vtkUnstructuredGridQuadricDecimation.h

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

  Program:   Visualization Toolkit
  Module:    vtkUnstructuredGridQuadricDecimation.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.

  Copyright 2007, 2008 by University of Utah.

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

#ifndef vtkUnstructuredGridQuadricDecimation_h
#define vtkUnstructuredGridQuadricDecimation_h

#include "vtkFiltersCoreModule.h" // For export macro
#include "vtkUnstructuredGridAlgorithm.h"

class VTKFILTERSCORE_EXPORT vtkUnstructuredGridQuadricDecimation : public vtkUnstructuredGridAlgorithm
{
public:
  vtkTypeMacro(vtkUnstructuredGridQuadricDecimation, vtkUnstructuredGridAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkUnstructuredGridQuadricDecimation *New();

  // The following 3 parameters will control the process of simplification in
  // the priority:
  // NumberOfEdgesToDecimate, NumberOfTetsOutput, TargetReduction.
  // If NumberOfEdgesToDecimate is 0, NumberOfTetsOutput will be considered. If
  // NumbersOfTetsOutput is also 0, then TargetReduction will control the
  // output.


  vtkSetMacro(TargetReduction, double);
  vtkGetMacro(TargetReduction, double);


  vtkSetMacro(NumberOfTetsOutput, int);
  vtkGetMacro(NumberOfTetsOutput, int);


  vtkSetMacro(NumberOfEdgesToDecimate, int);
  vtkGetMacro(NumberOfEdgesToDecimate, int);


  vtkSetMacro(NumberOfCandidates, int);
  vtkGetMacro(NumberOfCandidates, int);


  vtkSetMacro(AutoAddCandidates, int);
  vtkGetMacro(AutoAddCandidates, int);


  vtkSetMacro(AutoAddCandidatesThreshold, double);
  vtkGetMacro(AutoAddCandidatesThreshold, double);


  vtkSetMacro(BoundaryWeight, double);
  vtkGetMacro(BoundaryWeight, double);


  vtkSetStringMacro(ScalarsName);
  vtkGetStringMacro(ScalarsName);

  enum
  {
    NO_ERROR=0,
    NON_TETRAHEDRA=1,
    NO_SCALARS=2,
    NO_CELLS=3
  };

protected:
  vtkUnstructuredGridQuadricDecimation();
  ~vtkUnstructuredGridQuadricDecimation() override;

  void ReportError(int err);
  int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override;

  int NumberOfTetsOutput;
  int NumberOfEdgesToDecimate;
  int NumberOfCandidates;
  int AutoAddCandidates;

  double TargetReduction;
  double AutoAddCandidatesThreshold;
  double BoundaryWeight;
  char *ScalarsName;

private:
  vtkUnstructuredGridQuadricDecimation(const vtkUnstructuredGridQuadricDecimation&) = delete;
  void operator=(const vtkUnstructuredGridQuadricDecimation&) = delete;

};

#endif