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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()# T6 f, u7 H4 [% ]3 i
(setq L1 (getreal "弧L1="))! B: K- D" z) O, t- y0 G8 W# c
(setq L2 (getreal "弦L2="))
9 K, J! W# S# y! Y. J7 a2 o (setq y1 0.)9 Y, N0 L# z5 `* S$ d9 i
(setq Ln L2)- g6 ^: h# V+ ]9 A
(setq jd (/ (sqrt (+(*(/ L1 3)(/ L1 3))(*(/ L2 3)(/ L2 3)))) 10))" h6 P q- v0 |9 @/ e4 q6 D4 A
(while (> L1 Ln)# ^) z! E7 z6 [8 c. @
(setq y1 (+ y1 jd))
9 F$ }% }4 Q* `% K$ A (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
1 @: F5 s/ A7 }4 a- d (command "lengthen" (entlast) "")
9 \, V6 n. Q2 {6 g/ w (setq Ln (getvar "perimeter")) ) k, ~* R) S4 E+ {. f9 t# {/ A
(command "ERASE" (entlast) "")
5 n" d8 s$ C4 y( ] )5 g" P) {( T; k( r$ W4 @1 f! _
;;;------------------
. E; Y2 B$ a- a0 X! d' ~# S (setq Ln L2)+ n) K2 }0 E) @, N) V0 ^
(setq y1 (- y1 jd))2 n7 F$ r, n4 q+ @: B
(setq jd (/ jd 10))& U- d# d+ {7 K! J, a6 m, l
(while (> L1 Ln)
- v) j" Z6 J& g* r9 G5 ], f9 g( { (setq y1 (+ y1 jd))
5 G3 H: [4 R# d$ T! c t+ m; ~ (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0)). N. w% I, _& a; ?: V6 u |
(command "lengthen" (entlast) "")6 F& q0 v2 _! v" u6 _# n! r- W: z
(setq ln (getvar "perimeter"))
: g- z f6 G1 ~. K1 L4 V3 _6 o (command "ERASE" (entlast) "")
; u9 R+ B9 K! _+ Y6 D )
/ h0 G$ U) @9 |* @/ k3 G;;;------------------. B& T3 B* C2 N$ ]' @; b! p/ g
(setq Ln L2)% o. s$ c1 @" ]; z4 ^
(setq y1 (- y1 jd))9 v5 j: b- X1 U# t
(setq jd (/ jd 10))5 b! [ K d' w2 V6 p& w6 J( X5 T J
(while (> L1 Ln)
; ~% T5 `5 N' { o (setq y1 (+ y1 jd))
/ s; o$ Q2 v; H, R( E (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
4 V2 v/ r, u. r% g+ c* u7 k) c, p (command "lengthen" (entlast) "")3 b7 l0 u, P4 c! e
(setq ln (getvar "perimeter"))' S4 r) p! ^; r: e6 P
(command "ERASE" (entlast) "")8 h- p: g; l# }; p3 V- d& W
)
9 G" X: |- M% X% q% B# W;;;------------------5 O' L5 h$ z$ C+ J& p6 h$ s T
(setq Ln L2). `/ m L4 ]* V* M ?' b$ }1 ]
(setq y1 (- y1 jd))
5 H: q1 D' K5 }/ X; G (setq jd (/ jd 10))4 y5 C" W/ s+ p, f
(while (> L1 Ln)
6 m* A8 C- a1 U0 T: e7 b (setq y1 (+ y1 jd))
6 L y0 g+ b' v (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
1 y& [ l3 N; h7 H% t2 R5 [6 W (command "lengthen" (entlast) "")
" I8 s5 z- D# j7 B* \. ?3 v+ @ (setq ln (getvar "perimeter"))
3 A L. d& K0 ?" W) F5 j+ D! A5 \ (command "ERASE" (entlast) "")
2 {% b8 m1 ~2 Q5 B7 `: A6 r, l9 R )) ?1 L& h4 B" ^* E
;;;------------------
3 g0 ~7 V. i9 H2 ]$ d (setq Ln L2)
$ D( m0 A/ X' {: T (setq y1 (- y1 jd))
8 F2 W% {3 X& S2 p) G' N (setq jd (/ jd 10))+ `' P0 q+ f, Z8 X3 L. z
(while (> L1 Ln)
) ^( }9 _7 S; f1 _! m (setq y1 (+ y1 jd))) u4 x% }; }( ^ V" D
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))4 P# O! R9 }4 A. y, A
(command "lengthen" (entlast) "")1 b/ o; O3 r: t) g0 B3 Q
(setq ln (getvar "perimeter"))
* c8 \5 H% `: c (command "ERASE" (entlast) "")
( E( e a6 R' i )
