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本帖最后由 476966986 于 2011-11-11 11:18 编辑 ! T U* G% A. x. v: u( |5 N
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(defun c:62-12()! v H% \6 S4 Y6 B" {% A
(setq cen (getpoint "\n请输入中心点的位置"))
/ P$ K: m0 N! n3 B _(setq rr1 (getdist cen "\n大圆半径: "))
9 f/ ]$ H+ c2 l, S2 t" `(setq rr2 (getdist cen "\n小圆半径: "))- i! d: x- V3 L' _0 _% S
(setq nn (getint "\n重复几次 <8>: "))4 Y0 A4 L4 {' ^( C' k+ b
(if (null nn) (setq nn 8))6 m2 k$ j4 s3 `% E$ Z
(setq p4 (polar cen 0 rr1))+ v: i3 e9 p! G b
(setq ang (/ pi 0.5 nn)) m/ x; g( @; d% a4 p: u& t) S' m
(setq rr3 (/ rr2 2))
0 A; C a% Q( X. f* G1 h* @& c* h (setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
6 X! p6 l4 p, v5 |. H) j" M (setq ang1 (* 2 (atan (/ rr3 hh))))2 `+ S! b* @ V+ k' @
(setq p1 (polar cen -ang1 rr1))
4 |; U, v2 s) \. { d) ` T (setq p2 (polar cen ang1 rr1))
" w' \2 D0 O* @6 Q7 P+ L (setq p3 (polar cen (- ang ang1) rr1))
+ l6 \. h G8 t" C: } (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
! @; U6 |3 ?7 c% z( e (command "array" (entlast) "" "p" cen nn 360 "y")8 {/ q. P5 p( y) g) h& }
(prin1)
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发表于 2011-11-11 11:00:55
楼主