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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：- L" c$ ^2 O: {
: |5 Z6 w" T+ p2 H( TSub A() '本程序以20圆的圆心为坐标原点
( \3 @- X- E4 f( X Dim Y As Double '左上方小圆圆心纵坐标$ m' Q0 y% H* y- a
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
5 @1 c# g+ @1 o7 U. S1 W4 X Dim R As Double '小圆半径
" G0 S+ F- c# D. a$ v Dim O(2) As Double '坐标原点" i3 `% h: j1 i" c" R4 k/ u* ~
Dim O1(2) As Double '左上方小圆圆心& r0 U: D; u/ [6 d6 {
Dim O2(2) As Double '右上方小圆圆心5 g2 A, x# |. T) |/ u2 ]
Dim O3(2) As Double '右下方小圆圆心6 A$ L, C3 J* q, }
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
" t9 D( h/ q) @% w" C) c Y1 = 10 '迭代运算边界条件; i/ Q5 |. X( h4 j1 J% X
Y2 = 20, F6 H0 D/ l- p2 @9 w/ c7 c
Do '计算合适的小圆圆心纵坐标2 ^# a/ I: G7 d
Y = (Y1 + Y2) / 2
9 W' _& Y; ^$ o+ n B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)" f9 H. i- q' x4 u
If B = 0 Then
/ U" ^: x5 Z8 w& B8 D Exit Do: q8 t) _0 b) t4 x8 ^: T6 M5 l
ElseIf Y = Y1 Then
X' m- I- J4 Y5 F/ J8 W" \6 [ B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)+ F r) c7 r0 V1 H9 G ]
If Abs(B1) < Abs(B) Then Y = Y2* u7 L4 o" J4 t W1 X* M- X2 w
Exit Do
: p, v. F h& J9 I% e! C ElseIf Y = Y2 Then4 d7 P7 K( w6 S' b6 B3 O
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
& M1 ^6 ?7 P4 I; { If Abs(B1) < Abs(B) Then Y = Y1) k& d+ O2 J" J$ X; W6 N7 v/ {* p
Exit Do
' Z1 d4 _8 p: J ElseIf B > 0 Then
+ e. }* x* q- x9 ~& W# g" M5 ~ Y1 = Y- o8 ^7 `& I) \8 j1 _
Else
/ r; t8 |6 D! s6 t) I5 a Y2 = Y. H3 c- x+ I. u8 Y" s
End If
& D% Y& D5 P9 r& p* A, p q Loop
- g0 t2 a' K* C" m) X R = Y ^ 2 / 40 '小圆半径! X. y$ O9 m+ f
O1(0) = R - 103 O- m8 T$ _: \. E% P2 P0 s* F
O1(1) = Y '各点赋值
1 ~6 k( Q( U$ @& W# v O2(0) = Sqr(0.5) * (10 + R)
: _9 I) L+ C# G5 F5 S, F! Q6 p7 u- s O2(1) = O2(0)
- {& {( T; u3 i O3(0) = O1(1)
$ C0 O$ y% q) o( {, q O3(1) = O1(0)( n( j) F Q; g: F4 i% L
P1(0) = -104 k0 s: R: B$ Y. s7 X- T
P1(1) = -10
& q7 w, e8 D- a2 c0 g) Q P2(0) = -10
3 z6 m0 k# d+ q! i. h& q1 U' I P2(1) = 20- R% X$ S, O) G# p0 H$ w8 z
P3(0) = 20
- ~8 |% A2 L. g; Z P3(1) = -10
0 _0 G9 W' h& N; B9 o1 z With ThisDrawing- R( I! m" V! V5 K
.ModelSpace.AddLine P1, P2 '画直线1 u9 L$ Z" }+ O: _; K. [9 v1 J
.ModelSpace.AddLine P1, P3
# c% ~( a, `! J' N/ D .ModelSpace.AddCircle O, 10 '画大圆" e7 r j1 y& ?) n3 `
.ModelSpace.AddCircle O1, R '画三个小圆% x% ]9 [. L, Z4 _$ B7 k1 i
.ModelSpace.AddCircle O2, R
* V7 L$ C% x2 M .ModelSpace.AddCircle O3, R
* V" a9 p! h7 i; ^ End With
9 a; z) |; R) }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