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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：3 u+ g1 P$ e8 a4 F
/ O: ?' g, f) `- ^2 K2 }! G
Sub A() '本程序以20圆的圆心为坐标原点
( N9 p1 B7 m4 O9 n! b1 F. E Dim Y As Double '左上方小圆圆心纵坐标
8 @, A2 f0 y* k# Y4 a! y7 L' {5 w P Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量; r! P* H" \5 r+ B. ~4 G' w8 w
Dim R As Double '小圆半径1 v" v- N" _" V3 D/ z" n: T
Dim O(2) As Double '坐标原点9 z# R" [+ d' q
Dim O1(2) As Double '左上方小圆圆心
; ]1 Z0 ?$ y. U7 Q# _# B" N Dim O2(2) As Double '右上方小圆圆心# y0 A, W5 ^7 @; K; x
Dim O3(2) As Double '右下方小圆圆心
' a/ q* i4 `) t Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点8 _3 N8 l) O' K4 e
Y1 = 10 '迭代运算边界条件3 y3 B k) Y$ d4 r& X7 b9 N: f) q
Y2 = 20; A- q5 z8 @9 \* r* P- p
Do '计算合适的小圆圆心纵坐标
! Y: v6 Z1 g6 b$ S9 S& ~8 w Y = (Y1 + Y2) / 2* e" U3 K% w7 w9 R1 [
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)% h6 I" q+ [, w+ D: ?. F/ Q
If B = 0 Then
" I o# t' X6 L' b u Exit Do
$ b9 I. I8 @. F; N5 N ElseIf Y = Y1 Then
$ ~7 E+ ~- X- o2 l( F6 |# V1 i B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2). B8 |2 {; J/ |
If Abs(B1) < Abs(B) Then Y = Y24 f- E3 S3 T ^
Exit Do! e) a' l9 c" g' V+ m K
ElseIf Y = Y2 Then* W- k% Z3 y! y
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)( {2 L, g% ?3 Z" H
If Abs(B1) < Abs(B) Then Y = Y10 t" e% G" e! Y+ h
Exit Do
0 h" z6 N. [- V3 [ ElseIf B > 0 Then
* V! n# A( e p/ x, t2 Q/ _ Y1 = Y
/ j* |) g. Z( c7 | Else
: `* n& X. H9 z" D3 o Y2 = Y. k% D+ h7 W3 G; P. J9 i
End If
- [% {3 m# d0 Q Loop
; s' Q, Y2 z8 P1 e4 Z( v/ K0 c R = Y ^ 2 / 40 '小圆半径
; u6 I* w% L! W4 K O1(0) = R - 105 t U- k3 z, I, X/ S8 C
O1(1) = Y '各点赋值
1 |/ Y1 l. o3 M$ k8 o. X O2(0) = Sqr(0.5) * (10 + R)2 `' V) j# t8 a% z) I
O2(1) = O2(0)
5 E1 _0 R, t9 e" e% U4 K6 F+ q" U& p O3(0) = O1(1)
i# {" u4 x. t* M/ X O3(1) = O1(0)( G) t q0 c% c- u! j P& m
P1(0) = -10, F2 T. ]/ G* A0 r% K" n5 M! Y
P1(1) = -10
% ~8 @( C0 x* |5 t/ g P2(0) = -10. d. p3 V+ G- c7 L$ U# L/ z* S% N
P2(1) = 20
5 ?; k. ? Z& ]* w8 t$ ?1 R! S P3(0) = 20
4 M3 S1 ^. U$ q& ^' } P3(1) = -10
$ d) ^$ w" a n. m With ThisDrawing8 w$ V) H2 {6 h' p- N4 N) k
.ModelSpace.AddLine P1, P2 '画直线3 A E) ?/ x0 R! ^$ s+ k3 Y6 t
.ModelSpace.AddLine P1, P3
" f+ M9 ]) G6 z+ B .ModelSpace.AddCircle O, 10 '画大圆
$ E0 }1 ^# t$ z) C# r! ^ .ModelSpace.AddCircle O1, R '画三个小圆7 e. S4 z% ~- w# z' S& D1 W
.ModelSpace.AddCircle O2, R
* h4 R$ [/ C/ q( v .ModelSpace.AddCircle O3, R' m* D/ H( F4 ?5 X9 y6 ? p c- s
End With
$ B+ y) ?- f+ K8 zEnd 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