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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。
5 E m0 ]9 j# U2 S. H3 [) U加载程序，在命令行运行am, o, l1 S+ d9 Q9 {$ @* T
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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。# V r" Y7 u. b" g7 T9 @5 Z, T
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- e. R- ^* A( R: O(defun C:am (/ ss l i totalarea ename obj entarea)
- d9 R3 w& m/ g0 |. `$ w! T (if (setq ss (ssget))
- {1 D! h' K& }. [, P (progn
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(setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))4 Y# ?" c. Q3 r/ j6 P) ?
(setq l (sslength ss) i 0 totalarea 0 totlength 0)7 N5 Q! S$ k4 j" n# u: m# c
(repeat l
; K; i' E* C6 L( ^# J0 t (setq ename (ssname ss i)); Q# r2 h: M" ?) d5 k) N: r
(setq obj (vlax-ename->vla-object ename)) n/ Y9 M* L* D$ c! H% p
;;(vlax-dump-object obj T)' O- {7 v5 E) p2 Q9 `
(if (vlax-property-available-p obj "area")4 `! A' r( B8 M2 ^+ Y7 L6 _
(setq totalarea (+ (vlax-get-property obj 'area) totalarea))
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5 q3 k' a- P7 x: W# `4 Y% B' H: } (if (= (cdr (assoc 0 (entget ename))) "MLINE")5 T& Q$ z* }& K; F
(setq totlength (+ totlength (ml-length ename)))+ F" ^0 r8 M7 n# D E, A( {5 I# ]
(setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))- q* i, C3 W% N1 `6 g
)
. M6 d: Z% m& R3 I( A% l% n8 V (setq i (1+ i))
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9 V3 w; j% j6 g5 c( `" |5 `# z (setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")& v2 q% B# p n7 p; [$ V
text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")
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* L, R2 A. f4 H9 } {+ b1 i' g (if (setq insertpt (getpoint "\n请输入文字插入点: "))# U! }; q. l- V4 c0 N; N( A; N: T
(if (setq height (getdist "\n请输入文字高度:"))# V+ i# E# u! c+ b2 t
(setq insertp1 (vlax-3d-point insertpt)3 s& L; L/ [) H; l
insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))
! A6 l! u1 J& r7 V4 ` textobj1 (vla-addtext modelspace text1 insertp1 height)
$ X* v, h" h' U* F textobj2 (vla-addtext modelspace text2 insertp2 height)
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)
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)
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. p8 v. G* f. `9 U6 _(defun ml-length (ename / j d ptlist)
* z9 @/ u- f+ i. ?3 L8 P. e (foreach n (entget ename)
+ o# j1 f0 i6 L7 a- c7 _ (if (= (car n) 11)0 `, o2 U8 P0 S2 q+ I9 f3 W- n
(setq ptlist (cons (cdr n) ptlist))
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)1 \% `, J& Z9 P# L+ |& \
(reverse ptlist)
$ v }$ O5 A9 R) Q (setq j 0 d 0)% M7 a6 ]5 x' J6 e
(repeat (1- (length ptlist))
" k7 Q9 r( B8 e/ D! q6 l1 ` (setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))
! Z$ s7 B$ R) H (setq j (1+ j)) Y' V: _' k) u) E$ u
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发表于 2008-2-1 17:04:33
发表于 2008-2-2 09:28:39
楼主