[vtkusers] Java GetActors()

[Brian Henz]

I just downloaded the new precompiled Windows and the vtk.tar.gz files for 
Unix.  After Installing and compiling I find that GetActors() returns null.  
Here's an example of what I do:

vtkPanel renPanel = new vtkPanel();
...
  Add Some Actors
...
// Now to remove actors
vtk.vtkActorCollection actorcollection =
          renPanel.GetRenderer().GetActors();

// But this next line fails because actorcollection == null.
// There are actors in the renderer because I can see them and
// If i know the actor's name I can delete it.  The same
// code worked with the 04/04/2001 version.
actorcollection.InitTraversal();


Any ideas would be greatly appreciated.  Also, on an SGI machine with JDK 
1.3 the vtkPanel does not show up.  (I had this a long time ago but was 
kinda fixed recently when vtkPanel created a seperate Render window.)

Thanks,
     Brian
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