
<% @Import Namespace="System.Drawing" %>
<% @Import Namespace="System.Drawing.Imaging" %>
<script language="c#" runat="server">

  void Serpinski(int width, int height, int iterations)
  {
    // create the Bitmap
    Bitmap bitmap = new Bitmap(width, height);

    // Create our triangle's three Points
    Point top = new Point(width / 2, 0),
          bottomLeft = new Point(0,height),
          bottomRight = new Point(width, height);

    // Now, choose our starting point
    Point current = new Point(width / 2, height / 2);

    // Iterate iterations times
    Random rnd = new Random();
    for (int iLoop = 0; iLoop < iterations; iLoop++)
    {
       // draw the pixel
       bitmap.SetPixel(current.X, current.Y, Color.Red);

       // Choose our next pixel
       switch (rnd.Next(3))
       {
          case 0:
             current.X -= (current.X - top.X) / 2;
             current.Y -= (current.Y - top.Y) / 2;
             break;

          case 1:
             current.X -= (current.X - bottomLeft.X) / 2;
             current.Y -= (current.Y - bottomLeft.Y) / 2;
             break;

          case 2:
             current.X -= (current.X - bottomRight.X) / 2;
             current.Y -= (current.Y - bottomRight.Y) / 2;
             break;
       }
    }

    // Save the image to the OutputStream
    Response.ContentType = "image/jpeg";
    bitmap.Save(Response.OutputStream, ImageFormat.Jpeg);

    // clean up...
    bitmap.Dispose();
  }


  void Page_Load(Object senter, EventArgs e)
  {
    Serpinski(200,200, 10000);
  }
</script>