getting one image from several Images

[sam1]

hi,

I was wondering if someone give you an image e.g. http://www.google.co.uk/images/nav_logo29.png.. how do you get one image and include it in your page without using photoshop etc.

Say we have a pack of playing cards and all the cards are in one image how do you select one card from the whole thing and give it a name etc..

say we have 2,3,4,5,6 of spades in one image ....

hope i make sense

Thanks

[jugosoft]

Try with this:

public System.Drawing.Image LoadImagePiece(string imagePath, Rectangle desiredPortion)
{
   using (Image img = Image.FromFile(path))
   {
       Bitmap result = new Bitmap(desiredPortion.Width, desiredPortion.Height, PixelFormat.Format24bppRgb);
       using (Graphics g = Graphics.FromImage((Image)result))
       {
            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
            g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
            g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
            g.DrawImage(img, 0, 0, desiredPortion, GraphicsUnit.Pixel);
       }
       return result;
   }
}

[sam1]

Hi,

Can you explain please how you get those images using your method. I did some reseach and the term i m looking for is Image map in asp.net and html ...

[jugosoft]

Upper code is based on that graphics is drawn on bitmap and that is returned as image(result).

Example (Open new project and try following code to understand):

private void Form1_Load(object sender, EventArgs e)
        {
            // new Point(x, y) - coordinates of upper left point of the piece
            // new Size(x2, y2) - coordinate of bootom right point of the piece
            pictureBox1.Image = LoadImagePiece(@"imagePath", new Rectangle(new Point(0,0),new Size(100,100)));
        }

        public System.Drawing.Image LoadImagePiece(string imagePath, Rectangle desiredPortion)
        {
            using (Image img = Image.FromFile(imagePath))
            {
                Bitmap result = new Bitmap(desiredPortion.Width, desiredPortion.Height, PixelFormat.Format24bppRgb);
                using (Graphics g = Graphics.FromImage((Image)result))
                {
                    g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                    g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
                    g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
                    g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
                    g.DrawImage(img, 0, 0, desiredPortion, GraphicsUnit.Pixel);
                }
                return result;
            }
        }

If you don't understand, tell me to send you a project.