; u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。
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指定位置和高度，就可以用文字标注出来。( p/ q' D$ @4 a8 c
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, f+ P$ }, W. J# I(defun C:am (/ ss l i totalarea ename obj entarea)
( b( u/ v, G( M! t0 ~ R) L (if (setq ss (ssget))
7 ?1 |: w C. e" T+ W; m& g$ e (progn- B( d: Q5 A) X. `& C
(vl-load-com)
9 x/ T+ N- @, U. D- E9 i+ M (setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))
w0 ^6 {3 y. ?) @+ C (setq l (sslength ss) i 0 totalarea 0 totlength 0)- M, e* x9 {0 C( M
(repeat l
/ g o5 `2 `* L9 s* I& e) v* p (setq ename (ssname ss i))
2 f8 z$ k2 P* P; ~& `4 @! s' p: ~ (setq obj (vlax-ename->vla-object ename))
& f0 v7 t/ n$ d3 G7 L/ Q6 x, H ;;(vlax-dump-object obj T)! D D( h4 h7 K: |9 G. H8 ^. k. T
(if (vlax-property-available-p obj "area")7 ?, d% o+ ]3 X" {+ Z
(setq totalarea (+ (vlax-get-property obj 'area) totalarea))
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(if (= (cdr (assoc 0 (entget ename))) "MLINE")
6 G3 Q# D! Z6 e! O( u7 ^ (setq totlength (+ totlength (ml-length ename)))3 j5 a8 D, H: W& Z9 v2 d
(setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))
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4 Z! _6 v4 q4 I; Q0 `) | (setq i (1+ i))) i; l5 w) {9 j9 c$ c
)
7 |6 h3 A3 p' _, X% l (setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")
4 O _. F6 O, _! C: o text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")
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(if (setq insertpt (getpoint "\n请输入文字插入点: "))# B) \' b' ^4 H* V% t! O
(if (setq height (getdist "\n请输入文字高度:")) t5 y7 X0 J2 L( ^( X0 s. h+ W. n
(setq insertp1 (vlax-3d-point insertpt)# |$ J- \" p! v a
insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))1 v h! p, w2 M1 b7 c- E
textobj1 (vla-addtext modelspace text1 insertp1 height)# u4 B. E: k: Z$ [, r: v( X. h6 {
textobj2 (vla-addtext modelspace text2 insertp2 height)
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)
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)
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(defun ml-length (ename / j d ptlist)
7 S: o( M* l1 I" H5 j6 J (foreach n (entget ename)- _2 [- V2 N+ F: M( ?- b" e
(if (= (car n) 11)
8 f+ B+ a ?* J! A: d, @ e (setq ptlist (cons (cdr n) ptlist))
/ J# u9 R- ^% c" K- l )
8 }% D9 K5 w$ `) k( s0 ~# S! z0 t )
. b! x* w9 i8 j0 `! s M9 M. r (reverse ptlist)
4 A2 y: j* O* \1 s) g: E1 e5 t' j (setq j 0 d 0)- }; p C0 j$ E1 T" m
(repeat (1- (length ptlist))
g! j! n0 X8 p+ h+ [7 I. L (setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))( p& F; H+ I1 ^/ V1 q
(setq j (1+ j))
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d& C5 ]. t) g! ?$ {
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发表于 2008-2-1 17:04:33
发表于 2008-2-2 09:28:39
楼主