zoomin out image problem

Oct 20, 2009 at 3:42 AM

I set ScaleTransform3D.center to point A on the image to enlarge. Then move the mouse as well as amend ScaleTransform3D.center of the mouse on the corresponding image point B, this time the mouse position and image point B does not correspond. How can I do to make the mouse and point B correspond,  when revised ScaleTransform3D.center