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本帖最后由 476966986 于 2011-11-11 11:18 编辑
$ |- S6 N; u9 H L" s8 B: X: k) e% u5 [/ D. c( A
(defun c:62-12()4 ^$ O( ? }& l& ~9 Y5 ]
(setq cen (getpoint "\n请输入中心点的位置")) 1 R7 z% O+ j) ~ W
(setq rr1 (getdist cen "\n大圆半径: ")); A+ Q3 w5 k$ l# K
(setq rr2 (getdist cen "\n小圆半径: "))
% U! W6 x7 i; {/ [9 E7 \(setq nn (getint "\n重复几次 <8>: "))
( ]) X& e0 v1 u* }: Y/ C$ p1 I(if (null nn) (setq nn 8))
$ f; D% L( q3 N3 c6 |& y# i5 ^, D (setq p4 (polar cen 0 rr1))
5 ?- y: u, X1 }6 [3 b3 X (setq ang (/ pi 0.5 nn))/ X. n) }% O: N2 q) ^/ L1 {" e
(setq rr3 (/ rr2 2))4 {/ N* Z7 c, V" v
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
4 C! g* C* q7 T1 _ (setq ang1 (* 2 (atan (/ rr3 hh)))); P) x4 O2 K, e7 n7 T
(setq p1 (polar cen -ang1 rr1))
# f( }, b( n; d" t+ s2 E. r (setq p2 (polar cen ang1 rr1))% Q) ]7 r7 i& O
(setq p3 (polar cen (- ang ang1) rr1))5 d, H; E3 w# r# d( [3 r' o8 d( J) d
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")8 t# V* E/ T- c5 ?6 W
(command "array" (entlast) "" "p" cen nn 360 "y") D2 `0 c$ t' C6 N: `( p1 k
(prin1); Y/ O! P; x" ]" ]6 A
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发表于 2011-11-11 11:00:55
楼主