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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：! r d: T: [/ D& O" J; X0 F* J
( [+ J" q- P. Z# U5 fSub A() '本程序以20圆的圆心为坐标原点
T8 r: h3 V% i1 E5 R1 k3 r* u Dim Y As Double '左上方小圆圆心纵坐标7 T4 R5 n$ c+ t6 G& |
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
- U+ T! i" A! @7 X Dim R As Double '小圆半径
' G+ ~6 O! n/ ~0 \ Dim O(2) As Double '坐标原点5 C) O, o$ `0 u# L5 b7 h0 N4 }1 S3 b
Dim O1(2) As Double '左上方小圆圆心2 ^2 J) {6 {% j' L+ ~" u3 j
Dim O2(2) As Double '右上方小圆圆心
/ l/ H2 X q# H: z0 Y4 h5 P4 L3 h Dim O3(2) As Double '右下方小圆圆心# s$ }% V, y1 b( D' L) a$ w, p% l
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
$ u' {" W/ L* H7 p9 h4 _: n3 ^3 D Y1 = 10 '迭代运算边界条件
- h7 E, n9 N8 F1 q- G Y2 = 20
7 S9 s$ I* g6 @" R+ V Do '计算合适的小圆圆心纵坐标- r/ V" y6 d& [( l; }2 s
Y = (Y1 + Y2) / 2" L: Z8 A! J5 N9 t1 H; l5 c# |
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)' w/ @" `5 X" g" S9 R& z
If B = 0 Then
4 |3 u( G' H% o/ b# f" b Exit Do
- D' v& M4 d. I$ C ElseIf Y = Y1 Then
4 ~0 `, t) P2 _+ q" b, p B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)5 v! z8 r2 L3 m A8 O6 h) p X* L3 b
If Abs(B1) < Abs(B) Then Y = Y2) ?/ {, k; t6 h, ]" i# N
Exit Do- w6 f' i. K( W
ElseIf Y = Y2 Then8 F; X% ?2 h& _. S6 |
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
+ G3 @) @$ y6 Q* D If Abs(B1) < Abs(B) Then Y = Y1
- z$ L# Y! S- m- z Exit Do" D, U9 c7 D3 r/ c; }& J3 i
ElseIf B > 0 Then
3 c& @, O: b n r6 C2 ? Y1 = Y/ k: N0 z6 |" q/ M0 D2 S" F
Else5 V, M! z5 o7 ^5 E* G
Y2 = Y
?1 r* s* u: i% V$ Q End If
( A* n3 @4 v- l! l! s! a& Z4 K9 m Loop
3 w$ z R5 H- H: d R = Y ^ 2 / 40 '小圆半径
6 Y6 D1 ^0 l* L# ] O1(0) = R - 10
5 y" j8 ], r& {, M+ @ O1(1) = Y '各点赋值: `3 Z( w, _1 |1 C; m, z- s
O2(0) = Sqr(0.5) * (10 + R)
2 {1 d+ N; O! W O2(1) = O2(0)
1 T* H: ]5 V3 T! J: ?: Z O3(0) = O1(1)
w% i& o. _. @# w" m O3(1) = O1(0)
" A4 h% F4 y: H, p! ] P1(0) = -10! M" G r% J" b. K( G8 i
P1(1) = -10
$ y! E2 K9 y8 t P2(0) = -10! N: i0 o8 d/ C2 F5 Q2 i
P2(1) = 20
' w* H) n; M& N$ \ P3(0) = 20
2 H" a; f* |- W v P3(1) = -10+ \. K2 u6 q8 ~# I; t, h# m9 W
With ThisDrawing ~" M" o7 V+ `4 B
.ModelSpace.AddLine P1, P2 '画直线
U! r* A( P6 W; U+ _+ Q .ModelSpace.AddLine P1, P3
* E2 ]4 B0 f3 E8 v$ X3 k: E: k .ModelSpace.AddCircle O, 10 '画大圆
' a3 f4 o5 I8 _1 k .ModelSpace.AddCircle O1, R '画三个小圆7 R5 j7 ]* r+ H! f. `1 Q
.ModelSpace.AddCircle O2, R
# t$ _6 z+ i& y& D/ R8 F4 X3 R7 { .ModelSpace.AddCircle O3, R" E% G( _5 x7 U
End With F* K8 e4 ~6 C- H7 y# t3 U
End 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