vtkHyperTreeGridFeatureEdges.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkHyperTreeGridFeatureEdges_h
#define vtkHyperTreeGridFeatureEdges_h

#include "vtkFiltersHyperTreeModule.h" // For export macro
#include "vtkHyperTreeGridAlgorithm.h"
#include "vtkMergePoints.h"  // For vtkMergePoints
#include "vtkSmartPointer.h" // For vtkNew

VTK_ABI_NAMESPACE_BEGIN

class vtkCellArray;
class vtkDataObject;
class vtkHyperTreeGrid;
class vtkHyperTreeGridNonOrientedGeometryCursor;
class vtkHyperTreeGridNonOrientedMooreSuperCursor;
class vtkHyperTreeGridNonOrientedVonNeumannSuperCursor;
class vtkInformation;
class vtkPoints;

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


  vtkSetMacro(MergePoints, bool);
  vtkGetMacro(MergePoints, bool);

protected:
  vtkHyperTreeGridFeatureEdges() = default;
  ~vtkHyperTreeGridFeatureEdges() override = default;

  int FillOutputPortInformation(int, vtkInformation*) override;

  int ProcessTrees(vtkHyperTreeGrid*, vtkDataObject*) override;

  bool MergePoints = false;

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


  void Process1DHTG(vtkHyperTreeGrid* input, vtkPoints* outPoints, vtkCellArray* outCells);
  void Process2DHTG(vtkHyperTreeGrid* input, vtkPoints* outPoints, vtkCellArray* outCells);
  void Process3DHTG(vtkHyperTreeGrid* input, vtkPoints* outPoints, vtkCellArray* outCells);


  void RecursivelyProcess1DHTGTree(vtkHyperTreeGrid* input, vtkPoints* outPoints,
    vtkCellArray* outCells, vtkHyperTreeGridNonOrientedGeometryCursor* cursor);
  void RecursivelyProcess2DHTGTree(vtkHyperTreeGrid* input, vtkPoints* outPoints,
    vtkCellArray* outCells, vtkHyperTreeGridNonOrientedVonNeumannSuperCursor* cursor);
  void RecursivelyProcess3DHTGTree(vtkHyperTreeGrid* input, vtkPoints* outPoints,
    vtkCellArray* outCells, vtkHyperTreeGridNonOrientedMooreSuperCursor* cursor);


  vtkSmartPointer<vtkPoints> Build1DCellPoints(vtkHyperTreeGridNonOrientedGeometryCursor* cursor);
  vtkSmartPointer<vtkPoints> Build2DCellPoints(
    vtkHyperTreeGridNonOrientedVonNeumannSuperCursor* cursor);
  vtkSmartPointer<vtkPoints> Build3DCellPoints(vtkHyperTreeGridNonOrientedMooreSuperCursor* cursor);

  bool ShouldAddEdge2D(
    vtkHyperTreeGridNonOrientedVonNeumannSuperCursor* cursor, unsigned int edgeId);

  bool ShouldAddEdge3D(vtkHyperTreeGridNonOrientedMooreSuperCursor* cursor, unsigned int edgeId);

  void InsertNewEdge(double* edgePt1, double* edgePt2, vtkPoints* outPoints, vtkCellArray* outCells,
    vtkIdType cellId);

  unsigned int OrientationAxe1D = 0;
  const unsigned int* OrientationAxes2D = nullptr;

  vtkSmartPointer<vtkMergePoints> Locator;
};

VTK_ABI_NAMESPACE_END
#endif /* vtkHyperTreeGridFeatureEdges_h */