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本帖最后由 476966986 于 2011-11-11 11:18 编辑
, g1 \5 D3 m/ Z; l1 i6 e" \* d3 I+ S% @. ^
(defun c:62-12()
. A: V, b3 X# G% o; g1 w0 e n/ s (setq cen (getpoint "\n请输入中心点的位置")) * Q4 ]+ W) g# q2 n
(setq rr1 (getdist cen "\n大圆半径: "))2 W0 n8 a5 u- x9 m& b, m4 H4 O
(setq rr2 (getdist cen "\n小圆半径: "))" i$ i7 w. c3 }2 g
(setq nn (getint "\n重复几次 <8>: "))
6 {8 d% a$ E6 ]: s(if (null nn) (setq nn 8))
' M5 A0 `3 }' ]% w9 i (setq p4 (polar cen 0 rr1)). W/ m; ]6 C: \
(setq ang (/ pi 0.5 nn))
: G2 N1 }' F9 i2 d F- d' ?; N! J& B (setq rr3 (/ rr2 2))# [0 ^ [ W v1 j! X$ R: z
(setq hh (sqrt (- (* rr1 rr1)(* rr3 rr3))))
; {. g# L8 |7 u- S! N (setq ang1 (* 2 (atan (/ rr3 hh))))0 s- N" o4 w1 M- O
(setq p1 (polar cen -ang1 rr1))
! R0 ~ T5 q8 p$ V (setq p2 (polar cen ang1 rr1))
2 P# l* \4 U. V (setq p3 (polar cen (- ang ang1) rr1))) _& y9 r' J; ?: U( R$ ]
(command "pline" p1 "a" "ce" p4 p2 "ce" cen p3 "")5 v; @8 _. q6 m% N2 b
(command "array" (entlast) "" "p" cen nn 360 "y")
% Y' M+ f$ ]! N% } (prin1)% m( h2 f9 S3 v( ?: X+ U; U
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发表于 2011-11-11 11:00:55
楼主