Repeating the image in horizontal position ( C# Drawing )

Question

am using c#

am having a bitmap image like below

i want create a repeated image like below in horizontal position to get repeted continous image for some given width. i meant i like to draw repeated image like below from the above single bitmap (In simple words,in html we can have a image and set repeat X to get the repeated image.like that) how i can do this in c#.

so that i can draw a new bitmap in my application. How to do this.?

Answer 1

You can do it like this:

Bitmap myImage = new Bitmap(50, 50); //assuming you want you image to be 50,50
Bitmap originalImage = new Bitmap("myPngSource.png"); //original image to copy

using (Graphics g = Graphics.FromImage(myImage))
{
     g.DrawImage(originalImage, new Rectangle(0, 0, originalImage.Width, originalImage.Height));
}

MemoryStream ms = new MemoryStream();
myImage.Save(ms, ImageFormat.Png);

BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.StreamSource = ms;
bi.EndInit();

MyImageControl.Source = bi;

Or something like that, this is untested, and I just ripped it out of a little utility app I made a while ago. I hope it helps... You just need to change the width of the final image and do a loop over the g.DrawImage call incrementing the second parameter by the width of the originalImage. (i.e. if you want 5 repeats, do a for loop 5 times)

HTH --Mark

Answer 2

you don't need to create other bitmaps. it's a matter of drawing bitmap. in the place you darw the bitmap use drawImage method few times and increment the X position of the bitmap by its width. say 16 is the width of your image. make sure that bitmap has been initialized.

private void Form1_Paint(object sender, PaintEventArgs e)
{

    e.Graphics.DrawImage(bmp,x,y);
    e.Graphics.DrawImage(bmp,x+16,y);
    e.Graphics.DrawImage(bmp,x+32,y);
}

Answer 3

//x- integer value represents no. of times images to repeated horizontally
var destImage = new Bitmap(sourceImage.Width * x, sourceImage.Height, PixelFormat.Format32bppArgb);
using (TextureBrush brush = new TextureBrush(sourceImage, WrapMode.Tile))
using (Graphics g = Graphics.FromImage(destImage))
{
// Do your drawing here
g.FillRectangle(brush, 0, 0, destImage.Width, destImage.Height);
destImage.Save(@"C:\sourceImage.png", ImageFormat.Png); 
//mention path of image to save, if needed
}