dox/Imaging/vtkImageEuclideanDistance.h

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

  Program:   Visualization Toolkit
  Module:    vtkImageEuclideanDistance.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 __vtkImageEuclideanDistance_h
#define __vtkImageEuclideanDistance_h

#include "vtkImageDecomposeFilter.h"

#define VTK_EDT_SAITO_CACHED 0
#define VTK_EDT_SAITO 1 

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


  int SplitExtent(int splitExt[6], int startExt[6], 
                  int num, int total);


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

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

  vtkSetMacro(MaximumDistance, double);
  vtkGetMacro(MaximumDistance, double);


  vtkSetMacro(Algorithm, int);
  vtkGetMacro(Algorithm, int);
  void SetAlgorithmToSaito () 
    { this->SetAlgorithm(VTK_EDT_SAITO); } 
  void SetAlgorithmToSaitoCached () 
    { this->SetAlgorithm(VTK_EDT_SAITO_CACHED); }   

  virtual int IterativeRequestData(vtkInformation*,
                                   vtkInformationVector**,
                                   vtkInformationVector*);
  
protected:
  vtkImageEuclideanDistance();
  ~vtkImageEuclideanDistance() {}

  double MaximumDistance;
  int Initialize;
  int ConsiderAnisotropy;
  int Algorithm;

  // Replaces "EnlargeOutputUpdateExtent"
  virtual void AllocateOutputScalars(vtkImageData *outData);
  
  virtual int IterativeRequestInformation(vtkInformation* in,
                                          vtkInformation* out);
  virtual int IterativeRequestUpdateExtent(vtkInformation* in,
                                           vtkInformation* out);

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

#endif