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本帖最后由 476966986 于 2011-11-11 11:18 编辑 1 X/ k+ r+ J9 v, f0 o
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(defun c:62-12()
, M6 ~, V+ }6 X% V (setq cen (getpoint "\n请输入中心点的位置")) % S, b6 q* |9 g) C% J [ ]
(setq rr1 (getdist cen "\n大圆半径: "))" l) C1 d; ]5 G, |3 s( W$ t. ^
(setq rr2 (getdist cen "\n小圆半径: "))' q, r4 n" \# ^3 m$ f( k
(setq nn (getint "\n重复几次 <8>: "))
( x Y% s- H* c! ~(if (null nn) (setq nn 8))
% U" S% M& y6 T- c4 b! Q (setq p4 (polar cen 0 rr1))8 e [- x% L+ ~" n X/ f( a3 x
(setq ang (/ pi 0.5 nn))
: m) |" f7 x5 Q* N# g# k; K (setq rr3 (/ rr2 2))7 b" ~% g' Z. ]/ Y, s7 w
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3)))): p' M$ h7 S2 ? A
(setq ang1 (* 2 (atan (/ rr3 hh))))
3 x+ M1 P) u+ { ^3 x (setq p1 (polar cen -ang1 rr1))7 O0 W w5 s* D9 K
(setq p2 (polar cen ang1 rr1))1 ]( _3 Z8 n: l8 t: z0 ]
(setq p3 (polar cen (- ang ang1) rr1))3 P* D4 ^- |( ]) E) x
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
' P1 u/ U) \2 Y9 w2 _ (command "array" (entlast) "" "p" cen nn 360 "y")) h6 @ | `6 b" W% ^2 G# I7 f: D2 g
(prin1)
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发表于 2011-11-11 11:00:55
楼主