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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。! t* H* f$ z' V
加载程序，在命令行运行am
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7 r! a& I1 E2 u; b1 ^! B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。- h b f! i/ s" [- o6 b
+ ^4 p% @7 H) v5 ?: u2 R/ G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)
7 I% t$ M* w- t& `: ~. b! m (if (setq ss (ssget)); q/ L* ^- e8 Z K) m4 t: w
(progn
: r# x+ @* ^7 _% Z (vl-load-com)1 e' ^, z, L6 q% N
(setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))
$ T T9 b9 r& L: D2 I" Y; n (setq l (sslength ss) i 0 totalarea 0 totlength 0)
5 p6 X6 v2 A, l (repeat l
; h* x+ d5 J, I7 C (setq ename (ssname ss i))
: L# n. w) K8 N, ^ (setq obj (vlax-ename->vla-object ename))
/ ]7 z; j7 Z4 V5 w+ I ;;(vlax-dump-object obj T)
) I4 b3 m1 K6 \* T, l; A (if (vlax-property-available-p obj "area")' g" s) q/ }. m4 M2 b5 _1 w
(setq totalarea (+ (vlax-get-property obj 'area) totalarea))
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( G! R2 u/ V& ?% w$ Z7 g( C (if (= (cdr (assoc 0 (entget ename))) "MLINE")6 Y% N- ^2 I6 M6 z" K' e8 ]
(setq totlength (+ totlength (ml-length ename)))$ J4 [7 i" q: s+ Y- [! R
(setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))
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(setq i (1+ i))
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(setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")
" j8 @. _+ @. ~* ? text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")
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1 z7 W9 {7 C6 o. |$ Z (if (setq insertpt (getpoint "\n请输入文字插入点: "))
( T8 S; G3 _# r) I (if (setq height (getdist "\n请输入文字高度:"))
, F+ i6 t+ H4 G- V' ^$ x (setq insertp1 (vlax-3d-point insertpt)* [7 g# i# V; `% @
insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))
/ ?& p: w/ E' K" Q: \4 Q" i textobj1 (vla-addtext modelspace text1 insertp1 height)
* c0 G1 |: ]# g2 d9 |$ O8 v, r$ z textobj2 (vla-addtext modelspace text2 insertp2 height)% y& H- U& c* W8 A% u
)
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)
# E' o8 D4 X1 Y$ U- m0 w)
& J% z' U9 J. a4 g(defun ml-length (ename / j d ptlist)
1 O7 m8 T8 Y5 s% n. } (foreach n (entget ename)
! @9 X/ k' W+ a: T; |3 f (if (= (car n) 11)
) ^. G j/ J$ Y% j0 D& f' A* i (setq ptlist (cons (cdr n) ptlist))
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(reverse ptlist)4 O) @% p( S9 A7 I
(setq j 0 d 0)5 v8 Y5 y# c- C
(repeat (1- (length ptlist))6 [6 j, I: X7 |
(setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))
9 K p- T7 t" h! P (setq j (1+ j))1 ?7 C" s5 |% D0 ] ^# P$ 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