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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:
% ^& S- E$ I5 }2 a2 O' u(defun c:MJ ( / ENT ES I OBJ P0 S SS)& A8 D* \6 X3 Z" d6 O
(vl-load-com): X; j+ i/ t$ E
(command "vscurrent" "C")
: G1 d& c! p1 n4 U8 t- g+ B (princ "\n ****本程序为求多个封闭区域的面积之和****")
@( s' y0 V5 b8 p (setq ss (ssadd))
2 P+ _9 V. t( j; P0 w7 N (while (setq p0 (getpoint"\n拾封闭区域取内部点:<退出>"))/ {8 W. N5 W" t
(COMMAND "._BOUNDARY" "A" "O" "R" "" p0 "")0 T5 { K, A. F+ ~, ~7 U; K. z$ Z
(ssadd (entlast) ss)
4 k; s# ?* M8 q5 f+ r! e )
- P0 l! T( m0 V" t0 i, t (setq i 0 ES 0)7 L0 q+ L# ]7 O/ ~) O+ \0 Z7 p, o
(repeat (sslength ss)
5 ]* C, l) y! x8 c/ I* _ (setq ent (ssname ss i))
! W5 }2 C5 e, R5 a3 o6 J* w# { (setq obj (vlax-ename->vla-object ent))
7 I6 ~! `* l4 i4 ~! K: ? (setq s (vla-get-Area obj))
( o+ h: {3 T* N! U( r/ L/ I (setq es (+ es s))# W# z+ |- D; @% P2 E0 J
(setq i (1+ i))
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' J1 |5 a" |) H% T# G (command "erase" (ssget "X" '((0 . "REGION"))) "")
* q8 n3 _$ x' w (command "vscurrent" "2")
+ ~$ r' F+ R& z3 x (princ (strcat "总面积为:" (rtos es)))
0 s' }2 E1 P% A* t* ~ (princ)
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