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 "vtkImagingGeneralModule.h" // For export macro
#include "vtkImageDecomposeFilter.h"

#define VTK_EDT_SAITO_CACHED 0
#define VTK_EDT_SAITO 1

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


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


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


  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); }

  int IterativeRequestData(vtkInformation*,
                                   vtkInformationVector**,
                                   vtkInformationVector*) override;

protected:
  vtkImageEuclideanDistance();
  ~vtkImageEuclideanDistance() override {}

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

  // Replaces "EnlargeOutputUpdateExtent"
  virtual void AllocateOutputScalars(vtkImageData *outData,
                                     int outExt[6],
                                     vtkInformation* outInfo);

  int IterativeRequestInformation(vtkInformation* in,
                                          vtkInformation* out) override;
  int IterativeRequestUpdateExtent(vtkInformation* in,
                                           vtkInformation* out) override;

private:
  vtkImageEuclideanDistance(const vtkImageEuclideanDistance&) = delete;
  void operator=(const vtkImageEuclideanDistance&) = delete;
};

#endif