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本帖最后由 476966986 于 2011-11-11 11:18 编辑 ! N1 v: `5 T3 M) e. j
" J$ i: J: ]/ T I(defun c:62-12()
/ K- u% ] _% ]* a0 |) z$ U! Z (setq cen (getpoint "\n请输入中心点的位置"))
* ^6 K. G( W+ G" |& U& f(setq rr1 (getdist cen "\n大圆半径: "))
0 f6 v0 H; L! H6 K/ Z9 C. H(setq rr2 (getdist cen "\n小圆半径: "))
3 d' B* \ n- d, c j/ c(setq nn (getint "\n重复几次 <8>: "))% s, }- u F; u( F
(if (null nn) (setq nn 8))
) |. |3 ]8 t, x& d& d& U7 p' Z (setq p4 (polar cen 0 rr1))5 p# c! {9 q+ u1 a! a
(setq ang (/ pi 0.5 nn))1 W& {; K0 r' X. \: F* d
(setq rr3 (/ rr2 2))5 P: d1 e; A8 P# |3 D
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
$ {: Y) q$ S. L) `! }5 ? (setq ang1 (* 2 (atan (/ rr3 hh))))
" Q. a( ]2 `4 z- Q (setq p1 (polar cen -ang1 rr1))
`: ]0 }# k* h% r* {) ` (setq p2 (polar cen ang1 rr1))1 W' ^) p2 j! T
(setq p3 (polar cen (- ang ang1) rr1))0 Y& T; W* d" x+ _8 Y6 e3 G
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
) ]9 t8 d7 h: N: K/ x& [ (command "array" (entlast) "" "p" cen nn 360 "y")
' n5 B! _/ x& F6 M) E+ M0 _, f (prin1)
) o1 H/ I, c: @- A ) |
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发表于 2011-11-11 11:00:55
楼主