dox/Imaging/vtkImageStencilData.h

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

  Program:   Visualization Toolkit
  Module:    vtkImageStencilData.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 __vtkImageStencilData_h
#define __vtkImageStencilData_h


#include "vtkDataObject.h"

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

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

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


  vtkSetVector3Macro(Spacing, double);
  vtkGetVector3Macro(Spacing, double);


  vtkSetVector3Macro(Origin, double);
  vtkGetVector3Macro(Origin, double);


  void SetExtent(int extent[6]);
  void SetExtent(int x1, int x2, int y1, int y2, int z1, int z2);
  vtkGetVector6Macro(Extent, int);

  void AllocateExtents();

  void Fill();


  virtual void CopyInformationToPipeline(vtkInformation* request,
                                         vtkInformation* input,
                                         vtkInformation* output,
                                         int forceCopy);
  virtual void CopyInformationFromPipeline(vtkInformation* request);

  //BTX

  static vtkImageStencilData* GetData(vtkInformation* info);
  static vtkImageStencilData* GetData(vtkInformationVector* v, int i=0);
  //ETX
  
  virtual void Add     ( vtkImageStencilData * ); 

  virtual void Subtract( vtkImageStencilData * ); 

  virtual void Replace( vtkImageStencilData * ); 

  virtual int Clip( int extent[6] );

protected:
  vtkImageStencilData();
  ~vtkImageStencilData();

  void CopyOriginAndSpacingFromPipeline();

  virtual void InternalAdd( vtkImageStencilData * );
  
  void CollapseAdditionalIntersections(int r2, int idx, int *clist, 
    int &clistlen);


  double Spacing[3];
  double Origin[3];
  
  int Extent[6];


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

#endif

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