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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。, G7 J8 d7 T& C( m
加载程序，在命令行运行am( \5 o* g% N4 [6 n
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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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% ^) b( H2 g# |2 E3 f指定位置和高度，就可以用文字标注出来。
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9 S2 Q' B: C+ G, S8 ?; i; V0 f(defun C:am (/ ss l i totalarea ename obj entarea)
- f$ A8 m- W5 l' { (if (setq ss (ssget))% r* |( T' X) ]+ b2 y
(progn9 n+ R, e! v; b7 G% Y1 o$ m
(vl-load-com)& C5 r" B. Q/ n6 U. i# C
(setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))
' u! _5 X z/ p* b# z2 M' h (setq l (sslength ss) i 0 totalarea 0 totlength 0)
4 e Y' H, z) P3 O! o) ^/ f (repeat l
( r& O M# Y% B9 u- W7 p4 @ (setq ename (ssname ss i)): N1 X2 A, r6 N4 }( X
(setq obj (vlax-ename->vla-object ename))
$ T! ]$ J6 p/ Q1 l ;;(vlax-dump-object obj T)
% t. k; r- M; D (if (vlax-property-available-p obj "area")$ y% U# ]" ?5 I9 U3 a6 \
(setq totalarea (+ (vlax-get-property obj 'area) totalarea))
# m9 G7 I* _: T+ m )( [% ]3 G+ I& f7 [4 G/ T( S J
(if (= (cdr (assoc 0 (entget ename))) "MLINE")
& u4 {6 d6 T8 f3 {# g0 x (setq totlength (+ totlength (ml-length ename)))
8 A9 L/ {& }! E! |6 A0 _ (setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))
$ p% T m% \% z# U E2 f" ~+ p V! d. t m )& [+ L {1 D! h3 ]/ g+ ^
(setq i (1+ i)). ^- c! Z. k0 L
)
) y$ C6 U4 F3 x1 W s8 ]2 b (setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")
) t# X" P5 W& ~& v! s5 b' `* U text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")
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% Y7 T6 C" z) j( s- q1 P (if (setq insertpt (getpoint "\n请输入文字插入点: "))
( z( F. X0 j* c# a (if (setq height (getdist "\n请输入文字高度:"))0 E: b+ c: M" M) k
(setq insertp1 (vlax-3d-point insertpt)
# f3 D! E5 e4 x insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))9 g6 s y/ c h9 ?$ I& x0 _
textobj1 (vla-addtext modelspace text1 insertp1 height)
- B# K3 M" T3 r1 [9 L5 h textobj2 (vla-addtext modelspace text2 insertp2 height). X/ j* h3 F. o' R- l" a
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)
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(defun ml-length (ename / j d ptlist)! q5 T `/ O7 \0 k
(foreach n (entget ename)
" B5 L% M% I8 G% ] j. t (if (= (car n) 11)
% c2 a: i1 {0 ~2 L( V3 P7 c. ? (setq ptlist (cons (cdr n) ptlist))" j& N. K( l4 [0 a& V, v' b/ o2 k
)
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(reverse ptlist)
( R2 r: a+ q, @% i+ `" { (setq j 0 d 0)
, M0 N9 A- J1 o5 Z, l8 L( u/ J (repeat (1- (length ptlist))
- V, t0 B- A1 I9 d (setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))
2 m$ p @! N) p0 O1 |. B (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