Build a Bitmap filling it with a smaller image.

Question

Hello.

I'm developing a Windows Mobile application with C# and .NET Compact Framework.

I want to fill a Bitmap with an image that it's smaller. To fill this new Bitmap I want to repeat the image horizontally and vertically until the bitmap it is completely fill.

How can I do that?

Thank you!

Answer 1

Try this:

for(int y = 0; y < outputBitmap.Height; y++) {
    for(int x = 0; x < outputBitmap.Width; x++) {
        int ix = x % inputBitmap.Width;
        int iy = y % inputBitmap.Height;
        outputBitmap.SetPixel(x, y, inputBitmap.GetPixel(ix, iy));
    }
}

Answer 2

Use Grapics.FromImage on your target to get a Graphics object, then use the DrawImage method on that resulting Graphics object to paint in your tile. repeat for rows and columns as necessary based on the size of the tile and the destination bitmap (i.e. offset x, y by the size of the tile and repeat).