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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()
5 s% Q4 U! z$ [ Y9 ^ (setq cen (getpoint "\n请输入中心点的位置"))
- f2 a! d/ t# t D. E& Z(setq rr1 (getdist cen "\n大圆半径: "))
& e6 H* r; \# ^, S2 O(setq rr2 (getdist cen "\n小圆半径: "))
& F3 E |1 S% X(setq nn (getint "\n重复几次 <8>: "))
9 h* P k* ]7 p! L(if (null nn) (setq nn 8))% Q# i, {- ]* ~+ v( c, Y; N
(setq p4 (polar cen 0 rr1))$ v6 F: u; r6 y
(setq ang (/ pi 0.5 nn)). i D* \0 G# Z- W: b
(setq rr3 (/ rr2 2))3 a2 r: Y3 N' R a
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))4 `, a9 E# A8 L6 Y/ ?
(setq ang1 (* 2 (atan (/ rr3 hh))))0 e* o( e, @0 }& Y/ f' C7 {$ S
(setq p1 (polar cen -ang1 rr1))! f5 y J$ J) n# c$ X: P+ U
(setq p2 (polar cen ang1 rr1))$ Y: h4 w9 O! s) M5 ]$ ^
(setq p3 (polar cen (- ang ang1) rr1))9 B2 r' N) S3 F* o) y t
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")( `' z3 g% s9 ?3 K2 s' x
(command "array" (entlast) "" "p" cen nn 360 "y")
& x9 r# c4 q# e( y% V (prin1)
9 ` ?2 H+ T9 c ) |
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发表于 2011-11-11 11:00:55
楼主