Hello i'm combining lots of tiles into one big image. Folloging this guide: http://www.switchonthecode.com/tutorials/combining-images-with-csharp it works fine but just if the size of the final image isn't too big (otherwise I get "Parameter is not valid." error).. So googling I read I'd better use WPF Imaging classes, but I can't find a way to do it...
Could someone point me to a tutorial or tell me ho to do so?
Thanks!!
I know this is is an old question but just encountered this problem with WPF and none of the solutions I found directly answered the question but the below method merges a List of BitmapSource's so the output image is the max dimensions of the images in the list:
public static BitmapSource MergeImages(IList<BitmapSource> bmpSrcList) {
int width = 0,height = 0,dpiX = 0,dpiY = 0;
// Get max dimensions and dpi of the images
foreach (var image in bmpSrcList) {
width = Math.Max(image.PixelWidth,width);
height = Math.Max(image.PixelHeight, height);
dpiX = Math.Max((int)image.DpiX, dpiX);
dpiY = Math.Max((int)image.DpiY, dpiY);
}
var renderTargetBitmap = new RenderTargetBitmap(width, height, dpiX, dpiY, PixelFormats.Pbgra32);
var drawingVisual = new DrawingVisual();
using (var drawingContext = drawingVisual.RenderOpen()) {
foreach (var image in bmpSrcList) {
drawingContext.DrawImage(image, new Rect(0, 0, width, height));
}
}
renderTargetBitmap.Render(drawingVisual);
return renderTargetBitmap;
}
The first answer here should give you an idea... Basically creating a canvas that is the combined size and then positioning the 'tiles' appropriately.
