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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：7 s" j0 F" U1 s6 F+ G6 Z- s% |
) Y5 W9 w: `5 b3 M, }
Sub A() '本程序以20圆的圆心为坐标原点- w# R# _) }0 P% A
Dim Y As Double '左上方小圆圆心纵坐标/ H- _4 Q7 ]5 B
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
/ z( g. C( K% R6 }4 x Dim R As Double '小圆半径( l# S0 t% U% D6 H: `: L
Dim O(2) As Double '坐标原点
# T/ f6 _5 s! j0 W1 X; P: D Dim O1(2) As Double '左上方小圆圆心4 Z Z7 Z3 N7 _& [
Dim O2(2) As Double '右上方小圆圆心' d7 Z* N; d$ b/ z7 D
Dim O3(2) As Double '右下方小圆圆心8 r7 p0 {, f- H# {* v. r
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
- c1 U, P. r9 | Y1 = 10 '迭代运算边界条件/ J6 i( G' x' W; Q( _% T# p
Y2 = 20
# t. T" ^- \, I/ h" r Do '计算合适的小圆圆心纵坐标
% N' c( |$ B9 m2 M. |& H9 ^8 d# J Y = (Y1 + Y2) / 2
2 t6 U" O$ ?3 l% t$ p: B B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)" J$ O! Z8 R' H/ l* O6 S( U
If B = 0 Then
5 G, u( [4 F( u5 j5 g4 d: { Exit Do
]( X- F' {1 h ElseIf Y = Y1 Then
2 R2 ?' N" C' I- N/ L* R8 Q3 v B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)+ x3 j9 Z* a. R) G+ n3 m- m3 T) M
If Abs(B1) < Abs(B) Then Y = Y2$ ~8 B( g, R5 b& A
Exit Do8 T8 z- f! p5 f) z- R' F( `3 X
ElseIf Y = Y2 Then
7 k. |( O( \/ B* p B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
# X: k1 J/ v) k- H1 E. z If Abs(B1) < Abs(B) Then Y = Y1' |3 B; Y; \, l
Exit Do
; B) x$ @/ j# j! K; d) |% u ElseIf B > 0 Then: D* X) I8 V5 ]1 r5 q
Y1 = Y7 Q* \' G7 i6 J" Z8 B2 Y7 r
Else% I' X4 W# l9 Y) x, {+ o
Y2 = Y
% ]0 D( h1 M# u2 C% w End If
. @9 o0 l* X9 C& f! ^ Loop
6 U8 O, @9 C7 l. g0 B R = Y ^ 2 / 40 '小圆半径( b$ B, ^4 ]6 N( C8 u
O1(0) = R - 10
, R) E8 q S+ @# @ O1(1) = Y '各点赋值
' l; B, h4 C" G. c O2(0) = Sqr(0.5) * (10 + R)! W& Y' P" m' Z
O2(1) = O2(0)/ K8 V4 g+ }2 A3 R) _5 L/ D
O3(0) = O1(1)
: i; e0 t* Z) O7 b. D5 V* q O3(1) = O1(0)
3 @2 v; O' B7 E P1(0) = -10
7 U! W- p# _: [" R/ \" s* j P1(1) = -10
* \. K- N1 q$ a. }, x P2(0) = -10
3 Q9 f$ Z" u' i4 @, [) M P2(1) = 20
/ k! b- ]; J. T# |% I! O P3(0) = 202 X+ s1 i3 N* `* E- q5 |- Y" m
P3(1) = -10/ I8 X0 E+ V5 W l) F6 i- B
With ThisDrawing( l4 t( k* d" `# J3 N/ X3 S0 F+ x
.ModelSpace.AddLine P1, P2 '画直线
$ V# x& O1 {5 y* U, U2 `. T4 X0 M, e .ModelSpace.AddLine P1, P3
) c, N+ `. F+ m) X9 l .ModelSpace.AddCircle O, 10 '画大圆
" m/ X* j2 m, i+ x! i0 R, t .ModelSpace.AddCircle O1, R '画三个小圆
& p8 [3 }1 e0 T. p' [: J .ModelSpace.AddCircle O2, R
2 C5 F7 u" d& Y1 H/ b( G9 b .ModelSpace.AddCircle O3, R3 z; {. O( I! Q
End With3 @ p; e4 Y$ q' t
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