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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：/ V3 u+ U" ?& p! v7 O! a/ u
: i; j( p0 [' {6 H
Sub A() '本程序以20圆的圆心为坐标原点8 d& S) n" |) O3 ?* F
Dim Y As Double '左上方小圆圆心纵坐标
/ _% N& b0 c( [) j9 W0 E Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量 ?$ `0 T6 q& H/ P* z7 ]2 l
Dim R As Double '小圆半径
" N8 C9 I$ b: ^ Dim O(2) As Double '坐标原点6 H0 F, c% y- q9 O' U9 S3 C
Dim O1(2) As Double '左上方小圆圆心
5 W. S W' k) K" m+ V1 z2 Y& a Dim O2(2) As Double '右上方小圆圆心" G+ S4 C4 z: Z
Dim O3(2) As Double '右下方小圆圆心& N5 n8 z4 ?* V+ k7 [% _
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
% B) D! {% N( G+ V7 l9 j% Y Y1 = 10 '迭代运算边界条件
5 m* b/ o/ r1 e* Q, c' T. W Y2 = 20! X: i, M9 `# ?! r( g1 ^% _: ~
Do '计算合适的小圆圆心纵坐标
1 ^$ \2 C. p, N! N* n1 B Y = (Y1 + Y2) / 2 b; h9 W+ D9 p# E9 X( ]% \
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)) u3 h& u% Y3 l8 A
If B = 0 Then$ U4 b1 b2 g, E& l3 s
Exit Do E' A0 N" X0 Y
ElseIf Y = Y1 Then
1 a$ E' c2 s7 [0 f, V& i0 ] l. L6 e B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
1 V! d" c5 i5 m2 `# o4 L2 O% F+ j If Abs(B1) < Abs(B) Then Y = Y2
4 S( P- K6 H, e. P9 S& t" D Exit Do( N# }( {7 J0 H5 @+ b# d9 _" L
ElseIf Y = Y2 Then, v7 G2 z5 }5 R& F
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2) L. j6 X% M% x
If Abs(B1) < Abs(B) Then Y = Y1
9 h1 J. Z6 E# d4 `) u0 U Exit Do
& F9 L- q+ y5 a$ k; g ElseIf B > 0 Then. _8 E# a- z$ ~
Y1 = Y! V' }# Z' l4 z! B, ~
Else& o) P) |( M) T! C. F* c" D* q, _
Y2 = Y
: J" A; _. p1 {6 D5 `! ^ End If
3 h; W( x1 V8 ]! ~+ ~8 k Loop. P/ T3 u4 u5 b- [
R = Y ^ 2 / 40 '小圆半径
5 t4 c5 G6 l1 j& _7 }/ ` O1(0) = R - 10( v; d. w% H* w7 @: {0 t% ^
O1(1) = Y '各点赋值
) L* _" g {2 ~5 E1 m9 M O2(0) = Sqr(0.5) * (10 + R)2 I+ z# ~ T5 _! t$ r$ o
O2(1) = O2(0)
( R: W0 E4 k9 U* T. W U4 u0 { O3(0) = O1(1)/ J u* n/ u* i9 c
O3(1) = O1(0)) S; L. X# p9 ~
P1(0) = -10& Q3 |* }- E' G) _9 e
P1(1) = -10
' y; S8 _* e% o P2(0) = -10. R, V0 K9 a: ?( r5 B
P2(1) = 20" t; H! `' m7 k* r
P3(0) = 20
8 N) T$ b9 v! t P3(1) = -10& g! [1 u" d& F( `' Z
With ThisDrawing: y- O, ^' L# D9 q; }( q" C: \9 w7 N
.ModelSpace.AddLine P1, P2 '画直线0 X+ s4 W6 B+ w* [1 j8 w% h. l$ p
.ModelSpace.AddLine P1, P30 m- x( a; v) S
.ModelSpace.AddCircle O, 10 '画大圆* X5 J6 B" | v" Y: ?
.ModelSpace.AddCircle O1, R '画三个小圆" y+ F3 G$ L; [- k
.ModelSpace.AddCircle O2, R
# D7 I2 U) M- E( p% q .ModelSpace.AddCircle O3, R5 d: O) J+ c" |# F6 a
End With4 `3 v( u2 o* S4 `
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