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/*=========================================================================

 Program:   Visualization Toolkit
 Module:    vtkAMRUtilities.h

 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
 All rights reserved.
 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

 This software is distributed WITHOUT ANY WARRANTY; without even
 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the above copyright notice for more information.

 =========================================================================*/
#ifndef VTKAMRUTILITIES_H_
#define VTKAMRUTILITIES_H_

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkObject.h"
#include <vector> // For C++ vector

// Forward declarations
class vtkFieldData;
class vtkOverlappingAMR;
class vtkUniformGrid;

class VTKCOMMONDATAMODEL_EXPORT vtkAMRUtilities : public vtkObject
{
public:
  // Standard Routines
  vtkTypeMacro(vtkAMRUtilities,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent );


  static void StripGhostLayers(
      vtkOverlappingAMR *ghostedAMRData,
      vtkOverlappingAMR *strippedAMRData);

  static bool HasPartiallyOverlappingGhostCells(vtkOverlappingAMR *amr);

  static void BlankCells(vtkOverlappingAMR* amr);

protected:
  vtkAMRUtilities() {}
  ~vtkAMRUtilities() {}


  static void CopyFieldsWithinRealExtent(
      int realExtent[6],
      vtkUniformGrid *ghostedGrid,
      vtkUniformGrid *strippedGrid);


  static void CopyFieldData(
      vtkFieldData *target, vtkIdType targetIdx,
      vtkFieldData *source, vtkIdType sourceIdx );


  static vtkUniformGrid* StripGhostLayersFromGrid(
      vtkUniformGrid* grid, int ghost[6]);

  static void BlankGridsAtLevel(vtkOverlappingAMR* amr, int levelIdx,
                          std::vector<std::vector<unsigned int> >& children,
                          const std::vector<int>& processMap);
private:
  vtkAMRUtilities(const vtkAMRUtilities&); // Not implemented
  void operator=(const vtkAMRUtilities&); // Not implemented
};

#endif /* VTKAMRUTILITIES_H_ */