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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：: Z6 ~0 q ]" o D1 ^6 N! X, n
4 ?# Y w' v3 i7 h: E* tSub A() '本程序以20圆的圆心为坐标原点 o. ]" V1 n Q; |4 g. q9 Z+ j) q
Dim Y As Double '左上方小圆圆心纵坐标5 x; W S8 J" g% o, r
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量% E! v* h. e0 s# X& n# A8 d
Dim R As Double '小圆半径
: S& l. s8 O) Q* w j* R Dim O(2) As Double '坐标原点 q* E5 J/ p. {1 M* S ~
Dim O1(2) As Double '左上方小圆圆心0 L5 P4 n9 b; A4 j+ V5 _' g; u
Dim O2(2) As Double '右上方小圆圆心1 \( {) ?% b( _4 N
Dim O3(2) As Double '右下方小圆圆心
. s$ K( a) z( P) k6 G& V Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
; f/ u4 n0 P* T4 m: S Y1 = 10 '迭代运算边界条件, B/ e6 x* W) J' L
Y2 = 20- i+ y3 J. e$ y+ S
Do '计算合适的小圆圆心纵坐标: o8 t0 _! Q8 B/ M
Y = (Y1 + Y2) / 2' l3 Q$ Q4 ~$ s P4 {: c
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)1 s( c$ x: x8 u2 Y) Q
If B = 0 Then
7 ~6 Q0 M/ Z! o! C- B Exit Do! J: h3 j( W. e
ElseIf Y = Y1 Then
6 ^; Z) e# R8 @! g2 J B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
8 T9 W* e, F D2 H, t8 y If Abs(B1) < Abs(B) Then Y = Y2: Q5 O" {/ A2 m( X' W+ _
Exit Do
0 }( b) P4 `; Y ElseIf Y = Y2 Then
5 }$ E H4 j0 b4 Z. X# _1 r0 O B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)% W2 {; f) U: @+ l* v. m+ f
If Abs(B1) < Abs(B) Then Y = Y13 K0 m, i8 \" d/ i4 p7 O% T
Exit Do2 B) q1 g# [ D8 l
ElseIf B > 0 Then
) `5 d% [4 {2 o% r+ a Y1 = Y+ @) I+ @$ N, u1 B. b
Else8 {( G7 ^4 p0 Z+ h: V$ Z
Y2 = Y
- }; f9 V0 ~1 E! M! ~, Y End If
- x" ~+ ` W G. V8 N. s Loop
* M5 c5 c: Z- F# v6 z R = Y ^ 2 / 40 '小圆半径* |( v" @2 {) j$ r: }
O1(0) = R - 10
6 }& v) }9 @& B4 b O1(1) = Y '各点赋值
7 ^/ b1 o8 t; ~5 L O2(0) = Sqr(0.5) * (10 + R)
& S6 f5 s( J! P" V! Z+ t" q9 [ O2(1) = O2(0)
N, k0 S5 a+ ]: f: A: u7 Z4 Q: t O3(0) = O1(1)2 b) o6 L+ u5 ~0 d$ Z" t
O3(1) = O1(0)
% _" c$ v8 i+ ?3 B' h/ ]& a8 | P1(0) = -10
) c; k8 c7 F3 B% @ P1(1) = -103 O# S _) Q9 Z/ C8 m! i1 x
P2(0) = -10) ]- f! i( s0 p1 ]( e& b
P2(1) = 20
. _$ U1 X- _3 ~7 @ P3(0) = 20. o4 q* s: y) r$ D8 s& @
P3(1) = -10
G4 m e5 G7 N. r4 ~ With ThisDrawing2 G0 B! Z( A! \+ l8 i3 ?
.ModelSpace.AddLine P1, P2 '画直线; z. n9 ]8 Q1 V7 @
.ModelSpace.AddLine P1, P3% V; S( A Z5 Q0 N7 a* \: g
.ModelSpace.AddCircle O, 10 '画大圆
A1 m& U ^( P2 u" [ .ModelSpace.AddCircle O1, R '画三个小圆9 O' M: g A. A
.ModelSpace.AddCircle O2, R. G3 p6 ~: c3 k* }8 s
.ModelSpace.AddCircle O3, R
0 b `1 q% U5 x' g End With
6 o, |% c" `) Q/ k& A0 fEnd 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