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本帖最后由 476966986 于 2011-11-11 11:18 编辑 8 Y- g( G7 R. c5 L* s- j
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(defun c:62-12()
( M% p+ d; Y+ d; L3 l (setq cen (getpoint "\n请输入中心点的位置")) ! k; D9 h3 ~) N/ I, Y
(setq rr1 (getdist cen "\n大圆半径: "))/ H; L2 H1 ?8 L/ t" W! h" h3 Z
(setq rr2 (getdist cen "\n小圆半径: "))& j3 ~/ H2 z. p7 |7 R' p" |0 s* b: {
(setq nn (getint "\n重复几次 <8>: "))' o) ]& s/ f: ^; k7 O! n
(if (null nn) (setq nn 8))% R9 J& H* x+ y
(setq p4 (polar cen 0 rr1))1 }3 d, J2 c# b8 w, c+ P h" U
(setq ang (/ pi 0.5 nn)); |; _; H: F' X7 B' O0 x4 ?
(setq rr3 (/ rr2 2))
& @& `* I D" p (setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
. m4 G5 U4 w: j0 l" ]" [ (setq ang1 (* 2 (atan (/ rr3 hh))))
1 ~* V3 M* W$ s+ z4 ` (setq p1 (polar cen -ang1 rr1))
! g, n( ?# A" D (setq p2 (polar cen ang1 rr1))
# J) n8 h! W3 b# y; d (setq p3 (polar cen (- ang ang1) rr1))
7 w M; \, A, j8 J/ H$ d% b (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
- {/ K& ]9 F- `$ z* l, y (command "array" (entlast) "" "p" cen nn 360 "y")& Q. E) E+ p7 i7 ^0 Q
(prin1)
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发表于 2011-11-11 11:00:55
楼主