在web窗体上画曲线.txt

c#的知识类库

可以利用SVG或VML来实现  
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简单的说可以绘制以后把它村为一个gif然后显现出来  
<%@  Page  ContentType  =  "image/gif"%>  
<%@  Import  Namespace  =  "System.Drawing"  %>  
<%@  Import  Namespace  =  "System.Drawing.Imaging"  %>  
 
<Script  Runat  =  "Server">  
 
Sub  Page_Load  
 
Dim  objBitmap  As  Bitmap  
Dim  objGraphics  As  Graphics  
 
objBitmap  =  New  Bitmap(200,  200)  
objGraphics  =  Graphics.FromImage(objBitmap)  
 
objGraphics.DrawLine(new  Pen(Color.Red),  0,  0,  200,  200)  
 
objBitmap.Save(Response.OutputStream,  ImageFormat.Gif)  
 
objBitmap.Dispose()  
objGraphics.Dispose()  
End  Sub  
 
</Script>