vtkVoronoi2D.h

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

  Program:   Visualization Toolkit
  Module:    vtkVoronoi2D.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 vtkVoronoi2D_h
#define vtkVoronoi2D_h

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

class vtkStaticPointLocator2D;
class vtkAbstractTransform;
class vtkPointSet;
class vtkSpheres;

class VTKFILTERSCORE_EXPORT vtkVoronoi2D : public vtkPolyDataAlgorithm
{
public:

  static vtkVoronoi2D *New();
  vtkTypeMacro(vtkVoronoi2D,vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkSetClampMacro(Padding,double,0.001,0.25);
  vtkGetMacro(Padding,double);

  enum GenerateScalarsStrategy
  {
    NONE=0,
    POINT_IDS=1,
    THREAD_IDS=2
  };


  vtkSetMacro(GenerateScalars,int);
  vtkGetMacro(GenerateScalars,int);
  void SetGenerateScalarsToNone()
    { this->SetGenerateScalars(NONE); }
  void SetGenerateScalarsToPointIds()
    { this->SetGenerateScalars(POINT_IDS); }
  void SetGenerateScalarsToThreadIds()
    { this->SetGenerateScalars(THREAD_IDS); }


  virtual void SetTransform(vtkAbstractTransform*);
  vtkGetObjectMacro(Transform, vtkAbstractTransform);

  enum ProjectionPlaneStrategy
  {
    XY_PLANE=0,
    SPECIFIED_TRANSFORM_PLANE=1,
    BEST_FITTING_PLANE=2
  };


  vtkSetClampMacro(ProjectionPlaneMode,int,XY_PLANE,BEST_FITTING_PLANE);
  vtkGetMacro(ProjectionPlaneMode,int);
  void SetProjectionPlaneModeToXYPlane()
    { this->SetProjectionPlaneMode(XY_PLANE); }
  void SetProjectionPlaneModeToSpecifiedTransformPlane()
    { this->SetProjectionPlaneMode(SPECIFIED_TRANSFORM_PLANE); }
  void SetProjectionPlaneModeToBestFittingPlane()
    { this->SetProjectionPlaneMode(BEST_FITTING_PLANE); }


  vtkSetClampMacro(PointOfInterest,vtkIdType,-1,VTK_ID_MAX);
  vtkGetMacro(PointOfInterest,vtkIdType);
  vtkSetClampMacro(MaximumNumberOfTileClips,vtkIdType,1,VTK_ID_MAX);
  vtkGetMacro(MaximumNumberOfTileClips,vtkIdType);


  vtkStaticPointLocator2D *GetLocator()
  { return this->Locator; }


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


  vtkGetObjectMacro(Spheres,vtkSpheres);

  int GetNumberOfThreadsUsed()
  {return this->NumberOfThreadsUsed;}

  vtkMTimeType GetMTime() override;

protected:
  vtkVoronoi2D();
  ~vtkVoronoi2D() override;

  int GenerateScalars;
  double Padding;
  double Tolerance;
  int ProjectionPlaneMode; //selects the plane in 3D where the tessellation will be computed
  vtkStaticPointLocator2D *Locator;
  vtkAbstractTransform *Transform;
  vtkIdType PointOfInterest;
  vtkIdType MaximumNumberOfTileClips;
  vtkTypeBool GenerateVoronoiFlower;
  int NumberOfThreadsUsed;
  vtkSpheres *Spheres;

  // Satisfy pipeline-related API
  int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override;
  int FillInputPortInformation(int, vtkInformation*) override;

private:
  vtkVoronoi2D(const vtkVoronoi2D&) = delete;
  void operator=(const vtkVoronoi2D&) = delete;
};

#endif