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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()0 e- c& |% q" Z8 S C
(setq cen (getpoint "\n请输入中心点的位置"))
* h! _& T& g: z. m q: W1 q(setq rr1 (getdist cen "\n大圆半径: "))
$ Q$ D# V" | E4 m) }6 e(setq rr2 (getdist cen "\n小圆半径: "))
0 V6 h* l9 a$ h# D" r- B(setq nn (getint "\n重复几次 <8>: "))
5 e! K( e. P. Y( A8 s(if (null nn) (setq nn 8)) ]) ]0 @& J% S/ S
(setq p4 (polar cen 0 rr1))
8 p3 \' L( ?$ Z: Y (setq ang (/ pi 0.5 nn))
* J3 T3 Y. f! f9 [ (setq rr3 (/ rr2 2))( [2 v% w/ Q0 j6 [
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))) c5 d$ q: l6 k! D
(setq ang1 (* 2 (atan (/ rr3 hh))))
H/ {% T) o0 f( `) h (setq p1 (polar cen -ang1 rr1))3 N; @# R. J: d3 }; m
(setq p2 (polar cen ang1 rr1))
4 E- O# k v8 J (setq p3 (polar cen (- ang ang1) rr1))
, M% ^0 g, e5 K" X4 B5 T (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")( Y. z+ u) N) L) a5 Q; k
(command "array" (entlast) "" "p" cen nn 360 "y")3 s* F8 F+ S0 f# |- U! f, F0 V( [0 E
(prin1)
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发表于 2011-11-11 11:00:55
楼主