public Viewbox Transform( Transform transformation, bool updateLastReadViewbox )
Transform method transforms all the coordinates, sizes and other values in the last read Viewbox with using transformation.
The method is using TrueTransform to do the transformation. Check the class info to get more information.
If the method is called with setting updateLastReadViewbox parameter to true, than the LastReadViewbox is also changed. This allows calling GetXaml method and get the xaml with the transformed objects.