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本帖最后由 476966986 于 2011-11-11 11:18 编辑
# L: d, ]( Y# g* E. w8 P5 r; [8 c: d- x
(defun c:62-12()( y* `* c, N% c# c3 \
(setq cen (getpoint "\n请输入中心点的位置"))
0 }! Q: K- U0 e4 N, s, v3 U(setq rr1 (getdist cen "\n大圆半径: "))8 u" u- d- k( N. A" m
(setq rr2 (getdist cen "\n小圆半径: "))) L+ _, o2 t4 G+ N1 R& Y* J
(setq nn (getint "\n重复几次 <8>: "))$ ^) o6 H" Y. D
(if (null nn) (setq nn 8))
. ^7 B* X7 h- Q7 \* J' A (setq p4 (polar cen 0 rr1))
8 \* m' y% s# q( {5 Q t, ? (setq ang (/ pi 0.5 nn)); B; G, [3 u+ P) r2 F& U
(setq rr3 (/ rr2 2)): a( ?7 M. x" y2 p& ?2 _
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
8 B* X1 x/ a8 _9 R# H" Z" _ (setq ang1 (* 2 (atan (/ rr3 hh))))
8 ~7 i, R1 v- U3 u/ V (setq p1 (polar cen -ang1 rr1))) s2 n/ o$ B% @0 n
(setq p2 (polar cen ang1 rr1))
1 a% b7 G9 y, @6 B (setq p3 (polar cen (- ang ang1) rr1))" d$ W6 D; K1 M5 d0 e. p4 w; x" ^
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")4 h. B8 x7 ?8 i1 B2 E
(command "array" (entlast) "" "p" cen nn 360 "y")4 B+ {: K4 E N* D
(prin1)6 n" x$ y8 Z I9 G$ P
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发表于 2011-11-11 11:00:55
楼主