---

Imaging/vtkImageStencilData.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkImageStencilData.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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 __vtkImageStencilData_h
#define __vtkImageStencilData_h


#include "vtkDataObject.h"

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


#ifndef VTK_REMOVE_LEGACY_CODE

  virtual vtkDataObject* MakeObject();
#endif
  
  void Initialize();
  void DeepCopy(vtkDataObject *o);
  void ShallowCopy(vtkDataObject *f);
  void InternalImageStencilDataCopy(vtkImageStencilData *s);

  int GetDataObjectType() { return VTK_DATA_OBJECT; }

  int GetExtentType() { return VTK_3D_EXTENT; };


  int GetNextExtent(int &r1, int &r2, int xMin, int xMax,
                    int yIdx, int zIdx, int &iter);

  void InsertNextExtent(int r1, int r2, int yIdx, int zIdx);


  vtkSetVector3Macro(Spacing, float);
  vtkGetVector3Macro(Spacing, float);


  vtkSetVector3Macro(Origin, float);
  vtkGetVector3Macro(Origin, float);


  vtkSetVector6Macro(Extent, int);
  vtkGetVector6Macro(Extent, int);


  vtkSetVector3Macro(OldSpacing, float);
  vtkGetVector3Macro(OldSpacing, float);


  vtkSetVector3Macro(OldOrigin, float);
  vtkGetVector3Macro(OldOrigin, float);

  void AllocateExtents();

  void UpdateData();

  void PropagateUpdateExtent();

  void TriggerAsynchronousUpdate();

protected:
  vtkImageStencilData();
  ~vtkImageStencilData();

  int SpacingOrOriginHasChanged();


  float OldSpacing[3];
  float OldOrigin[3];


  float Spacing[3];
  float Origin[3];
  

  int NumberOfExtentEntries;
  int *ExtentListLengths;
  int **ExtentLists;
private:
  vtkImageStencilData(const vtkImageStencilData&);  // Not implemented.
  void operator=(const vtkImageStencilData&);  // Not implemented.
};

#endif

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