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| 一个不需要第三方组件,可实现画简单图形的类 |
| 作者:佚名 来源:不详 编辑:shaiit |
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通常我们做统计图的时候需要借助组件来完成例如mschart,aspchart等 但是这个类不需要任何组件,而且使用方便 clsGraph.asp <% Class InteliGraph
Public Copyright, Developer, Name, Version, Web Public Maximum, BarWidth, BarColor, Orientation Private Items(), Cnt
Private Sub Class_Initialize() Copyright = "?2001 Ticluse Teknologi, All rights reserved." Developer = "James Lind雗" Name = "InteliGraph" Version = "1.0" Web = " http://www.intelidev.com" Cnt = 0 End Sub
Public Function Add( value ) ReDim Preserve Items( Cnt ) Items( Cnt ) = value data = Cnt Cnt = Cnt + 1 Add = data End Function
Public Function Build() If Cnt < 1 Then Exit Function If Len( Orientation ) = 0 Or LCase( Orientation ) = "horizontal" Then For Idx = LBound( Items ) To UBound( Items ) data = data & "<table height=" & BarWidth & " border=1 width=" & Maximum & " cellspacing=2>" & vbNewLine data = data & vbTab & "<tr><td width=" & Items(Idx) & " bgcolor=" & BarColor & " align=center><font size=-4> </font></td>" If Items(Idx) < Maximum Then data = data & "<td width=" & Maximum - Items(Idx) & "></td>" End If data = data & "</tr>" & vbNewLine & "</table>" & vbNewLine Next ElseIf LCase( Orientation ) = "vertical" Then data = "<table><tr>" & vbNewLine For Idx = LBound( Items ) To UBound( Items ) data = data & "<td><table width=" & BarWidth & " border=1 height=" & Maximum & " cellspacing=2>" & vbNewLine If Items(Idx) < Maximum Then data = data & "<tr><td height=" & Maximum - Items(Idx) & "></td></tr>" End If data = data & vbTab & "<tr><td height=" & Items(Idx) & " bgcolor=" & BarColor & " align=center><font size=-4> </font></td>" data = data & "</tr>" & vbNewLine & "</table>" & vbNewLine & "</td>" & vbNewLine Next data = data & "</tr></table>" & vbNewLine End If Build = data End Function
End Class %> 使用方法 这个类一共有四个属性 BarWidth(图片条的尺寸) BarColor*(图片条颜色) Maximum(图片条最大长度) Orientation(方向) 有两个函数 Add( value )添加图片条到图片中 Build()建立图片 事例: <!-- #include file=clsGraph.asp --> <% Public Const vert = "vertical" Public Const horz = "horizontal"
Dim Graph
Set Graph = New InteliGraph Graph.BarWidth = 10 Graph.BarColor = "blue" Graph.Maximum = 100 Graph.Orientation = horz
For Idx = 0 To 100 Step 25 Graph.Add( Idx ) Next
Response.Write( Graph.Build() ) %> |
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