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本帖最后由 476966986 于 2011-11-11 11:18 编辑 7 w( }3 g4 Z4 u, g% ?
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(defun c:62-12()9 _) }' I& B; a$ W; M- G
(setq cen (getpoint "\n请输入中心点的位置"))
' T) k- f) d/ O) U+ ^4 Y- M(setq rr1 (getdist cen "\n大圆半径: "))
0 T- E, ^( N- }( F2 C* V: |(setq rr2 (getdist cen "\n小圆半径: "))9 @* ^0 {+ k' A7 @
(setq nn (getint "\n重复几次 <8>: "))% a; }9 n4 Q' s$ ^- a! t6 u
(if (null nn) (setq nn 8))
% _8 Z( y" u* a. u' j (setq p4 (polar cen 0 rr1))
& k) O+ U1 l, A+ |2 Y (setq ang (/ pi 0.5 nn))# X8 o% F$ ?+ D3 x8 r S
(setq rr3 (/ rr2 2))+ N) g; O5 A) d2 v) y* A4 V
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
- c" I* i8 t) W B0 P5 T+ Y% L (setq ang1 (* 2 (atan (/ rr3 hh))))( x& _5 c( q$ q8 U9 b0 E
(setq p1 (polar cen -ang1 rr1))
+ d1 w+ r5 A6 Q( b6 p: `- A4 p (setq p2 (polar cen ang1 rr1))
$ o/ H1 b! @& U; }7 f* k (setq p3 (polar cen (- ang ang1) rr1)): B1 m2 X" a. G" E
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
5 F+ E5 E, A2 b4 y* y/ I (command "array" (entlast) "" "p" cen nn 360 "y")9 j/ x/ P: t! {$ H# N+ H3 p5 o
(prin1)
0 |* U7 _- R6 _7 V/ e" ~ ) |
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发表于 2011-11-11 11:00:55
楼主