|
回复 6# oぃ夢ゞ舞風雲ヤ $ o9 v1 U4 n- O- k
" l1 }+ D7 S: c8 g- @2 Y. M
# F' v# W" d2 }% a7 n 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:
& D& G$ E. r, {% ]3 k$ r# @(defun c:MJ ( / ENT ES I OBJ P0 S SS)9 h5 v" w: L. c/ N4 d1 l& i* Y
(vl-load-com)
' C$ u( \7 e7 v& H" i' Y- |; P$ c (command "vscurrent" "C")+ [$ T9 {# T9 ^( ?8 n! A; n
(princ "\n ****本程序为求多个封闭区域的面积之和****")
( f, s. S7 i: \% z: }% ~ (setq ss (ssadd))/ {2 B& O$ ~( M1 b L
(while (setq p0 (getpoint"\n拾封闭区域取内部点:<退出>"))
; B* a/ ^3 u6 p+ S' k' ] (COMMAND "._BOUNDARY" "A" "O" "R" "" p0 "")
! l- s6 w$ [ y/ [( Q (ssadd (entlast) ss)
/ Y2 i2 M* W" }# f+ x k )
8 T0 o! y" l/ S1 F; @' ^! b, a! H (setq i 0 ES 0)* g$ {6 X3 g. g+ w# _
(repeat (sslength ss)
/ y9 s/ N9 t/ k; U0 D9 U (setq ent (ssname ss i))( \ v1 F: a4 ^' K5 m
(setq obj (vlax-ename->vla-object ent))
) W9 h0 }5 f- l1 D/ D. i* M; ? (setq s (vla-get-Area obj))
5 @* C3 J$ z% O5 [1 |5 k3 O/ {, ] (setq es (+ es s))
2 Y6 v8 P1 }- c$ \1 Y! k4 g, _ (setq i (1+ i))
g1 z7 v+ f) T T. `% z% |2 a$ ]0 W )# r v, x8 ]2 p+ }2 p
(command "erase" (ssget "X" '((0 . "REGION"))) "")
; a* Y& Y8 U2 l' l (command "vscurrent" "2")
: z& S4 c0 Q8 B& E+ f* c& u4 L1 o. b. ^ (princ (strcat "总面积为:" (rtos es))) ' H `5 X: H' x" s. G& G
(princ)
5 @/ t& Q2 d& Z9 K7 }/ B) |
|