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

 Program:   Visualization Toolkit
 Module:    vtkPUniformGridGhostDataGenerator.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 VTKPUNIFORMGRIDGHOSTDATAGENERATOR_H_
#define VTKPUNIFORMGRIDGHOSTDATAGENERATOR_H_

#include "vtkFiltersParallelGeometryModule.h" // For export macro
#include "vtkPDataSetGhostGenerator.h"

class vtkMultiBlockDataSet;
class vtkIndent;
class vtkPStructuredGridConnectivity;

class VTKFILTERSPARALLELGEOMETRY_EXPORT vtkPUniformGridGhostDataGenerator:
  public vtkPDataSetGhostGenerator
{
public:
  static vtkPUniformGridGhostDataGenerator* New();
  vtkTypeMacro(vtkPUniformGridGhostDataGenerator,vtkPDataSetGhostGenerator);
  void PrintSelf(ostream& os, vtkIndent indent);

protected:
  vtkPUniformGridGhostDataGenerator();
  virtual ~vtkPUniformGridGhostDataGenerator();

  void RegisterGrids( vtkMultiBlockDataSet *in );

  void ComputeOrigin(vtkMultiBlockDataSet *in);

  void ComputeGlobalSpacing(vtkMultiBlockDataSet *in);


  void CreateGhostedDataSet(
      vtkMultiBlockDataSet *in, vtkMultiBlockDataSet *out );


  virtual void GenerateGhostLayers(
      vtkMultiBlockDataSet *in, vtkMultiBlockDataSet *out);

  double GlobalSpacing[3];
  double GlobalOrigin[3];
  vtkPStructuredGridConnectivity *GridConnectivity;

private:
  vtkPUniformGridGhostDataGenerator(const vtkPUniformGridGhostDataGenerator&); // Not implemented
  void operator=(const vtkPUniformGridGhostDataGenerator&); // Not implemented
};

#endif /* VTKPUNIFORMGRIDGHOSTDATAGENERATOR_H_ */