[vtkusers] Can't move vtkAxesActor with vtkInteractorStyleTrackballActor

[David Doria]

If I use vtkInteractorStyleTrackballActor:

  vtkSmartPointer<vtkInteractorStyleTrackballActor> style =
      vtkSmartPointer<vtkInteractorStyleTrackballActor>::New(); //like paraview

  renderWindowInteractor->SetInteractorStyle( style );

I can move/rotate a normal actor:

  vtkSmartPointer<vtkConeSource> coneSource =
vtkSmartPointer<vtkConeSource>::New();
  vtkSmartPointer<vtkPolyDataMapper> coneMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
  coneMapper->SetInput(coneSource->GetOutput());
  vtkSmartPointer<vtkActor> coneActor = vtkSmartPointer<vtkActor>::New();
  coneActor->SetMapper(coneMapper);
  renderer->AddActor(coneActor);

But I can't move/rotate an AxesActor:

vtkSmartPointer<vtkAxesActor> axes = vtkSmartPointer<vtkAxesActor>::New();
renderer->AddActor(axes);

Anyone know why this might be?

I tried setting:
axes->DragableOn();

but it appears 'true' is the default value, so that didn't change anything.

Thanks,

David