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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：
8 Z0 a2 G% t3 h) O: \; z) A 8 f3 S; C5 B* h$ R/ u0 G% A
Sub A() '本程序以20圆的圆心为坐标原点
/ c/ |2 z+ I/ e. v Dim Y As Double '左上方小圆圆心纵坐标
" V! t- U% r' L8 v8 S( l Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
7 D6 u7 o: [. I D- c1 G* L7 _: ` Dim R As Double '小圆半径( e, w' h$ M! S2 T* n* D
Dim O(2) As Double '坐标原点- ^: x8 k" Y, K! c, c
Dim O1(2) As Double '左上方小圆圆心 ]0 @/ d4 Z& D& E6 u% d
Dim O2(2) As Double '右上方小圆圆心
. R0 M+ D5 I+ o; f1 ?4 J! u Dim O3(2) As Double '右下方小圆圆心
2 D6 Q% Z. j2 d6 u& ^- c Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
: j E* w$ B$ n# B2 |/ Y9 b- u Y1 = 10 '迭代运算边界条件
2 w6 k# P/ J. @ a$ } Y2 = 20& s* L2 `5 q2 I
Do '计算合适的小圆圆心纵坐标
4 m& ~- B5 P8 `4 V. S0 I, F Y = (Y1 + Y2) / 2
0 C; D, c2 e+ }3 x% r- \ B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2), F: G8 ~1 V3 b+ ^6 V( B
If B = 0 Then
* ?' D/ R" {0 Y* x! i# C4 a: J Exit Do8 i# v3 O% q% \' U% n
ElseIf Y = Y1 Then
* z) n0 D! Z2 M: L$ T' Q B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
( q" w# ]- L! L) j* |: Q! q If Abs(B1) < Abs(B) Then Y = Y2 R/ G) `% D R% O% I3 e
Exit Do
* n |. g+ W3 { ElseIf Y = Y2 Then
! e5 p" g* |4 ~3 s% {7 ] B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
: d5 |" S- ?7 l9 A4 k& C. O( N4 \ If Abs(B1) < Abs(B) Then Y = Y15 a# K2 ^6 O3 ^0 o S) }
Exit Do2 N$ E4 \8 L; l+ V R2 ~
ElseIf B > 0 Then9 C% F/ } ]( T7 ?( q& h
Y1 = Y: D# }2 I5 W. ?6 X' k
Else+ `: ?2 ^% K u* A% @3 I
Y2 = Y
: `0 Y7 E: k3 f" n* R2 ~# m1 { End If
- p, p, h* _+ K Loop% O( [$ h0 Y& n0 f* Q
R = Y ^ 2 / 40 '小圆半径9 w8 A n* r' d. u7 x) u3 M6 E
O1(0) = R - 10
9 S1 s- P* x" i4 a O1(1) = Y '各点赋值
' ^0 b5 Y: v+ V0 u2 y5 @ O2(0) = Sqr(0.5) * (10 + R)7 {& M9 e' r$ J- M. N) y; `
O2(1) = O2(0)" B" f, v. _8 W# I
O3(0) = O1(1)
/ L# t; M. Y+ b7 t# |8 [/ | d! ? O3(1) = O1(0)
1 l# k D7 {8 ~5 t P1(0) = -10
* P P+ ]8 q/ W% j P1(1) = -10
9 S1 x1 c8 u0 e" H P2(0) = -10
% I ~" n) n1 S J P2(1) = 20
9 w/ ]! k7 t8 B) k( x P3(0) = 208 B7 E! M! M5 f4 X
P3(1) = -104 f- E4 w" k$ o+ K6 F3 ^$ M
With ThisDrawing
+ c0 B7 ~$ w* L% \ .ModelSpace.AddLine P1, P2 '画直线/ }; V7 Q% D3 k7 `0 G
.ModelSpace.AddLine P1, P3- f7 |" v3 n" u+ p# u
.ModelSpace.AddCircle O, 10 '画大圆6 J+ Y" R# r. }0 {$ \& q
.ModelSpace.AddCircle O1, R '画三个小圆
$ H" e k; p Y .ModelSpace.AddCircle O2, R+ F; s1 a) r# b) ], s; c
.ModelSpace.AddCircle O3, R+ Y# ?' _: [, j* q' Y" v
End With4 S! e) u& Y& t4 l3 i5 S. d
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