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回复 6# oぃ夢ゞ舞風雲ヤ
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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:: k- Q) g/ K7 B( ^+ e' W& ]
(defun c:MJ ( / ENT ES I OBJ P0 S SS)+ b3 a; a: y; f% P s8 v
(vl-load-com)
) ^9 w% r- ~4 p+ P4 t7 F& r" a (command "vscurrent" "C")" v7 x4 D9 \1 y) T g; k
(princ "\n ****本程序为求多个封闭区域的面积之和****")* Z- z2 O* w# O+ M
(setq ss (ssadd))0 I0 Z: i ?8 p; ?" r! A3 Q
(while (setq p0 (getpoint"\n拾封闭区域取内部点:<退出>"))" g& w4 V3 r, [* [: l6 P/ B
(COMMAND "._BOUNDARY" "A" "O" "R" "" p0 ""), f( k" y4 {9 w( A: \
(ssadd (entlast) ss)0 v- a8 j$ V1 d% [9 o$ K" H
)
# H! f+ U1 x0 B2 C, Q+ x (setq i 0 ES 0)" Q; a8 w# {/ _. Q, H0 O* S
(repeat (sslength ss)
2 W* m" d' A1 z: p7 c! \7 m (setq ent (ssname ss i))( l& R# V- r/ S# k
(setq obj (vlax-ename->vla-object ent))6 Y2 O( F/ n/ ?9 m% m: d# F8 y
(setq s (vla-get-Area obj))& c3 W1 p3 @. i
(setq es (+ es s))5 f0 ~( B5 Y9 N' ?% t: {8 L+ |
(setq i (1+ i))
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(command "erase" (ssget "X" '((0 . "REGION"))) "")
; a- V4 l) n+ o" p5 ~( v& ? (command "vscurrent" "2")
& U( N# z# c% t" z) T7 B* ? (princ (strcat "总面积为:" (rtos es)))
! A: ?# @. `4 ^ J$ q (princ)
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