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发表于 2008-9-28 12:50:59
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来自： 中国江苏无锡
(defun c:aaa()! u( q: v- F" _* F/ D& o& p) {, }
(setq L1 (getreal "弧L1="))
0 u. t8 M" l) f) v (setq L2 (getreal "弦L2="))
U B0 ~; \' @8 P (setq y1 0.)8 [; t" {* {6 ^( B# o/ S
(setq Ln L2)' s5 Y$ Q3 }) r( S" E/ y% M
(setq jd (/ (sqrt (+(*(/ L1 3)(/ L1 3))(*(/ L2 3)(/ L2 3)))) 10))8 R c, I$ Q- } c/ N9 C
(while (> L1 Ln)3 w) H z% I% N; s% P) _
(setq y1 (+ y1 jd))) L9 ?* J1 y, S3 g
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))/ v. ~+ L, h* f# ]
(command "lengthen" (entlast) "")
5 j% g C% E8 [6 s( L2 o( X (setq Ln (getvar "perimeter")) # \- V# ?1 o- B# Z
(command "ERASE" (entlast) "")+ m, k8 B' H, {, K$ ]* g
). w8 d0 ~$ e8 D ^* w
;;;------------------
1 K, ]: Z* |: e (setq Ln L2)2 G/ A: n$ h0 X- g0 y
(setq y1 (- y1 jd))( |3 j7 W3 I$ o. d8 H3 B8 S
(setq jd (/ jd 10))
% y2 E( a% ]; W4 G. J (while (> L1 Ln)
, M7 n; I+ K3 G' q- R2 V% X2 e (setq y1 (+ y1 jd))
6 @- V8 M& l9 n (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))- W3 B' q& w q& X
(command "lengthen" (entlast) ""); O. n/ Y* Z3 n/ |
(setq ln (getvar "perimeter"))
! P: ?8 F7 B9 u0 \' h1 p- @ (command "ERASE" (entlast) "")
4 T$ ~& c+ ^! B# b3 e; r& d4 c4 f )
1 ~/ ~# J0 L) a" B8 `- m. Y;;;------------------9 T* H7 ~' s8 G0 x
(setq Ln L2)6 Y! \. n$ G' Q. D
(setq y1 (- y1 jd))) v9 L+ d8 L% t" E/ B
(setq jd (/ jd 10))
X8 S7 Z6 a, A3 I" o5 y (while (> L1 Ln)
" {0 B/ D% [4 M9 c" Y$ ? (setq y1 (+ y1 jd))
) m" u, ?/ L' H; C; ~+ ? (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))- S0 p7 ] a, N, S
(command "lengthen" (entlast) "")! f/ l7 U/ A( J4 p" {
(setq ln (getvar "perimeter"))
\* _1 u! [: _% {/ \ (command "ERASE" (entlast) "")
; L; D- o7 W$ m* T- Q) \ )
, G; P1 Z' |) F* D% j# A;;;------------------
. u( n2 H/ I! j7 j6 S% ? (setq Ln L2) `; T; L* U5 T; j! M
(setq y1 (- y1 jd))% V" s& k% ^) c3 U
(setq jd (/ jd 10))
A6 u$ p: M8 Y: |4 b (while (> L1 Ln)
- P# g7 U C H+ L8 t7 j/ a% e (setq y1 (+ y1 jd))1 t, D$ _- e' \8 r" Z7 w
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
7 v' a- O0 e) [9 R0 U (command "lengthen" (entlast) ""), d2 h5 X2 W) J7 M4 M
(setq ln (getvar "perimeter"))
/ F4 C9 ~' h; V$ @ (command "ERASE" (entlast) "")* ~7 R! \' G2 S) ]* V: ?5 ]
)& {+ Q; e/ c$ v: Z3 ?( A" C; l
;;;------------------9 A, S4 C% K6 u) D# r$ ~& y
(setq Ln L2)
- R1 W) d; N- C; G% U8 } i/ ? (setq y1 (- y1 jd))
) g2 ^& D" l* t: a5 l @' N( f (setq jd (/ jd 10)), _3 i# `3 L9 V1 A; A: q
(while (> L1 Ln)4 e8 M% z5 X3 O+ \& \
(setq y1 (+ y1 jd))
3 p) u" [) s1 ]: Y (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))9 \1 O0 }. ~/ J0 [, p
(command "lengthen" (entlast) "")
/ ?5 h0 A6 O5 R (setq ln (getvar "perimeter"))
) c8 r2 b, \. N: m( l (command "ERASE" (entlast) "")3 L2 ]: i; K/ c) M }
)0 a. `5 K* K1 s1 A. B
