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发表于 2007-3-9 14:41:30
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来自： 中国辽宁营口
用VBA画图方法
VBA源代码：% ?$ F5 d7 C1 G) c
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Sub A() '本程序以20圆的圆心为坐标原点; Q. w! q. Y1 b$ ~
Dim Y As Double '左上方小圆圆心纵坐标
3 U. M$ x1 P; D# D$ j Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量9 c% d8 G+ q( I7 V. R" t
Dim R As Double '小圆半径5 Y& M* |/ Q6 X1 V
Dim O(2) As Double '坐标原点
+ d. g- V a% Y# g0 @ Dim O1(2) As Double '左上方小圆圆心
, k: A- V8 g8 m; m3 s Dim O2(2) As Double '右上方小圆圆心' n! @' d1 N L" B/ p5 D
Dim O3(2) As Double '右下方小圆圆心2 ?/ E& G, S( Z5 a
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
2 M5 v8 M3 _4 {, i7 n( {1 c Y1 = 10 '迭代运算边界条件1 ?2 N( y3 p* T a! F+ g) F7 X
Y2 = 20
& J. Y2 Z! S, [7 F3 D3 V( m* {3 `( ~ Do '计算合适的小圆圆心纵坐标/ d& A1 B, |$ y; v
Y = (Y1 + Y2) / 20 K. w* _3 _( H8 Y4 g- o
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)+ R! _4 C* P6 q3 ]* o8 p
If B = 0 Then
9 f; e4 O/ G$ W4 j' Y- ^ Exit Do
- }/ Q* f: X8 K. j5 F$ w ElseIf Y = Y1 Then& d8 T# h- u9 r' w8 m
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)% G) S" K7 j6 ~+ F! ~* d P' H
If Abs(B1) < Abs(B) Then Y = Y2
8 y9 b' c* a( ], C' z Exit Do* r5 i3 S( L* u- d; B
ElseIf Y = Y2 Then8 f: r' A. t5 @( I/ ^' c i
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
# e& g$ f$ h7 a If Abs(B1) < Abs(B) Then Y = Y1( Y# r3 N i# E ^& S; t; s" Q
Exit Do
( _$ k' I7 G! s, B ElseIf B > 0 Then
" P9 u, ~9 D( v Y1 = Y( H& p& M# ^/ s4 m; u
Else G/ ~4 B5 M" h4 I$ |8 s; y z
Y2 = Y
! }1 [% M; ~- n0 x7 @( g2 r( z% O End If4 {0 Y9 B+ W6 }% d. P& b! A
Loop6 n/ J; F5 S4 c8 `4 V. |; `8 R/ H
R = Y ^ 2 / 40 '小圆半径' Y) \0 b: V& W' f2 n
O1(0) = R - 10* a. N& R2 e0 g# k" A
O1(1) = Y '各点赋值2 v: r; N/ z+ S+ r1 |8 ]2 i
O2(0) = Sqr(0.5) * (10 + R)
3 E5 X6 C/ B$ }' n4 k O2(1) = O2(0)+ a) O. p8 J5 T/ E( i2 |: z( U# B
O3(0) = O1(1)# X, ]$ f7 F9 W6 d
O3(1) = O1(0), J0 H; g8 M M5 G+ {, b- P
P1(0) = -103 A6 W% d! P' k5 L! p3 m( x& |2 k
P1(1) = -10/ r/ \2 q, q. |
P2(0) = -10 F1 C4 x4 Z8 M. C; |" M" H0 D
P2(1) = 203 U9 g8 B$ B" F7 L" p& S
P3(0) = 20
* r( ~ w, J v# h' z3 w0 A P3(1) = -10
5 O6 t/ e7 U# U( @ With ThisDrawing
# s* `9 h0 y) P: \7 f .ModelSpace.AddLine P1, P2 '画直线
* N6 U0 F' k/ C& ? .ModelSpace.AddLine P1, P3, ?+ p" P0 V1 ^5 X. Y/ ]; w
.ModelSpace.AddCircle O, 10 '画大圆9 A o& v; m$ Q p( V0 S
.ModelSpace.AddCircle O1, R '画三个小圆
3 `) c9 f- m) t' m' H& ?1 ] .ModelSpace.AddCircle O2, R, i/ f/ m3 _. ]' \& X$ I3 E1 T
.ModelSpace.AddCircle O3, R( G' i7 M. ~1 r$ L. e5 ~
End With
2 [# b8 q. }1 n! q4 F4 f: kEnd Sub |
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发表于 2007-3-9 09:43:24
发表于 2007-3-9 12:21:41
楼主
都好厉害，我没想到的都给想到了／
:L