vtkImageClip.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkImageClip.h,v $

  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 __vtkImageClip_h
#define __vtkImageClip_h

// I did not make this a subclass of in place filter because
// the references on the data do not matter. I make no modifications
// to the data.
#include "vtkImageAlgorithm.h"

class VTK_IMAGING_EXPORT vtkImageClip : public vtkImageAlgorithm
{
public:
  static vtkImageClip *New();
  vtkTypeRevisionMacro(vtkImageClip,vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  void SetOutputWholeExtent(int extent[6], vtkInformation *outInfo=0);
  void SetOutputWholeExtent(int minX, int maxX, int minY, int maxY, 
                            int minZ, int maxZ);
  void GetOutputWholeExtent(int extent[6]);
  int *GetOutputWholeExtent() {return this->OutputWholeExtent;}

  void ResetOutputWholeExtent();


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

  void SetOutputWholeExtent(int piece, int numPieces);

protected:
  vtkImageClip();
  ~vtkImageClip() {};

  // Time when OutputImageExtent was computed.
  vtkTimeStamp CTime;
  int Initialized; // Set the OutputImageExtent for the first time.
  int OutputWholeExtent[6];

  int ClipData;
  
  virtual int RequestInformation (vtkInformation *,
                                  vtkInformationVector **,
                                  vtkInformationVector *);

  void CopyData(vtkImageData *inData, vtkImageData *outData, int *ext);

  int SplitExtentTmp(int piece, int numPieces, int *ext);

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

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



#endif

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