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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：% D$ J' n( W: ]3 I6 N
7 U+ R- O0 S) g! ^3 D( ^
Sub A() '本程序以20圆的圆心为坐标原点
8 U# d4 l$ b2 t; o: R Dim Y As Double '左上方小圆圆心纵坐标* L7 B6 h. J k9 D1 R
Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量
" n( \: Q. X: n Dim R As Double '小圆半径
. |3 D2 X5 O' G! [ Dim O(2) As Double '坐标原点
1 |1 ]; l: {4 m3 ^ Dim O1(2) As Double '左上方小圆圆心/ |, C+ \; e8 M ?6 V7 e7 s8 k
Dim O2(2) As Double '右上方小圆圆心& E, S! G$ n1 W% t, M
Dim O3(2) As Double '右下方小圆圆心
$ @# u) n; G8 e! i6 | w Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点$ B L- v" \0 O3 a5 z
Y1 = 10 '迭代运算边界条件
/ |! x$ }1 u, Q; _ Y2 = 20
]* y/ Y) Z4 X$ S Do '计算合适的小圆圆心纵坐标8 k* ]# I) M; ^; W
Y = (Y1 + Y2) / 2
( y4 q6 o6 ^2 ]5 g! w B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)1 W1 r9 ]5 T9 y+ X0 P
If B = 0 Then, @: R% P* y/ c- |/ ~* K
Exit Do
" @, @" e( D% ?- C g ElseIf Y = Y1 Then
6 _, i5 y4 Q; S B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
) g8 R5 q6 K8 s% G If Abs(B1) < Abs(B) Then Y = Y2
+ r p. T) M7 ~# h Exit Do( I T& [1 V: a+ N
ElseIf Y = Y2 Then/ k1 c* O+ [' b: p6 W' r
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)
' r6 G1 w& h- Z. y If Abs(B1) < Abs(B) Then Y = Y1& W2 m4 p) o4 u9 F% N. P
Exit Do- w; h8 v N& C* e7 Z
ElseIf B > 0 Then
G/ c) D; ^; F8 y4 g Y1 = Y
# `! g% {4 \" ~) |+ A) T Else
i9 n4 r( g$ W [/ w Y2 = Y
+ a: ?7 |0 |# O! q" \* M2 d. B End If" a/ m9 S0 F- [" H- ]# D( P
Loop
5 q7 V7 I+ p$ |. {( ` A5 c8 t1 k R = Y ^ 2 / 40 '小圆半径
3 e: c2 b; Q! I a! D O1(0) = R - 10" I' |- p2 t4 I. w# Q$ P
O1(1) = Y '各点赋值
& i5 ?, o& x2 v. Z$ @' s O2(0) = Sqr(0.5) * (10 + R)/ |, U, ^4 s( ?
O2(1) = O2(0)- n! Q9 K8 |, c% J
O3(0) = O1(1)
, b' H0 W- {3 j7 C* I" y O3(1) = O1(0)0 |2 `# n: S9 U; r/ J+ k# \
P1(0) = -10
R, W: u: v8 O- E! b P1(1) = -106 S9 e" l1 u$ \
P2(0) = -10
; m) i3 q1 _7 }6 f8 M1 e5 y* m7 r7 Z P2(1) = 20
4 |8 m4 E F r N P3(0) = 20
6 q' ~. {- ?- j# }2 [ P3(1) = -10
3 W6 \! A" | N; l s, v9 _5 _ With ThisDrawing
( \6 N, `' @: j+ d# i( ]0 w- w2 ` .ModelSpace.AddLine P1, P2 '画直线% p# ?8 O8 n: ^: H+ ` l& N
.ModelSpace.AddLine P1, P3
4 N; y8 X& o( T6 g ]- D1 M. _ .ModelSpace.AddCircle O, 10 '画大圆- q" ?$ L6 n6 h+ k5 ]
.ModelSpace.AddCircle O1, R '画三个小圆
7 M. _4 A4 q" u$ _* v3 F8 | .ModelSpace.AddCircle O2, R% S; z& l- q, {3 V) D
.ModelSpace.AddCircle O3, R
$ q$ e4 S" b3 ^- M End With' `- ~. I: ]) O: _. H
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