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

  Program:   Visualization Toolkit
  Module:    vtkExtractGrid.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 vtkExtractGrid_h
#define vtkExtractGrid_h

#include "vtkFiltersExtractionModule.h" // For export macro
#include "vtkStructuredGridAlgorithm.h"

// Forward Declarations
class vtkExtractStructuredGridHelper;

class VTKFILTERSEXTRACTION_EXPORT vtkExtractGrid : public vtkStructuredGridAlgorithm
{
public:
  static vtkExtractGrid *New();
  vtkTypeMacro(vtkExtractGrid,vtkStructuredGridAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetVector6Macro(VOI,int);
  vtkGetVectorMacro(VOI,int,6);


  vtkSetVector3Macro(SampleRate, int);
  vtkGetVectorMacro(SampleRate, int, 3);


  vtkSetMacro(IncludeBoundary,int);
  vtkGetMacro(IncludeBoundary,int);
  vtkBooleanMacro(IncludeBoundary,int);

protected:
  vtkExtractGrid();
  ~vtkExtractGrid();

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


  bool RequestDataImpl(int voi[6],
                       vtkInformationVector **inputVector,
                       vtkInformationVector *outputVector);


  int VOI[6];
  int SampleRate[3];
  int IncludeBoundary;

  vtkExtractStructuredGridHelper* Internal;

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

#endif