56   virtual void Execute()=0;
 
abstract base class for most VTK objects 
 
#define VTKPARALLELCORE_EXPORT
 
a process that can be launched by a vtkMultiProcessController 
 
virtual void PrintSelf(ostream &os, vtkIndent indent)
 
a simple class to control print indentation 
 
vtkMultiProcessController * Controller
 
Multiprocessing communication superclass.