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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()& O6 W8 r* e* M0 p) W/ D$ [
(setq cen (getpoint "\n请输入中心点的位置"))
6 t( {; V8 o" S(setq rr1 (getdist cen "\n大圆半径: "))
* h) b+ S9 G; x; g3 r* f7 i(setq rr2 (getdist cen "\n小圆半径: "))
; y! {' e/ ?8 D0 \(setq nn (getint "\n重复几次 <8>: "))
! w* T6 R8 y1 v. c. D(if (null nn) (setq nn 8))
8 R" Z4 t% }8 \ (setq p4 (polar cen 0 rr1))
' y. I! |3 P! p. ?0 b (setq ang (/ pi 0.5 nn))' j6 y L) z5 R. U: s
(setq rr3 (/ rr2 2))
' B5 }* C8 r1 l, w5 _# ` (setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))$ G0 I8 c. U# j# f# x& X& y
(setq ang1 (* 2 (atan (/ rr3 hh))))
/ i1 p$ T n3 O (setq p1 (polar cen -ang1 rr1))
, Z2 Z& @' U+ G" J' z5 ~, d' n (setq p2 (polar cen ang1 rr1))
; n! H' C$ R p0 O8 A& T (setq p3 (polar cen (- ang ang1) rr1))
( T% H" [ n( {% c+ G9 S (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
0 m- \3 p/ Q8 }3 c (command "array" (entlast) "" "p" cen nn 360 "y")! c2 x/ O5 Y2 O" C3 p6 W! Y4 @
(prin1)9 K" f% b! D# c4 b% b
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发表于 2011-11-11 11:00:55
楼主