---

Imaging/vtkImageEuclideanDistance.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkImageEuclideanDistance.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 __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();
  vtkTypeRevisionMacro(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, float);
  vtkGetMacro(MaximumDistance, float);


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

  void IterativeExecuteData(vtkImageData *in, vtkImageData *out);
  
protected:
  vtkImageEuclideanDistance();
  ~vtkImageEuclideanDistance() {}

  float MaximumDistance;
  int Initialize;
  int ConsiderAnisotropy;
  int Algorithm;

  // Replaces "EnlargeOutputUpdateExtent"
  virtual void AllocateOutputScalars(vtkImageData *outData);
  
  void ExecuteInformation(vtkImageData *input, vtkImageData *output);
  void ExecuteInformation()
    {this->vtkImageIterateFilter::ExecuteInformation();}
  void ComputeInputUpdateExtent(int inExt[6], int outExt[6]);
private:
  vtkImageEuclideanDistance(const vtkImageEuclideanDistance&);  // Not implemented.
  void operator=(const vtkImageEuclideanDistance&);  // Not implemented.
};

#endif

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