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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()
5 ~ a+ V0 m+ t (setq cen (getpoint "\n请输入中心点的位置"))
( e, e) ?: D( M$ j3 A* m1 ](setq rr1 (getdist cen "\n大圆半径: "))0 O- Q$ n0 e/ ~1 j# ~% l# _
(setq rr2 (getdist cen "\n小圆半径: "))
0 ]" K6 k/ a' Z2 M& G(setq nn (getint "\n重复几次 <8>: "))
% J0 A D! `8 B- a+ o% G" r(if (null nn) (setq nn 8))
! y5 q/ }" A; e% ] (setq p4 (polar cen 0 rr1))
$ R4 _( Y, r3 u* H4 y z- B) o# r2 r (setq ang (/ pi 0.5 nn)): x. }3 ]7 g% B$ \" {# B* C
(setq rr3 (/ rr2 2))8 Z3 f9 _; b* [* |* _1 ?
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))6 ?) a1 Z+ a) X/ a
(setq ang1 (* 2 (atan (/ rr3 hh))))
& \ I4 H5 j- H/ f1 M (setq p1 (polar cen -ang1 rr1))
- I" o' w$ ^" [$ x0 l. K* Y (setq p2 (polar cen ang1 rr1))& ]8 I8 g x) U+ t( J* I+ p: f
(setq p3 (polar cen (- ang ang1) rr1))& m9 r8 N; p4 O5 J3 d0 b! n, w
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")2 S# _, g9 j0 N1 g4 S
(command "array" (entlast) "" "p" cen nn 360 "y")
/ z5 _7 k2 Q t `8 O (prin1)* U" y `. l" ^, V1 G8 X1 a0 X; q, @
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发表于 2011-11-11 11:00:55
楼主