vtkPerturbCoincidentVertices.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2009 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
#ifndef vtkPerturbCoincidentVertices_h
#define vtkPerturbCoincidentVertices_h
 
#include "vtkGraphAlgorithm.h"
#include "vtkInfovisLayoutModule.h" // For export macro
#include "vtkSmartPointer.h"        // for ivars
 
VTK_ABI_NAMESPACE_BEGIN
class vtkCoincidentPoints;
class vtkDataSet;
 
class VTKINFOVISLAYOUT_EXPORT vtkPerturbCoincidentVertices : public vtkGraphAlgorithm
{
public:
  static vtkPerturbCoincidentVertices* New();
  vtkTypeMacro(vtkPerturbCoincidentVertices, vtkGraphAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetMacro(PerturbFactor, double);
  vtkGetMacro(PerturbFactor, double);
 
protected:
  vtkPerturbCoincidentVertices();
  ~vtkPerturbCoincidentVertices() override;
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
 
private:
  // This class might have more than one method of coincident resolution
  void SpiralPerturbation(vtkGraph* input, vtkGraph* output);
  void SimpleSpiralPerturbation(vtkGraph* input, vtkGraph* output, float perturbFactor);
 
  float PerturbFactor;
 
  vtkPerturbCoincidentVertices(const vtkPerturbCoincidentVertices&) = delete;
  void operator=(const vtkPerturbCoincidentVertices&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif