Silverlight XPS Viewer in SL4, Support viewbox and viewport property

// crate 2 rect, one of viewbox and 2nd is viewport
var viewbox = new Rect(Convert.ToDouble(tempviewbox[0]), Convert.ToDouble(tempviewbox[1]),
                                Convert.ToDouble(tempviewbox[2]), Convert.ToDouble(tempviewbox[3]));

var viewport = new Rect(Convert.ToDouble(tempviewPort[0]), Convert.ToDouble(tempviewPort[1]),
                                 Convert.ToDouble(tempviewPort[2]), Convert.ToDouble(tempviewPort[3]));

Image img = new Image(); 
img.Source = bitmapImage; 
img.Stretch = Stretch.Fill;

//Set Image Height (1st Image Height + 2nd Image Height) and Change Left and Top
img.Height = viewport.Height + Convert.ToDouble(vp[3]);  
img.SetValue(Canvas.LeftProperty, Convert.ToDouble(vp[0])); 
img.SetValue(Canvas.TopProperty, Convert.ToDouble(vp[1])); 
          
//Get Parent element of this image
var parent = path.Parent as Canvas;
//Get index of Image element
var index = parent.Children.IndexOf(path);
parent.Children.Insert(index, img);

//Microsoft has provided support in Silverlight 4, 
//Glyphs has a property of FontSource by which we can assign any font file stream to that. 
//By this provision I was able to provide font files to XPS Viewer, 
//this saved any extra DLL to be downloaded separately.
    
//Get Font file stream from xps
var stream = Application.GetResourceStream(_streamResourceInfo, ConvertPartName(glyphs.FontUri.ToString())).Stream;
glyphs.FontSource = new FontSource(stream); //assign stream