9 Z Z& C( a3 d9 L6 x) Z;;;------------------- g3 T1 ]1 \" ?( d
(setq Ln L2)4 r4 _7 b. ]6 X! j4 c! Q1 o
(setq y1 (- y1 jd))( R7 K7 e! Y( a( l
(setq jd (/ jd 10))4 c7 Z7 G+ q3 `8 q: @( K2 G2 U8 O6 @5 b
(while (> L1 Ln)
0 b5 ^* O( n; N n: ?1 L( h# V (setq y1 (+ y1 jd))$ e9 v" q7 s+ \: `7 `+ M
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
) c1 Y' f- y9 T% i7 u (command "lengthen" (entlast) "")# a8 _$ R' ^5 G4 N' A5 J
(setq ln (getvar "perimeter"))8 F3 r) F0 J* Y+ ?) J7 L' r
(command "ERASE" (entlast) "")
3 F7 X: T: s8 [ )
9 k+ S7 d$ ?4 c' {0 w: c8 |. o5 _;;;------------------" Y/ Q1 c+ t( a' ]& j3 ]; Q: w
(setq Ln L2)
. F0 r+ q( r: x/ N5 U7 W (setq y1 (- y1 jd))& H7 O4 s* |$ b
(setq jd (/ jd 10))9 w" p$ Z4 `: F7 _5 H4 r2 y" }
(while (> L1 Ln)/ `$ Q1 t7 |# s
(setq y1 (+ y1 jd))* ` _! G! q2 v1 T; s
(command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0)), r5 v, n3 f5 g) Y) l+ r
(command "lengthen" (entlast) "")
+ i; }/ Y+ P" r) c d% P (setq ln (getvar "perimeter"))
: H8 ^5 K. b/ R) ? (command "ERASE" (entlast) "")4 z* m) g2 Y9 ]6 C3 I- o+ l
)% S% _6 P9 _% Y0 h1 T2 o
;;;------------------
7 @5 D8 ^* m: U/ z" {! w8 I (setq Ln L2), F$ L6 J3 ?7 |, Z
(setq y1 (- y1 jd))* V0 r1 E; I$ e, K1 B5 D) s
(setq jd (/ jd 10))9 p; D- T: y9 W: d/ X @" P5 c9 G
(while (> L1 Ln)
" S7 ?$ Y8 L: A7 I C" K, D, U (setq y1 (+ y1 jd))
( W: ^$ d: ^$ [1 S( ]+ K6 Y1 S (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
( B# x! d5 v3 A' D$ } (command "lengthen" (entlast) "")& h* _2 Y M m) z
(setq ln (getvar "perimeter")); f/ F4 u3 X; L" j p" c
(command "ERASE" (entlast) "")9 o' ~3 @9 r/ N: v# J9 f
)
0 k; n5 R( q7 T' g4 @, [" {2 D1 c
;;;------------------
: [* q+ ^5 _4 @9 T9 i! z7 k( c (setq Ln L2), ~* I7 }. O4 G- w
(setq y1 (- y1 jd))
7 ]7 ^5 ]; z% X; I% ` (setq jd (/ jd 10))0 z9 Y; k5 ?2 p: z% i# ?& [
(while (> L1 Ln)7 I: Q" b# a0 o
(setq y1 (+ y1 jd))
0 z6 F) A$ g7 F& Y3 o+ X (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))* v0 I* Y! j. S, }5 X* a$ e
(command "lengthen" (entlast) "")9 E- n6 M4 ^. S2 R& [* r
(setq ln (getvar "perimeter"))
! g$ ]' ^ j8 `$ M6 j6 L ]# }0 L (command "ERASE" (entlast) ""): e5 F, j/ Y4 {" u9 y; w* V
)
' I' R% u- {9 [/ y) L' O5 w: l) ~, I- m- H
;;;------------------/ V+ j6 Q% f, N4 e# k2 h
(setq Ln L2), Y4 h# V( ^: K$ |) G4 p
(setq y1 (- y1 jd))
$ b+ k6 B C' c (setq jd (/ jd 10))* U& \. @. ]5 Z9 @- ]% F/ ?% R
(while (> L1 Ln)
) S* P8 N2 W" X, g) T; n (setq y1 (+ y1 jd))
S' l) w2 n; @) B6 Q# B6 ^# a. s5 ] (command "arc" (list 0 0) (list (/ L2 2.) y1) (list L2 0))
# x4 x8 c [ ^4 l3 a3 w, H- ~ (command "lengthen" (entlast) "")# l8 s% A# |( o
(setq ln (getvar "perimeter"))
* `3 l) i. R! [# ?5 J& |( z( u (if (> L1 Ln)
% J) V: t* s+ a( N7 s. p (command "ERASE" (entlast) "")
6 G/ {( t' {$ Z6 d: } ()
' V, k# \# C9 F, ~) ]8 d: Y% f5 ^ )
" n' W) Q& G- \: }' d )
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