;;;------------------
5 s' }& ]1 _0 w3 N* N% f (setq Ln L2)( B5 m9 `: b+ o8 X
(setq y1 (- y1 jd))
O# b% u9 B9 r8 k) z (setq jd (/ jd 10))3 g' f1 B. f7 K3 k
(while (> L1 Ln)( k0 W x; r' E7 |) k' b* w
(setq y1 (+ y1 jd))
' K9 \ F# P' ]% ? (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
* _5 ^" ^4 T( i$ g4 W0 { (command "lengthen" (entlast) "")
2 t% x, k1 c6 X2 K (setq ln (getvar "perimeter"))
% R/ H( C+ J/ S1 Z% w (command "ERASE" (entlast) "")! F. m& U: N1 p0 u; c
)
9 S) p% o8 J+ S& J8 A m& U. a, ?;;;------------------& {1 E$ b; f' J6 m
(setq Ln L2)9 Q+ n: P3 J2 e! s% h" [& S
(setq y1 (- y1 jd))
3 l, G# q+ K' V, ? (setq jd (/ jd 10))
5 g U; d. ^8 P8 p6 F, f6 n+ g (while (> L1 Ln)0 a, V, B3 ?9 \) C* y+ U
(setq y1 (+ y1 jd))$ v) U7 u( h# Q& `% y' I/ o4 g
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))( Q6 p9 [2 Z I; e
(command "lengthen" (entlast) "")$ L/ G( j4 W( N5 h( d
(setq ln (getvar "perimeter"))
5 A) F% J6 Q3 d# N+ y% c (command "ERASE" (entlast) "")
3 k1 M( n" X9 ` )1 S( U. b7 S* v- D* G% {8 P
;;;------------------
`+ p$ S# j# b# ` j9 F; W (setq Ln L2)
2 J9 L- o* i5 K% L( L0 I (setq y1 (- y1 jd))9 f! T4 s% H- J1 M
(setq jd (/ jd 10))
0 y' s( J, F' Y* z/ t; j (while (> L1 Ln)
' h/ ]" V, G$ S( Q: A# R5 T (setq y1 (+ y1 jd))+ H0 t# N2 l9 p/ v! B
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))) e* Y. c: k. s# s+ A
(command "lengthen" (entlast) "")# E0 T4 z$ |6 S$ N N
(setq ln (getvar "perimeter"))
e8 m, o9 V j9 w, i& o (command "ERASE" (entlast) "")3 ~5 W6 E, w5 C8 w% T3 b
)
2 O6 z* H# p. c, Y( H
! B) Y1 M7 J# r- ^; q8 z# o1 B! I' V, U;;;------------------ 1 Q- a* v6 k$ {; H8 [! W4 l/ @
(setq Ln L2)( O4 p% i8 u" v' S: o
(setq y1 (- y1 jd))
6 u* O0 A6 c' f5 o (setq jd (/ jd 10)): e( t. L: w$ h8 g: d2 h6 M% j' D' S
(while (> L1 Ln)5 j F2 s3 ~- n6 i/ `( A$ h
(setq y1 (+ y1 jd))
! L5 N' y, @- \& [* s (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))3 Z' Z! f) n; x1 }) V$ a
(command "lengthen" (entlast) "")
* k% @# o, a' |5 s- x (setq ln (getvar "perimeter"))
+ ~/ _. e( W1 g0 N (command "ERASE" (entlast) "")
, Y! X9 v6 K ?, g- F( o( C0 a )9 P- G7 }) d( X; {
! I4 _$ x9 ]2 u! Q
;;;------------------, C1 }1 A# k! B, d
(setq Ln L2)% A7 s" L3 V- a
(setq y1 (- y1 jd))* H0 _, K- e5 N& p+ e) f) a
(setq jd (/ jd 10))7 V/ d, R6 W+ i$ N
(while (> L1 Ln)
1 V3 y3 U$ d: [! \3 e6 Z+ S (setq y1 (+ y1 jd))6 a# E: X( w- |2 G) B# ?# i( k# N' U1 o
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))" }1 ^9 b0 N# g4 Q2 t
(command "lengthen" (entlast) "")3 Y/ |* X* k9 W6 p) Y4 L; F7 B
(setq ln (getvar "perimeter"))
$ c. Q7 o: u2 F, z% |- i- ?9 z (if (> L1 Ln)
; Y; g& I+ R4 x. b (command "ERASE" (entlast) "")
( g, N- ^) P; E- L( [# p, U2 W ()+ A4 ~7 l% X7 X6 |" w' K
)
+ g' n; l: l& L/ A8 s' `$ F; s )
}$ O: U; E; E' o& W
l9 Q+ ]6 E' r" ~) |
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