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本帖最后由 476966986 于 2011-11-11 11:18 编辑 + _3 H0 P. ]/ x, K$ I
6 {7 |5 f: |. e# r(defun c:62-12(). \( w: q: i% p" T6 X5 _+ k
(setq cen (getpoint "\n请输入中心点的位置"))
: i' H$ K" ]7 y5 g" h- G% Q; \(setq rr1 (getdist cen "\n大圆半径: "))
& S+ ~7 {2 A% j(setq rr2 (getdist cen "\n小圆半径: "))
- q. i) @" z3 o4 S) _(setq nn (getint "\n重复几次 <8>: "))
: j- H% V! J) U: ?/ @) j. A/ Z) S N(if (null nn) (setq nn 8))+ r4 U& \1 z; R
(setq p4 (polar cen 0 rr1))4 p8 a0 j: t! |% h M. `9 T
(setq ang (/ pi 0.5 nn))
. V& J0 _/ A# y7 K! @9 U4 { (setq rr3 (/ rr2 2))
7 \2 t2 A, }: o* ~# O R (setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))" q1 A. _7 o8 ?; i+ B
(setq ang1 (* 2 (atan (/ rr3 hh))))+ L7 i: ^; T2 L% Y/ a
(setq p1 (polar cen -ang1 rr1))
' x9 Q: I# ?: w9 S, w6 U (setq p2 (polar cen ang1 rr1))
" X5 W+ L# U! ]4 V& @; V ^2 h) ? (setq p3 (polar cen (- ang ang1) rr1))
/ [& {& \" W0 [ (command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")/ y" k& }4 p" h7 N" ~
(command "array" (entlast) "" "p" cen nn 360 "y")+ k9 R/ f, W. Y. J
(prin1)
# h- p4 S. k @$ F4 P U. j! D1 _ ) |
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发表于 2011-11-11 11:00:55
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