vtkAMRConnectivity.h

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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-FileCopyrightText: Copyright 2013 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
#ifndef vtkAMRConnectivity_h
#define vtkAMRConnectivity_h

#include "vtkMultiBlockDataSetAlgorithm.h"
#include "vtkPVVTKExtensionsAMRModule.h" //needed for exports
#include "vtkSmartPointer.h"             // needed for vtkSmartPointer.
#include <string>                        // STL required.
#include <vector>                        // STL required.

class vtkNonOverlappingAMR;
class vtkUniformGrid;
class vtkIdTypeArray;
class vtkIntArray;
class vtkAMRDualGridHelper;
class vtkAMRDualGridHelperBlock;
class vtkAMRConnectivityEquivalence;
class vtkMPIController;
class vtkUnsignedCharArray;

class VTKPVVTKEXTENSIONSAMR_EXPORT vtkAMRConnectivity : public vtkMultiBlockDataSetAlgorithm
{
public:
  vtkTypeMacro(vtkAMRConnectivity, vtkMultiBlockDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkAMRConnectivity* New();


  void AddInputVolumeArrayToProcess(const char* name);
  void ClearInputVolumeArrayToProcess();


  vtkGetMacro(VolumeFractionSurfaceValue, double);
  vtkSetMacro(VolumeFractionSurfaceValue, double);


  vtkGetMacro(ResolveBlocks, bool);
  vtkSetMacro(ResolveBlocks, bool);


  vtkGetMacro(PropagateGhosts, bool);
  vtkSetMacro(PropagateGhosts, bool);

protected:
  vtkAMRConnectivity();
  ~vtkAMRConnectivity() override;

  double VolumeFractionSurfaceValue;
  vtkAMRDualGridHelper* Helper;
  vtkAMRConnectivityEquivalence* Equivalence;

  bool ResolveBlocks;
  bool PropagateGhosts;

  std::string RegionName;
  vtkIdType NextRegionId;

  std::vector<std::string> VolumeArrays;

  std::vector<std::vector<vtkSmartPointer<vtkIdTypeArray>>> BoundaryArrays;
  std::vector<std::vector<int>> ReceiveList;

  std::vector<bool> ValidNeighbor;
  std::vector<std::vector<std::vector<int>>> NeighborList;
  std::vector<vtkSmartPointer<vtkIntArray>> EquivPairs;

  int FillInputPortInformation(int port, vtkInformation* info) override;
  int FillOutputPortInformation(int port, vtkInformation* info) override;

  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;

  int DoRequestData(vtkNonOverlappingAMR*, const char*);
  int WavePropagation(vtkIdType cellIdStart, vtkUniformGrid* grid, vtkIdTypeArray* regionId,
    vtkDataArray* volArray, vtkUnsignedCharArray* ghostArray);

  vtkAMRDualGridHelperBlock* GetBlockNeighbor(vtkAMRDualGridHelperBlock* block, int dir);
  void ProcessBoundaryAtBlock(vtkNonOverlappingAMR* volume, vtkAMRDualGridHelperBlock* block,
    vtkAMRDualGridHelperBlock* neighbor, int dir);
  int ExchangeBoundaries(vtkMPIController* controller);
  int ExchangeEquivPairs(vtkMPIController* controller);
  void ProcessBoundaryAtNeighbor(vtkNonOverlappingAMR* volume, vtkIdTypeArray* array);

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

#endif /* vtkAMRConnectivity_h */