vtkHyperTreeGridPlaneCutter.h

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

  Program:   Visualization Toolkit
  Module:    vtkHyperTreeGridPlaneCutter.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 vtkHyperTreeGridPlaneCutter_h
#define vtkHyperTreeGridPlaneCutter_h

#include "vtkFiltersHyperTreeModule.h" // For export macro
#include "vtkHyperTreeGridAlgorithm.h"

class vtkCellArray;
class vtkCutter;
class vtkIdList;
class vtkPoints;
class vtkHyperTreeGridNonOrientedGeometryCursor;
class vtkHyperTreeGridNonOrientedMooreSuperCursor;

class VTKFILTERSHYPERTREE_EXPORT vtkHyperTreeGridPlaneCutter : public vtkHyperTreeGridAlgorithm
{
public:
  static vtkHyperTreeGridPlaneCutter* New();
  vtkTypeMacro(vtkHyperTreeGridPlaneCutter, vtkHyperTreeGridAlgorithm);
  void PrintSelf(ostream&, vtkIndent) override;


  void SetPlane(double a, double b, double c, double d);
  vtkGetVector4Macro(Plane, double);


  vtkGetMacro(AxisAlignment, int);


  bool IsPlaneOrthogonalToXAxis() { return this->AxisAlignment == 0; }
  bool IsPlaneOrthogonalToYAxis() { return this->AxisAlignment == 1; }
  bool IsPlaneOrthogonalToZAxis() { return this->AxisAlignment == 2; }
  //}@


  vtkSetMacro(Dual, int);
  vtkGetMacro(Dual, int);
  vtkBooleanMacro(Dual, int);

protected:
  vtkHyperTreeGridPlaneCutter();
  ~vtkHyperTreeGridPlaneCutter() override;

  virtual void Reset();

  int FillOutputPortInformation(int, vtkInformation*) override;

  int ProcessTrees(vtkHyperTreeGrid*, vtkDataObject*) override;

  void RecursivelyProcessTreePrimal(vtkHyperTreeGridNonOrientedGeometryCursor*);

  bool RecursivelyPreProcessTree(vtkHyperTreeGridNonOrientedGeometryCursor*);

  void RecursivelyProcessTreeDual(vtkHyperTreeGridNonOrientedMooreSuperCursor*);

  bool CheckIntersection(double[8][3], double[8]);

  // Check if a cursor is intersected by a plane.
  // Don't return function evaluations
  bool CheckIntersection(double[8][3]);

  void PlaneCut(int, int, double[8][3], int&, double[][3]);

  void ReorderCutPoints(int, double[][3]);

  double Plane[4];

  int Dual;

  vtkBitArray* SelectedCells;

  vtkPoints* Points;

  vtkCellArray* Cells;

  vtkIdList* Leaves;

  vtkPoints* Centers;

  vtkCutter* Cutter;

  vtkBitArray* InMask;

  int AxisAlignment;

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

#endif /* vtkHyperTreeGridPlaneCutter_h */