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本帖最后由 476966986 于 2011-11-11 11:18 编辑 : P( W. F# V8 J5 F4 J# H
. C3 ], m' I' P* M(defun c:62-12()
$ l d$ D7 R, L0 A (setq cen (getpoint "\n请输入中心点的位置"))
# I! K3 q& x* A" k4 u(setq rr1 (getdist cen "\n大圆半径: "))0 X! L7 g' q0 ~1 N8 H* k- M
(setq rr2 (getdist cen "\n小圆半径: "))/ X" C/ A% _: m4 ^+ Y, X+ n7 l
(setq nn (getint "\n重复几次 <8>: "))& u: U/ N! r8 Q) L
(if (null nn) (setq nn 8)) L }2 j! T$ [
(setq p4 (polar cen 0 rr1))
5 V3 q7 c9 o3 J6 I- `0 d+ H# ] (setq ang (/ pi 0.5 nn))
* ^/ | ~9 p. l7 b# k) F (setq rr3 (/ rr2 2))
- G* s8 C! o8 O$ m, A# o0 w& x7 z* z/ r (setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
# i4 F% R: c3 ]9 U, I (setq ang1 (* 2 (atan (/ rr3 hh))))
; ^6 P9 s7 ?' O1 c4 k+ W { (setq p1 (polar cen -ang1 rr1))/ H+ E, e. K5 y
(setq p2 (polar cen ang1 rr1))0 ~( E; Z5 @( z$ l8 n" C1 \! Z
(setq p3 (polar cen (- ang ang1) rr1))
2 g9 G9 V! N$ \/ F5 l# K m% B* r/ z (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
_) U) o, R2 y. n& z (command "array" (entlast) "" "p" cen nn 360 "y")
) @" O8 b$ q2 S: i* O. }+ L3 b (prin1)) x5 b* W3 ~! a2 G
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发表于 2011-11-11 11:00:55
楼主