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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：; S. H# w( C$ q3 ?% U5 x
. y& u- W: O1 }+ u+ k
Sub A() '本程序以20圆的圆心为坐标原点) f* K8 t2 q. X5 c2 p; U
Dim Y As Double '左上方小圆圆心纵坐标
# n, O5 |! U# Q# `3 N) C Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
. c* C9 U% O) | Dim R As Double '小圆半径
7 b$ k4 m2 b5 W8 I1 t7 i3 c Dim O(2) As Double '坐标原点
4 a) t9 ]9 I# b- { Dim O1(2) As Double '左上方小圆圆心; `8 y0 ^/ F* n" u
Dim O2(2) As Double '右上方小圆圆心1 t: e( R+ @! G" B
Dim O3(2) As Double '右下方小圆圆心* z- }6 a2 V: p* U$ E3 D) z! ?
Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点* [" y0 k0 H* G7 f) l* n
Y1 = 10 '迭代运算边界条件8 B5 S3 G' m' l
Y2 = 20
, H; z' p L: k Do '计算合适的小圆圆心纵坐标
& D9 k! [7 ]4 q1 `7 z- r- W6 o Y = (Y1 + Y2) / 2& c$ U) {8 z$ n' S' P
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)6 I& k# f w+ j N1 e# n# l9 T
If B = 0 Then; Q4 q/ w0 e& X6 \ O# G7 x( f K& d
Exit Do
- n5 Z5 h- k; \ p ElseIf Y = Y1 Then: K/ \) T" O- \6 u! F% D" y' i" Q
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)( q& a0 b' k5 W$ U
If Abs(B1) < Abs(B) Then Y = Y2
: E6 ?+ C9 d/ A. ~& V0 U Exit Do
( V! \' i4 x/ N2 K# R9 P4 n ElseIf Y = Y2 Then
$ v# z0 ~) l+ D9 t( k4 }9 d B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
# ?& b/ H; F+ ?8 ` If Abs(B1) < Abs(B) Then Y = Y1. U% S6 D. v( A8 t/ V7 v G
Exit Do
: L. }# B& K* ~' C1 I ElseIf B > 0 Then
, f2 r& {: X; k* @. s' d Y1 = Y
5 g! Q( T7 q# Y8 J+ c Else, A( }* J! v! S9 o0 C
Y2 = Y6 L @; e% O! c# ]
End If
1 E. v2 b: ^' s/ ?) z+ }8 L- @ Loop
' S ?- k9 |/ C, s R = Y ^ 2 / 40 '小圆半径9 M% E/ [3 ]' R" B8 h
O1(0) = R - 10: R% c! U+ s+ b3 i, t2 r
O1(1) = Y '各点赋值
4 o3 @6 Z- _5 f( q7 Q+ O6 c6 h6 x O2(0) = Sqr(0.5) * (10 + R)4 H0 q( w3 f6 ^- L- h2 r
O2(1) = O2(0)8 E3 M7 k: }* o) T
O3(0) = O1(1)
8 M: [) t! Z; s/ _ O3(1) = O1(0)/ v! `% } b2 a, [+ N3 x
P1(0) = -10" L& s: ?0 j; E. Y/ c: b. E1 o
P1(1) = -10
$ D* k* d. J4 r) \( Q: D! B P2(0) = -10
3 M% Z5 S7 N3 b5 e! A P2(1) = 20
' l- R+ q5 I0 G. M5 F& u/ o P3(0) = 20
# I# p0 i# `2 d* e- l* j1 }: P/ X. b P3(1) = -10
9 G: @" |8 m6 |' c With ThisDrawing
) J: r( A+ [: z' `5 l .ModelSpace.AddLine P1, P2 '画直线
4 V$ A: w7 T5 {8 f .ModelSpace.AddLine P1, P36 w- \0 M% C( A4 c& y' j
.ModelSpace.AddCircle O, 10 '画大圆
; `: p0 c3 ^* h. I# e' E .ModelSpace.AddCircle O1, R '画三个小圆
" P" }7 M9 e% g; C0 P .ModelSpace.AddCircle O2, R) x& ]; f+ `; S- P/ z! _7 b
.ModelSpace.AddCircle O3, R
6 S# ]2 G! u4 w9 X: U) n End With7 ~0 X, D& z" M6 v* K# ^- 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