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回复 6# oぃ夢ゞ舞風雲ヤ ( S3 z! s! W3 @8 O& x
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现编一个,你只要左键依次点选封闭区域内部点后回车就出结果了:
- S9 E1 k8 u% A, a(defun c:MJ ( / ENT ES I OBJ P0 S SS)% a* D8 ?1 p& _
(vl-load-com)
! b1 x, D( L* N% Q. w+ z (command "vscurrent" "C")
- ]6 z' ^$ [. {# t3 [ (princ "\n ****本程序为求多个封闭区域的面积之和****")( t& x2 k: F7 \$ \2 C! W4 e
(setq ss (ssadd))
( c/ U) D; n4 U; L6 y (while (setq p0 (getpoint"\n拾封闭区域取内部点:<退出>"))5 z2 S& Q# E- `: _1 z( Y
(COMMAND "._BOUNDARY" "A" "O" "R" "" p0 "")
8 Z" f" N3 C' J; d5 p (ssadd (entlast) ss)( X4 ~# o2 }0 Y7 W* V' s* C
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(setq i 0 ES 0)
9 i- V" I& C. ^' [5 _ (repeat (sslength ss)
9 e* P. R+ U* X& I (setq ent (ssname ss i))
$ R! \7 T7 A7 ? (setq obj (vlax-ename->vla-object ent))( n$ H$ D5 H5 h& U& p% K6 L
(setq s (vla-get-Area obj)). |$ r$ H) W/ n& o0 h9 U/ p, k
(setq es (+ es s))
) W: f# v m/ @1 t- I( D! _/ l (setq i (1+ i))) E: \* k$ R6 `8 Z0 t& C" ?: V
)
1 C7 G' {) g5 I/ W# C (command "erase" (ssget "X" '((0 . "REGION"))) "")
! s2 S9 ^) o' F) B (command "vscurrent" "2")
% H f o' j! H (princ (strcat "总面积为:" (rtos es))) 6 Y3 j' C% K& _6 V/ A2 E- [ U
(princ)
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