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给你一个人家写的,放到cad安装目录下加载后可用,命令为bj7 h9 ~2 ^0 }( H& w- T& H
;;可改圆的半径或比例缩放
% {: f7 T8 |' B$ g+ M(defun C:bj (/ SSET SC SC1 SSLEN NT)
% n& @+ p" e8 Z$ l(while (= SSET NIL)7 a1 }5 R- N) C$ Z& Z, L1 X$ `9 l
(prompt "\n选择要修改的圆:")
6 V# c1 t! x* ~(setq SSET (ssget '((0 . "CIRCLE"))))
o; `' X3 D" L' \/ d0 |* w)% f5 m9 o. Y3 ~' ?: a3 h7 g d
(setq SC (getstring "\n输入半径(R)/<缩放比例>: ")) x7 g! ]' R7 y
(if (= SC "")
+ T8 k7 o+ n+ l+ F(setq SC (getreal "\n缩放比例: "))& {: X$ i S8 h' M7 y1 W6 V) @
(setq SC1 (getreal "\n输入半径: "))
' J9 a7 A+ o& U$ U0 B% z5 e% h, k)
5 {- h5 {; @3 c. u) C+ k3 F8 L, a(setq SSLEN (sslength SSET))
% m" U! e3 }, S- b4 r! M(while (> SSLEN 0)
8 t9 P# X0 }$ k' _- |) c! U$ j(setq ENT (entget (ssname SSET (setq SSLEN (1- SSLEN)))))- a0 B& Z4 k" f& F3 v2 p5 d+ W
(if (= SC1 NIL)
+ r9 N0 Z: L! G- \- y/ Z# K( o(setq NT (* SC (cdr (assoc 40 ENT))))
+ A! b1 Q; G( _& ?& k: W k7 u(setq NT SC1)
. |0 ?% [( |' b9 L)8 l& M' @# O' o& U
(entmod (subst (cons 40 NT) (assoc 40 ENT) ENT))$ z8 Z p. f0 v4 }, c
)
- j3 W2 D' o# p( |7 L2 e' ^ q(princ)% h: m6 E8 _, I' \2 Z
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