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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：% U q0 p$ c* h
* Z9 l9 @% W) [8 {- C# P
Sub A() '本程序以20圆的圆心为坐标原点6 E; @& M; a/ i: [- u" e4 C9 b
Dim Y As Double '左上方小圆圆心纵坐标
; K: B6 o E' A9 [ Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量' g. \; x3 h j) ]8 _1 [* Q B
Dim R As Double '小圆半径# W& _2 i) t. p
Dim O(2) As Double '坐标原点
& r! B7 c, j# Z5 j Dim O1(2) As Double '左上方小圆圆心
5 `* K- f4 p# R+ C i1 | Dim O2(2) As Double '右上方小圆圆心+ S3 a( R7 g+ x
Dim O3(2) As Double '右下方小圆圆心2 |, Q9 j( Z; {( @7 g
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点3 ?) G* a1 I; y0 ^* F' n- B3 Q* a B! n
Y1 = 10 '迭代运算边界条件2 h' i4 ]+ f: {+ ]; T- E) B, V4 v3 M
Y2 = 209 n! R- a+ y* C, b& w9 u+ Z" m0 {
Do '计算合适的小圆圆心纵坐标
* m- g N w+ V' A+ X. I* _ Y = (Y1 + Y2) / 2$ U! \0 n: A* ?& G6 k
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)0 C I) m0 l" Q
If B = 0 Then, K/ p# p# W: o5 l" E& _4 o
Exit Do- @& F2 W1 ^1 }9 D
ElseIf Y = Y1 Then9 }8 |4 p- C6 k
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)7 f- P+ b/ m) c7 _, m8 N
If Abs(B1) < Abs(B) Then Y = Y28 R2 K1 X6 A7 f( z$ g: Z$ d
Exit Do
" n% j6 z( ]8 ~6 [+ h6 w ElseIf Y = Y2 Then! T- s5 v3 ~+ H+ s
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)2 T; _8 s8 w5 S3 {
If Abs(B1) < Abs(B) Then Y = Y1 L- _" T* L8 r/ p- G/ } {
Exit Do. U: Q& s( f; I2 A+ e& `
ElseIf B > 0 Then
# m, @0 O9 [+ l% I1 n3 B0 K Y1 = Y
+ y/ y3 ]% ?/ l Else
3 l O" C4 q# G. d% S: P- E0 r, ] Y2 = Y0 c! t, c9 _! d0 P1 }3 Z" h
End If
6 m/ O; j/ e& q+ }7 P# ^ Loop: y7 k& _3 f( p+ B3 d g
R = Y ^ 2 / 40 '小圆半径
8 N) G+ g. g5 s' ` O1(0) = R - 10; _2 H; W+ g; O( ]
O1(1) = Y '各点赋值0 f/ N0 B: h- c$ x4 D
O2(0) = Sqr(0.5) * (10 + R)$ f/ y* t7 ]3 k5 e' j5 V3 Q
O2(1) = O2(0)& ^- g% t5 w' p; ]
O3(0) = O1(1). G+ s6 i+ U# ]% [
O3(1) = O1(0)% k% C. x9 G+ I
P1(0) = -10# i `' l( e F( `' z
P1(1) = -101 `, J# f4 d0 E) i1 x1 Q) O
P2(0) = -10
0 r4 C$ i- `, h& H U- ^' j( { P2(1) = 20
# o8 v+ o; T# U. T- v1 Q; V4 E P3(0) = 20$ A6 H6 y% j$ ]
P3(1) = -10' f, _( q/ \8 \1 u% p) u
With ThisDrawing4 x3 H" \/ @( s% w1 n" n" t" n
.ModelSpace.AddLine P1, P2 '画直线
9 E0 g0 u1 ]/ H4 j9 `$ D3 ]1 r, z .ModelSpace.AddLine P1, P3
# K# L8 D% D/ `- v+ Y .ModelSpace.AddCircle O, 10 '画大圆
9 Z) A5 L' X- X6 D* A7 R0 h .ModelSpace.AddCircle O1, R '画三个小圆
) _, c+ m* z! _ .ModelSpace.AddCircle O2, R# X5 Z) j+ n M# i N0 H) B
.ModelSpace.AddCircle O3, R8 a m, [; ~4 S$ m: x4 D* Y: J
End With
) _* _# \/ d. z. M+ Q+ TEnd 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