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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。, W1 M% c* u+ e; [" D) o
加载程序，在命令行运行am1 R. Y5 a# K0 Y$ ?' w* `1 I( A
, ~' Y) Z6 U8 J! A+ d. X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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% R+ w/ z+ g4 j3 d指定位置和高度，就可以用文字标注出来。
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' I$ }; r/ S! S1 m. U# ?! r(defun C:am (/ ss l i totalarea ename obj entarea)
4 {$ D1 J& Q# Q (if (setq ss (ssget))7 B) Q" Y7 B1 g& \; N
(progn
8 z1 I( N. N) h. U) F* B (vl-load-com), k2 }8 |7 V/ O3 @
(setq modelspace (vla-get-Modelspace (vla-get-activeDocument (vlax-get-acad-object))))
: E, { }& G( q" Q- B (setq l (sslength ss) i 0 totalarea 0 totlength 0)4 }& k2 q9 V+ V3 o
(repeat l- {, @. b* z4 p/ V/ _4 t( z
(setq ename (ssname ss i)) _' D- F* m5 k! k& V
(setq obj (vlax-ename->vla-object ename))
/ p$ C3 L M4 I3 {7 K8 a. x ;;(vlax-dump-object obj T)
$ W) d' s: A3 V1 h0 V& n (if (vlax-property-available-p obj "area")$ F/ S% F( b9 h4 s. H0 r
(setq totalarea (+ (vlax-get-property obj 'area) totalarea))
0 n+ r) M' Q5 M) |0 ]9 k6 X% B4 D5 r )5 A2 C% n& X0 n. X" g
(if (= (cdr (assoc 0 (entget ename))) "MLINE")
7 l9 x+ u; [+ U/ P& ~) ?1 H (setq totlength (+ totlength (ml-length ename)))' [% u0 Z/ ~3 L
(setq totlength (+ totlength (vlax-curve-getdistatparam ename (vlax-curve-getendparam ename))))
! k! g0 K# f# I1 d/ y& _9 [: G0 r0 t )
3 U0 C; k2 {& _! S (setq i (1+ i))
0 P; `; j* i9 D, v d; r1 { )
6 J+ o4 {$ @, J3 q (setq text1 (strcat "总面积为: " (rtos totalarea 2 4) "平方毫米")
; ]7 p3 a: {2 |+ e* ^1 V- T text2 (strcat "总长度为: " (rtos totlength 2 4) "毫米")! r! }& c" i4 W, K- v+ D
)
# L( p9 o# x' U0 c0 P3 e (if (setq insertpt (getpoint "\n请输入文字插入点: "))8 Y3 F o% D% c
(if (setq height (getdist "\n请输入文字高度:"))
5 K# B7 p2 d: V8 c% H0 n8 H2 x (setq insertp1 (vlax-3d-point insertpt)* f* U# N. U% {* A1 }% v7 A: t
insertp2 (vlax-3d-point (polar insertpt (* 1.5 Pi) (* 1.5 height)))
3 ^. N/ L$ w) g" M textobj1 (vla-addtext modelspace text1 insertp1 height)
* T& } H8 ^+ i! A/ V. D" O textobj2 (vla-addtext modelspace text2 insertp2 height)# b* P# G$ _+ R7 q. Z% Z- w
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)
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)3 ?) A/ W) ]/ h% N. g8 g( z0 v
(defun ml-length (ename / j d ptlist)
o2 p! K; @7 N' H: d (foreach n (entget ename)# K6 A" u: ?& p# x7 D
(if (= (car n) 11)% {( ]! E# Q. f! \7 t% h8 M# g
(setq ptlist (cons (cdr n) ptlist))
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(reverse ptlist)
* `, P& ]& @! e; T; K0 `0 y (setq j 0 d 0)
/ Y9 E8 p } [2 y" a5 R9 K% a (repeat (1- (length ptlist))
) n' |! V. k+ c2 \. Z+ R% F (setq d (+ d (distance (nth j ptlist) (nth (1+ j) ptlist))))
3 r$ {+ O: f$ O& Y# D I0 G2 L8 m (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