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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:/ j% C' B& @* p$ j
(defun c:MJ ( / ENT ES I OBJ P0 S SS)1 i8 }% h2 I- T8 U1 F k$ O D N
(vl-load-com)' {* P x! B1 j9 u6 I& w+ p# q
(command "vscurrent" "C")( o7 _9 f+ G. E1 ]: r' h; m$ s5 Z( a
(princ "\n ****本程序为求多个封闭区域的面积之和****")
: t0 K2 F. O) @) l- } (setq ss (ssadd))
: J1 f7 q; d h" ^6 o$ R/ ] (while (setq p0 (getpoint"\n拾封闭区域取内部点:<退出>"))
4 g% R1 f7 ^* H1 |+ Z) n* g9 r, {! v (COMMAND "._BOUNDARY" "A" "O" "R" "" p0 "")6 ]) w7 n9 E6 c; ^3 a
(ssadd (entlast) ss)! b2 K' X, m, e& W& L- B
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(setq i 0 ES 0)
8 t' g) N ^; H1 ? (repeat (sslength ss)1 l, }6 D8 j- Q1 i3 u# v; y
(setq ent (ssname ss i))1 T* d0 S$ q; V1 D- g' x
(setq obj (vlax-ename->vla-object ent)). v S* N, M: t9 g7 r% P ?* s
(setq s (vla-get-Area obj))1 E4 Q! n. {: f0 `% p W4 {
(setq es (+ es s))9 U V/ a; y: s8 x. A8 m8 k0 ]
(setq i (1+ i))
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0 j. z. U) O: \! o4 s (command "erase" (ssget "X" '((0 . "REGION"))) "")! {/ M" D; X' F9 y' ?/ {
(command "vscurrent" "2")
7 }6 k0 C' J8 F; q4 }* C (princ (strcat "总面积为:" (rtos es)))
1 O! J* X& f$ q M4 V3 Z6 j (princ)
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