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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：" c1 _8 ] ?7 ]; y/ b! h
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Sub A() '本程序以20圆的圆心为坐标原点* [2 O9 B) c7 d3 F& |& Y8 }! X
Dim Y As Double '左上方小圆圆心纵坐标
* Y. A; b5 r& U2 c y4 e Dim Y1 As Double, Y2 As Double, B As Double, B1 As Double '迭代运算中间变量% @2 z" `% l; F1 D# ]+ a8 H
Dim R As Double '小圆半径) a3 i& ?% Z2 t {( c, ?6 z
Dim O(2) As Double '坐标原点
- O% ?4 z( R3 w o0 N& ^9 H Dim O1(2) As Double '左上方小圆圆心
; ]+ s! N# q7 Z Dim O2(2) As Double '右上方小圆圆心9 g$ q; S& Z. z9 H
Dim O3(2) As Double '右下方小圆圆心
: H3 L1 Y# n$ W2 C; H3 G' j Dim P1(2) As Double, P2(2) As Double, P3(2) As Double '直线起端点
5 k# v% i* @4 i8 q Y1 = 10 '迭代运算边界条件
- q" U. ~- Y0 T: [( O, {6 D6 J6 Q Y2 = 20
% R1 ?# M' @+ |2 r! R+ F8 l# F7 H, D Do '计算合适的小圆圆心纵坐标7 u8 N1 m3 E) @8 H6 o8 I F% k2 O
Y = (Y1 + Y2) / 2# j3 f/ k: u3 {$ ?; U2 j& t
B = -(2 + Sqr(2)) * Y ^ 4 - 40 * Sqr(2) * Y ^ 3 + 1600 * Y ^ 2 - 16000 * Sqr(2) * Y + 320000 + 160000 * Sqr(2)
+ b/ B- p! K1 x" j1 q9 x If B = 0 Then
) L& n5 }0 P& T0 }7 w5 x Exit Do
/ o N$ O% }/ [( a ElseIf Y = Y1 Then7 P: S. X; l5 i5 M" d
B1 = -(2 + Sqr(2)) * Y2 ^ 4 - 40 * Sqr(2) * Y2 ^ 3 + 1600 * Y2 ^ 2 - 16000 * Sqr(2) * Y2 + 320000 + 160000 * Sqr(2)
5 \: W$ G g2 F* Z& Y$ T$ H If Abs(B1) < Abs(B) Then Y = Y25 J' r6 A6 o- \) p. U0 S
Exit Do$ M/ U# L( T2 z) r% |) h. U
ElseIf Y = Y2 Then! z% B% H( Z, D ]
B1 = -(2 + Sqr(2)) * Y1 ^ 4 - 40 * Sqr(2) * Y1 ^ 3 + 1600 * Y1 ^ 2 - 16000 * Sqr(2) * Y1 + 320000 + 160000 * Sqr(2)0 \! k# Z+ @% ^8 b
If Abs(B1) < Abs(B) Then Y = Y1$ {% v6 {) k9 p! u
Exit Do
G+ W8 j( P5 o6 r0 q- R r ElseIf B > 0 Then0 { a1 Q' A* W: L" ]
Y1 = Y
2 e* K: `5 @: }. _! F2 T+ j" u/ s Else1 D6 K. F9 q4 H: o( m; b
Y2 = Y
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Loop* o3 j$ @. I- o- e2 w8 H/ t! P
R = Y ^ 2 / 40 '小圆半径* @7 O% I4 c2 p+ l* Z; v3 m
O1(0) = R - 108 H! V2 x: n) ^9 J% e) L6 {- U% l
O1(1) = Y '各点赋值0 k5 U+ n; n( ^+ W n- q1 `
O2(0) = Sqr(0.5) * (10 + R)* R8 B" Q2 P! J
O2(1) = O2(0)$ B1 Z: J' ~$ k3 @
O3(0) = O1(1)! Y( L) w' V! g6 P: F7 G M
O3(1) = O1(0)( M7 u N8 X6 x& n9 i* T
P1(0) = -10
* I. [8 F- T3 | P1(1) = -10
3 l6 m" r! P' {4 Y6 B( C P2(0) = -10
. h6 k) g0 i6 F2 n P2(1) = 20" D& X, U7 M6 ?% V5 p, m( w
P3(0) = 20
* u( `* A1 f$ r: K P3(1) = -10 Q; {! z* L' C3 c( F1 l
With ThisDrawing3 I! U$ Z7 k3 X3 @. P
.ModelSpace.AddLine P1, P2 '画直线1 O! g) V# H# m# }: d' S+ A( ?) l
.ModelSpace.AddLine P1, P3
6 F& P4 ~: t# T& Y) a; a0 Q .ModelSpace.AddCircle O, 10 '画大圆+ ~$ ~. [3 q8 X% ?; K
.ModelSpace.AddCircle O1, R '画三个小圆2 d+ h9 t9 W ^2 H- Y
.ModelSpace.AddCircle O2, R
4 c+ l0 Q7 C- n3 L; k .ModelSpace.AddCircle O3, R2 I: O1 C2 ?7 I" K
End With3 k* @0 x( \) Y! K& C5 b
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