刚开始自学，计划是做成这样，可是在剪切的时候并没有达到目标。
$ c' Y, p: c. G/ s) t高手给指点指点。(等分数是随机，不定)
! @5 U8 W# c7 c7 x" p4 N# Q: e, e" H/ g
0 e6 ? F) V9 N# ~" G+ A! D, Y' q& f
(defun c:chilun()
1 i( f: V* e* N: x) a H) c (setq cen1 (getpoint "\n 中心点:"))
) ^- l" `) M$ B( Q (setq rr1 (getdist cen1 "\n 大半径 :"))( `4 d0 g. U! p( K2 A
(command "circle" cen1 rr1)- L: U2 @3 \! g6 a- b; |
(setq en1 (entlast))( _1 H a+ ?6 `/ i
(command "circle" cen1 "d" rr1)' B5 M0 c, N* g ]
(setq cen2 (polar cen1 0 rr1)), c6 C4 w0 |9 F
(setq rr2 (getdist cen2 "\n 小半径 : "))
7 w5 K$ s: W) F) m4 C4 E (setq nn (getint "\n 等分数 : "))# ]& m0 F5 o( `- }) y
(setq ang 0 ss (ssadd))
; W9 R" U$ e- h! r) Q( \5 s (setq angdd (/ (* pi 2) nn))
1 l9 |7 c: U+ n2 u$ h (repeat nn
# t" {% D0 a5 u. s( v (command "circle" cen2 rr2)
( j6 S3 N& h, s* D& o: @ (setq ss (ssadd (entlast) ss)). Y( t3 V$ }7 D/ B6 z
(setq ang(+ ang angdd))
5 r1 ~/ B: C" A (setq cen2 (polar cen1 ang rr1))
- U/ B' ^: E- R1 w1 m1 `+ n) x/ Z* d! f/ ] )
4 w9 E4 j9 `! f: H (setq ang 0)
8 g; r3 g1 i( a X (repeat nn$ T% e9 ]" l. {
(command "trim" ss "" (polar cen1 ang rr1 ) "")# J! k' ?5 z4 T7 d" q4 |9 A
(setq ang (+ ang angdd)): [0 J' f% N# A0 P8 a
)0 [+ A; ]3 r# G+ p4 u
(setq ang1 (* -1(/ angedd 2.0)) ang2 (+ang1 angdd) ang 0)
# r5 W$ L% n* m (repeat nn/ u9 Z1 x# U |; P# N. v1 |: U
(command "trim" (polar cen1 ang1 rr1) (polar cen1 ang2 rr1 ) "" (polar cen1 ang (-rr1 rr2)) "")
2 c- m. G$ b/ I% w (setq ang1 (+ang1 angdd) ang2 (+ang2 angdd) ang (+ang angdd)), h9 d+ Y& `9 d7 G9 D$ \( I
)
" {4 J2 E5 k/ W(prinl) - E/ F! N" g9 \% Y4 L4 l% k
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发表于 2011-8-30 11:43