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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。3 I( Y$ s: s+ W; f( s2 b8 s+ q* b
加载程序，在命令行运行am- @9 A2 A2 p6 Z5 g
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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。% u+ o P3 @2 i3 a s4 O% F
c% ^+ U& R" M! x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)
& G: e0 J( ^! H- [( z4 b (if (setq ss (ssget))
" q s- K2 C- C* \2 F6 ^5 a5 o (progn$ j; q; N! z" P v
(vl-load-com), b& Z+ n" l- O0 ]0 x1 U
(setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object)))) y7 b0 ]4 e. b* o
(setq l (sslength ss) i 0 totalarea 0 totlength 0)
' }; n3 ^; A3 s8 o5 N5 o- F (repeat l
0 O% t: Y9 h2 x" }1 E5 e (setq ename (ssname ss i))" k; s4 {) r% {2 t% p
(setq obj (vlax-ename->vla-object ename))% |6 w) @1 f Q7 Y
;;(vlax-dump-object obj T)
5 ?- X, f* B3 \" D% T (if (vlax-property-available-p obj "area")
0 @. l, |+ ^) T (setq totalarea (+ (vlax-get-property obj 'area) totalarea))$ S0 e: c e1 V, [2 ~; g
)
3 @( U" S2 h% m9 k! B' y W2 r7 \ (if (= (cdr (assoc 0 (entget ename))) "MLINE"): p7 H, g; l. }% t& I: V) }
(setq totlength (+ totlength (ml-length ename)))
& o: Q' m8 W+ D; o* H (setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))7 U0 ?3 x! y7 B; t( S8 C3 T
)
- t8 e% H1 [. T3 o9 G y% D (setq i (1+ i))
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(setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")7 o0 A; p' V+ n+ r: v) i
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: "))* P- F7 T7 {& d$ R/ m
(if (setq height (getdist "\n请输入文字高度:"))
' G8 y: h9 N/ E$ L+ [- ` (setq insertp1 (vlax-3d-point insertpt)
9 M4 I$ l0 b9 K; ^6 k! a+ Z; p insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))
; z7 e4 U. X- \8 S# f$ B2 P2 V7 ^ textobj1 (vla-addtext modelspace text1 insertp1 height)
" ?5 p- Y3 y7 g3 Z4 A+ [% n' q6 X; `; l textobj2 (vla-addtext modelspace text2 insertp2 height) A Z% q# ?4 G: V
)
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)
]0 Y0 e, C) p) i" S8 w(defun ml-length (ename / j d ptlist)
6 J) ^( d7 _- c4 D" n (foreach n (entget ename)9 v% X F; A* f% S# O
(if (= (car n) 11)) G" p9 n# Z* v$ L+ G
(setq ptlist (cons (cdr n) ptlist))
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(reverse ptlist)
. e( f% b, I F9 {; a (setq j 0 d 0)
/ }" h- o2 N9 v7 O (repeat (1- (length ptlist))
+ M) [# L: q$ H6 U" Y4 k/ y (setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))
$ M& e+ V* a3 w0 e! A6 ~$ o (setq j (1+ j))% Q$ |" c, w# f( o, |: x8 {5 z
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发表于 2008-2-1 17:04:33
发表于 2008-2-2 09:28:39
楼主