public static Bitmap ToImage(RadMap map, MapLayer layer)
        {
            var mapElement = map.MapElement;

            var bitmap = new Bitmap((int)mapElement.ViewportInPixels.Size.Width, (int)mapElement.ViewportInPixels.Height);
            var g = new RadGdiGraphics(Graphics.FromImage(bitmap));

            foreach (MapVisualElement element in mapElement.Providers[0].GetContent(mapElement))
            {
                element.Paint(g, mapElement);
            }

            object state = g.SaveState();

           //comment this line
           // g.TranslateTransform(-mapElement.ViewportInPixels.X, -mapElement.ViewportInPixels.Y);

            layer.Paint(g, mapElement);

            g.RestoreState(state);

            return bitmap;
        }