Page

ASP.NET - How to draw a line connecting two Point structures

<%@ Page Language="C#" AutoEventWireup="true" %>  
<%@ Import Namespace="System.Drawing" %>  
<%@ Import Namespace="System.Drawing.Text" %>  
<%@ Import Namespace="System.Drawing.Drawing2D" %>  
<%@ Import Namespace="System.Drawing.Imaging" %>  
  
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<script runat="server">  
    protected void Button1_Click(object sender, System.EventArgs e)  
    {  
        Bitmap bmp = new Bitmap(500,250);  
        Graphics g = Graphics.FromImage(bmp);  
        g.Clear(Color.MidnightBlue);  
  
        Pen snowPen = new Pen(Color.Snow, 2);  
  
        Point p1 = new Point(50,25);  
        Point p2 = new Point(350,175);  
  
        g.DrawLine(snowPen,p1,p2);  
        //g.DrawLine(Pen, Point, Point);  
  
        String path = Server.MapPath("~/Image/DrawLine.jpg");  
        bmp.Save(path,ImageFormat.Jpeg);  
  
        Image1.ImageUrl = "~/Image/DrawLine.jpg";  
        g.Dispose();  
        bmp.Dispose();  
    }  
</script>  
  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head id="Head1" runat="server">  
    <title>asp.net graphics (GDI+) - how to draw a line connecting two Point structures</title>  
</head>  
<body>  
    <form id="form1" runat="server">  
    <div>  
        <h2 style="color:DodgerBlue; font-style:italic;">  
            How to draw a line connecting two Point  
            <br />structures in asp.net graphics (GDI+)  
            <br />Graphics.DrawLine Method (Pen, Point, Point)  
        </h2>  
        <hr width="500" align="left" color="DeepSkyBlue" />  
        <asp:Image  
             ID="Image1"  
             runat="server"  
             />  
        <br />  
        <asp:Button   
            ID="Button1"  
            runat="server"  
            OnClick="Button1_Click"  
            Text="DrawLine"  
            Height="45"  
            Font-Bold="true"  
            ForeColor="DodgerBlue"  
            />  
    </div>  
    </form>  
</body>  
</html>  

No comments:

Post a Comment