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本帖最后由 476966986 于 2011-11-11 11:18 编辑 ) |( n! O2 r: y8 g% \4 T$ o0 f
/ Y& u* F( _% e3 r( W6 A6 q2 b6 h(defun c:62-12()& d6 Z3 \% V3 S @
(setq cen (getpoint "\n请输入中心点的位置"))
; B& _6 p, g* ](setq rr1 (getdist cen "\n大圆半径: "))
, M5 G* c4 V x- i(setq rr2 (getdist cen "\n小圆半径: "))
6 q6 t! Q) N! }* |% b6 Y4 \& t(setq nn (getint "\n重复几次 <8>: ")), ^$ J G p0 u, P+ q* V
(if (null nn) (setq nn 8))' i) n$ H; q0 F8 m o
(setq p4 (polar cen 0 rr1))
* N# B! y( w; J* F/ g, Z# _ (setq ang (/ pi 0.5 nn))
. s9 |3 u" F# v5 V/ A) s( \- S (setq rr3 (/ rr2 2))
) x" Y* E h& y( Q3 F- K! n& W& Y- x5 K (setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))4 G7 a6 F4 P' O+ I. X
(setq ang1 (* 2 (atan (/ rr3 hh))))/ d, H0 |) B1 W, ^
(setq p1 (polar cen -ang1 rr1)). p' @8 g8 h8 l, s6 u( ?
(setq p2 (polar cen ang1 rr1)) t$ `. w3 g j" ?- k
(setq p3 (polar cen (- ang ang1) rr1))3 t e9 I6 i( f. _4 g
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
1 L8 B+ x ^& F (command "array" (entlast) "" "p" cen nn 360 "y")# z! K- q& E) h. ]% D( i, S
(prin1)
" x( F5 _: u7 V6 s- K5 O0 m8 S2 V. [ ) |
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发表于 2011-11-11 11:00:55
楼主