repeat image c#

Question

Hi folks., i have an image with certain pattern.. i need to repeat it in another image using GDi? is there any method to do in GDI?

Answer 1

There's no function to paint a particular image as a "pattern" (painting it repeatedly), but it should be pretty simple to do:

public static void FillPattern(Graphics g, Image image, Rectangle rect)
{
    Rectangle imageRect;
    Rectangle drawRect;

    for (int x = rect.X; x < rect.Right; x += image.Width)
    {
        for (int y = rect.Y; y < rect.Bottom; y += image.Height)
        {
            drawRect = new Rectangle(x, y, Math.Min(image.Width, rect.Right - x),
                           Math.Min(image.Height, rect.Bottom - y));
            imageRect = new Rectangle(0, 0, drawRect.Width, drawRect.Height);

            g.DrawImage(image, drawRect, imageRect, GraphicsUnit.Pixel);
        }
    }
}

Answer 2

In C#, you can create a TextureBrush that'll tile your image wherever you use it. Something like

TextureBrush brush = new TextureBrush(yourImage);
brush.WrapMode = WrapMode.Tile;

Then use the brush to fill an area where you want the image to be tiled. (This example fills the whole image.)

Graphics g = Graphics.FromImage(someOtherImage);
g.FillRectangle(brush, 0, 0, someOtherImage.Width, someOtherImage.Height);

Note, if you want some control over how the image is tiled, you're gonna need to learn a bit about transforms.

Almost forgot (actually i did forget for a bit)...you'll need to make sure System.Drawing and System.Drawing.Drawing2D are imported in order for the code above to work.