[vtkusers] vtkImagePlaneWidget help!

[juke75 at libero.it]

Hi all,
I have a problem: I'm using vtkImagePlaneWidget in my medical application, and it all works great, but when I rotate the planes, they are not bounded anymore, and I can drag them everywhere! I'd like to keep them inside the bounding box, just like the vtkImplicitPlaneWidget does!
Anyone can work it out?
Please, help me!

Thanks in advance,

Gianluca.