Create a filter that takes an AMR dataset and refines/coarsens it to a specified level
The VTK AMR datasets (vtkOverlappingAMR and vtkNonOverlappingAMR) are still somewhat problematic to deal with in general settings. To get around this it would be good to have a filter that produced a composite dataset or vtkImageData (not sure which would be better at this point) for a specified AMR level. This may already be available for vtkOverlappingAMR but doesn't appear to be available for vtkNonOverlappingAMR.