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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 c0 X" I: R' h* ~! ]0 F: }, u加载程序，在命令行运行am
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, m' J, J5 N0 f c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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4 I1 E9 o/ ]8 [, b指定位置和高度，就可以用文字标注出来。9 e5 y& X: c6 {9 s; q6 I7 k
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(defun C:am (/ ss l i totalarea ename obj entarea)* ~( s1 g# r% V: d* r8 ^
(if (setq ss (ssget))
- ?5 t: h3 | N0 J* { (progn
( k! X, X# \& e7 G0 D' m (vl-load-com)
3 `* _! Y2 y1 U- H" ?6 u (setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object)))) d/ W2 \& v$ b
(setq l (sslength ss) i 0 totalarea 0 totlength 0)
7 u2 w5 i6 {/ l7 L (repeat l
& I* d" N2 E. f4 [1 t. F! ?/ k% u n) d (setq ename (ssname ss i))
7 z$ g- _2 \/ F1 |) J (setq obj (vlax-ename->vla-object ename))
# C) [5 [4 w, g; w4 o- W ;;(vlax-dump-object obj T)9 n, q8 D# ?7 n/ O7 T" b; ^
(if (vlax-property-available-p obj "area")
( i6 ^8 e. R0 L0 o/ i (setq totalarea (+ (vlax-get-property obj 'area) totalarea))
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(if (= (cdr (assoc 0 (entget ename))) "MLINE")* w1 m) X H& b( [
(setq totlength (+ totlength (ml-length ename)))' {7 V8 F: K' x, t# n
(setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))
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(setq i (1+ i))7 R5 Y, |, V! W. B! n7 S$ Z7 v
)
$ Y& U8 W8 L7 K* k (setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")+ f; W b z+ `
text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")# g0 C/ c, W' V6 m( a- {% Y9 H
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(if (setq insertpt (getpoint "\n请输入文字插入点: "))
& Q& h2 m9 A3 Q, [3 s4 z4 l; a (if (setq height (getdist "\n请输入文字高度:"))# ]* e1 W% H0 d+ X
(setq insertp1 (vlax-3d-point insertpt)4 @) b P$ R1 `- ?: N/ A9 b% G1 v
insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))
- R& ?8 T! F! T) }4 e% i* X textobj1 (vla-addtext modelspace text1 insertp1 height)
3 v+ z- o2 q! x/ F textobj2 (vla-addtext modelspace text2 insertp2 height)
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)
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(defun ml-length (ename / j d ptlist)6 [2 L) n- Q3 V6 G
(foreach n (entget ename)
0 d" }& w- p' K' f A, A5 T8 m (if (= (car n) 11)7 r' ^6 D8 v$ m: o, i
(setq ptlist (cons (cdr n) ptlist))% I7 f; O5 V3 y: V
)
( C: X1 F! R7 V% ?* w; _ )
& O% N9 C3 m3 Y$ v9 y9 q (reverse ptlist)
% w5 X% t% t& o) w: r6 R7 Z (setq j 0 d 0)9 C ?$ T+ O) o; J
(repeat (1- (length ptlist))" U+ `7 u9 [0 R- ~' Q. s
(setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))# C6 \1 h u9 r$ o u% z- \
(setq j (1+ j))
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d# j, R5 g% @1 D! C, A
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发表于 2008-2-1 17:04:33
发表于 2008-2-2 09:28:39
楼主