vtkPUnstructuredGridGhostCellsGenerator.h

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

  Program:   Visualization Toolkit
  Module:    vtkPUnstructuredGridGhostCellsGenerator.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 vtkPUnstructuredGridGhostCellsGenerator_h
#define vtkPUnstructuredGridGhostCellsGenerator_h

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

class vtkMultiProcessController;
class vtkUnstructuredGrid;

class VTKFILTERSPARALLELGEOMETRY_EXPORT vtkPUnstructuredGridGhostCellsGenerator:
  public vtkUnstructuredGridAlgorithm
{
  vtkTypeMacro(vtkPUnstructuredGridGhostCellsGenerator, vtkUnstructuredGridAlgorithm);

public:
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkPUnstructuredGridGhostCellsGenerator *New();


  void SetController(vtkMultiProcessController *c);
  vtkGetObjectMacro(Controller, vtkMultiProcessController);


  vtkSetMacro(UseGlobalPointIds, bool);
  vtkGetMacro(UseGlobalPointIds, bool);
  vtkBooleanMacro(UseGlobalPointIds, bool);


  vtkSetStringMacro(GlobalPointIdsArrayName);
  vtkGetStringMacro(GlobalPointIdsArrayName);

protected:
  vtkPUnstructuredGridGhostCellsGenerator();
  ~vtkPUnstructuredGridGhostCellsGenerator();

  virtual int RequestData(vtkInformation *, vtkInformationVector **,
    vtkInformationVector *);

  void ExtractAndReduceSurfacePoints();

  void ComputeSharedPoints();

  void ExtractAndSendGhostCells();

  void ReceiveAndMergeGhostCells(vtkUnstructuredGrid*);

  vtkMultiProcessController *Controller;

  int NumRanks;
  int RankId;
  char* GlobalPointIdsArrayName;
  bool UseGlobalPointIds;

private:
  struct vtkInternals;
  vtkInternals* Internals;

  vtkPUnstructuredGridGhostCellsGenerator(const vtkPUnstructuredGridGhostCellsGenerator&); // Not implemented
  void operator=(const vtkPUnstructuredGridGhostCellsGenerator&); // Not implemented
};

#endif