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本帖最后由 476966986 于 2011-11-11 11:18 编辑
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(defun c:62-12()) ^$ X% }0 T% a- E+ @
(setq cen (getpoint "\n请输入中心点的位置"))
3 {% G ^" X- k1 h/ S6 d9 M: Q- v(setq rr1 (getdist cen "\n大圆半径: "))6 J; c J- t( Z4 i) r
(setq rr2 (getdist cen "\n小圆半径: "))' r, p2 D+ v3 ~
(setq nn (getint "\n重复几次 <8>: "))
, ] q; d" L# f" T: Z(if (null nn) (setq nn 8))
: f2 C5 ]1 D. F1 I# s (setq p4 (polar cen 0 rr1))
! C D% i" g: w* V (setq ang (/ pi 0.5 nn))
) ~% P3 c4 V" J (setq rr3 (/ rr2 2))
/ J' _+ h ]( ]7 q (setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))7 g- V( {* R2 f8 B' h
(setq ang1 (* 2 (atan (/ rr3 hh)))): V7 {; w* r. z: b
(setq p1 (polar cen -ang1 rr1))
' G+ X+ \. U- v' @/ w (setq p2 (polar cen ang1 rr1))) U% u |% J. G) l6 R# e, }
(setq p3 (polar cen (- ang ang1) rr1))
3 w M* L) `" @0 B& Z1 Q! g (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")9 l% g" w/ f4 R! ~9 ?4 Y
(command "array" (entlast) "" "p" cen nn 360 "y")
* O) G) p% A# [$ F8 S (prin1)
" ^3 p7 K, U) G& @$ v8 T ) |
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发表于 2011-11-11 11:00:55
楼主