[vtkusers] Please, help!

[Anastasia Mironova]

Hello,
I am adding isosurafces and cross sections to a vtkPanel in Java, 
which are instances of vtkActor and vtkImageActor classes, 
consequently. For some reason the method GetActors that I apply to the 
renderer only returns objects of the vtkActor class of that panel and 
does not return/recognize any of the cross sections, which is quite 
inconvenient when I am trying to clear the panel since all the cross 
sections turn out to be unremovable this way. If you could please give 
any advise on how to fix this I would really appreciate it.
Anastasia