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回复 6# oぃ夢ゞ舞風雲ヤ
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- e5 h0 H+ I7 U/ q' F% }; g' u 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:3 h# B( x" p) A' b
(defun c:MJ ( / ENT ES I OBJ P0 S SS)
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(command "vscurrent" "C")0 v; K6 q, m/ I; t- m
(princ "\n ****本程序为求多个封闭区域的面积之和****")7 s, T5 @9 D$ }
(setq ss (ssadd))5 x8 p e& U3 j7 X) y3 q
(while (setq p0 (getpoint"\n拾封闭区域取内部点:<退出>"))
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(ssadd (entlast) ss)
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(setq i 0 ES 0) z0 A% c3 T1 [1 q: }* ?. y X
(repeat (sslength ss)$ B$ `% x1 ]& A1 e; h
(setq ent (ssname ss i))# f8 l/ _2 U: F1 P8 {
(setq obj (vlax-ename->vla-object ent))/ a+ R+ x& p' p! }2 t6 T
(setq s (vla-get-Area obj))
& Q" X6 L) y0 j3 @+ z+ m0 U (setq es (+ es s))
9 K: Q, P$ ?: A (setq i (1+ i)); \5 r- H- Z' k4 j8 K/ v
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(command "erase" (ssget "X" '((0 . "REGION"))) "")+ P1 a) L# l. n, L( m5 P
(command "vscurrent" "2")
' a, D! `& N' m. R! ]( X (princ (strcat "总面积为:" (rtos es)))
/ n8 L# N; T% m4 ]& F (princ)
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