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本帖最后由 476966986 于 2011-11-11 11:18 编辑 ' L$ J+ c& }3 }; B1 d" [
5 Y7 Z0 q9 ?5 ~# O2 g5 k(defun c:62-12()% n. S2 g/ Y! V/ C! E7 V B4 j; n2 Y
(setq cen (getpoint "\n请输入中心点的位置"))
8 |' S2 x C+ b( s. G, L(setq rr1 (getdist cen "\n大圆半径: "))
; e/ s" D V; t0 ] ^% T$ `: ^, T(setq rr2 (getdist cen "\n小圆半径: "))# ]+ l3 N+ c- k$ m0 }5 J g
(setq nn (getint "\n重复几次 <8>: "))
0 u9 A( d3 F8 q/ P(if (null nn) (setq nn 8))5 H; c( o7 T$ B+ g6 d; S
(setq p4 (polar cen 0 rr1))
4 [/ Y. ~+ m1 s6 Q' s G (setq ang (/ pi 0.5 nn)). X$ W) a' h" Z7 b) F
(setq rr3 (/ rr2 2))3 W1 ^$ ?+ q r$ k& {, f, k" `
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))0 S6 j( Q' ]% q- U$ u* m; s G% D
(setq ang1 (* 2 (atan (/ rr3 hh))))
7 y- q, e7 K4 \& g" V (setq p1 (polar cen -ang1 rr1)): l3 M" ^$ ~3 M l' q- v
(setq p2 (polar cen ang1 rr1))' t6 T0 |1 A$ S3 o( J& q
(setq p3 (polar cen (- ang ang1) rr1))
5 Y( Y9 h! `. |& g0 _; X+ I! D8 X (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
, G! ~, F- ?- n- R5 j' B; d (command "array" (entlast) "" "p" cen nn 360 "y")
' E% V, l/ ~2 t& g9 i (prin1)0 e1 _# i" Z' b1 w5 g; l
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发表于 2011-11-11 11:00:55
楼主