vtkTecplotReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright (c) 2000 - 2009, Lawrence Livermore National Security, LLC
// SPDX-License-Identifier: BSD-3-Clause

 
#ifndef vtkTecplotReader_h
#define vtkTecplotReader_h
 
#include "vtkIOGeometryModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"
 
#include <string> // STL Header; Required for string
#include <vector> // STL Header; Required for vector
 
VTK_ABI_NAMESPACE_BEGIN
class vtkPoints;
class vtkCellData;
class vtkPointData;
class vtkCallbackCommand;
class vtkUnstructuredGrid;
class vtkMultiBlockDataSet;
class vtkDataArraySelection;
class vtkTecplotReaderInternal;
 
class VTKIOGEOMETRY_EXPORT vtkTecplotReader : public vtkMultiBlockDataSetAlgorithm
{
public:
  static vtkTecplotReader* New();
  vtkTypeMacro(vtkTecplotReader, vtkMultiBlockDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  vtkGetMacro(NumberOfVariables, int);

  void SetFileName(VTK_FILEPATH const char* fileName);

  const char* GetDataTitle();

  int GetNumberOfBlocks();

  const char* GetBlockName(int blockIdx);

  int GetNumberOfDataAttributes();

  const char* GetDataAttributeName(int attrIndx);

  int IsDataAttributeCellBased(const char* attrName);

  int IsDataAttributeCellBased(int attrIndx);

  int GetNumberOfDataArrays();

  const char* GetDataArrayName(int arrayIdx);

  int GetDataArrayStatus(const char* arayName);

  void SetDataArrayStatus(const char* arayName, int bChecked);
 
protected:
  vtkTecplotReader();
  ~vtkTecplotReader() override;
 
  int FillOutputPortInformation(int port, vtkInformation* info) override;
  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;

  static void SelectionModifiedCallback(vtkObject*, unsigned long, void* tpReader, void*);

  void Init();
 
private:
  void GetArraysFromBlockPackingZone(int numNodes, int numCells, vtkPoints* theNodes,
    vtkPointData* nodeData, vtkCellData* cellData, const std::vector<int>& variablesToRead);

  void GetArraysFromPointPackingZone(int numNodes, vtkPoints* theNodes, vtkPointData* nodeData,
    const std::vector<int>& variablesToRead);

  void ReadFile(vtkInformation* outInfo);

  void ReadData(vtkMultiBlockDataSet* multZone, std::size_t timeStepIndex);

  void GetStructuredGridFromBlockPackingZone(
    int zoneDataIndex, int multiBlockIdx, vtkMultiBlockDataSet* multZone);

  void GetStructuredGridFromPointPackingZone(
    int zoneDataIndex, int multiBlockIdx, vtkMultiBlockDataSet* multZone);

  void GetUnstructuredGridFromBlockPackingZone(
    int zoneDataIndex, int multiBlockIdx, vtkMultiBlockDataSet* multZone);

  void GetPolyhedralGridFromBlockPackingZone(
    int zoneDataIndex, int multiBlockIdx, vtkMultiBlockDataSet* multZone);

  void GetPolygonalGridFromBlockPackingZone(
    int zoneDataIndex, int multiBlockIdx, vtkMultiBlockDataSet* multZone);

  void GetPolyhedralGridCells(int numberCells, int numFaces, vtkUnstructuredGrid* unstruct) const;

  void GetPolygonalGridCells(int numFaces, int numEdges, vtkUnstructuredGrid* unstruct) const;

  void GetUnstructuredGridFromPointPackingZone(
    int zoneDataIndex, int multiBlockIndex, vtkMultiBlockDataSet* multZone);
 
  vtkTecplotReader(const vtkTecplotReader&) = delete;
  void operator=(const vtkTecplotReader&) = delete;
 
  int NumberOfVariables = 0;
  char* FileName = nullptr;
  vtkCallbackCommand* SelectionObserver = nullptr;
  vtkDataArraySelection* DataArraySelection = nullptr;
  vtkTecplotReaderInternal* Internal = nullptr;
 
  std::string DataTitle;
  std::vector<int> CellBased;
  std::vector<std::string> ZoneNames;
  std::vector<std::string> Variables;
};
 
VTK_ABI_NAMESPACE_END
#endif