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本帖最后由 476966986 于 2011-11-11 11:18 编辑
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: P; U2 v" p( w, M( N$ y9 m(defun c:62-12()
% c) D* l* Y5 q$ j (setq cen (getpoint "\n请输入中心点的位置")) & c' S! J$ R& o( E
(setq rr1 (getdist cen "\n大圆半径: "))
3 m2 h: v# p, _* [1 f4 }(setq rr2 (getdist cen "\n小圆半径: "))
3 _2 ~0 _& g. \/ F5 f% S(setq nn (getint "\n重复几次 <8>: "))# Q, i; m0 U) r+ d& S) i* L
(if (null nn) (setq nn 8))- z- X. ]; x, W* Y/ J! i6 r
(setq p4 (polar cen 0 rr1))6 L. y# Q% ]+ V C6 L0 q9 n
(setq ang (/ pi 0.5 nn))
4 u7 ?9 _# i" f) y3 n (setq rr3 (/ rr2 2))5 n- ?7 V9 ]* n0 m' H6 e. ]0 N
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))- [) a9 U P; C) x
(setq ang1 (* 2 (atan (/ rr3 hh))))0 Y# I m3 } z e0 l
(setq p1 (polar cen -ang1 rr1))# C8 a/ f, q' u, ?; V- Q
(setq p2 (polar cen ang1 rr1))
3 @! o, U" C: g5 [9 E/ a (setq p3 (polar cen (- ang ang1) rr1))1 I0 [+ m6 i8 \9 f. ^ W) j
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")
' ^# H8 t5 F T# N5 r8 L @ (command "array" (entlast) "" "p" cen nn 360 "y") `# E7 O" {" R0 V
(prin1): y4 u2 J( H+ L$ M- B0 \/ `' v
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发表于 2011-11-11 11:00:55
楼主