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

  Program:   Visualization Toolkit
  Module:    vtkExtractVOI.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 vtkExtractVOI_h
#define vtkExtractVOI_h

#include "vtkImagingCoreModule.h" // For export macro
#include "vtkImageAlgorithm.h"

// Forward Declarations
class vtkExtractStructuredGridHelper;

class VTKIMAGINGCORE_EXPORT vtkExtractVOI : public vtkImageAlgorithm
{
public:
  vtkTypeMacro(vtkExtractVOI,vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkExtractVOI *New();


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


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


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

protected:
  vtkExtractVOI();
  ~vtkExtractVOI();

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


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

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

  vtkExtractStructuredGridHelper* Internal;
private:
  vtkExtractVOI(const vtkExtractVOI&);  // Not implemented.
  void operator=(const vtkExtractVOI&);  // Not implemented.
};

#endif