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

  Program:   Visualization Toolkit
  Module:    vtkMFIXReader.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 vtkMFIXReader_h
#define vtkMFIXReader_h

#include "vtkIOGeometryModule.h" // For export macro
#include "vtkUnstructuredGridAlgorithm.h"

class vtkDataArraySelection;
class vtkDoubleArray;
class vtkStringArray;
class vtkIntArray;
class vtkFloatArray;
class vtkXMLUnstructuredGridWriter;
class vtkWedge;
class vtkQuad;
class vtkHexahedron;
class vtkPoints;
class vtkStdString;

class VTKIOGEOMETRY_EXPORT vtkMFIXReader : public vtkUnstructuredGridAlgorithm
{
public:
  static vtkMFIXReader *New();
  vtkTypeMacro(vtkMFIXReader,vtkUnstructuredGridAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetStringMacro(FileName);
  vtkGetStringMacro(FileName);


  vtkGetMacro(NumberOfCells,int);


  vtkGetMacro(NumberOfPoints,int);


  vtkGetMacro(NumberOfCellFields,int);


  vtkSetMacro(TimeStep, int);
  vtkGetMacro(TimeStep, int);


  vtkGetMacro(NumberOfTimeSteps, int);


  vtkGetVector2Macro(TimeStepRange, int);
  vtkSetVector2Macro(TimeStepRange, int);

  int GetNumberOfCellArrays(void);

  const char* GetCellArrayName(int index);


  int GetCellArrayStatus(const char* name);
  void SetCellArrayStatus(const char* name, int status);


  void DisableAllCellArrays();
  void EnableAllCellArrays();

  VTK_LEGACY(void GetCellDataRange(int cellComp, int index, float *min, float *max));

  void GetCellDataRange(int cellComp, float *min, float *max);

protected:
  vtkMFIXReader();
  ~vtkMFIXReader();
  int RequestInformation(vtkInformation *,
    vtkInformationVector **, vtkInformationVector *);
  int RequestData(vtkInformation *,
    vtkInformationVector **, vtkInformationVector *);

  //
  // ParaView Variables
  //

  char *FileName;
  int RequestInformationFlag;
  int MakeMeshFlag;
  int NumberOfPoints;
  int NumberOfCells;
  int NumberOfCellFields;
  vtkIntArray   *VectorLength;
  vtkFloatArray *Minimum;
  vtkFloatArray *Maximum;
  vtkDataArraySelection *CellDataArraySelection;
  int TimeStep;
  int ActualTimeStep;
  int CurrentTimeStep;
  int NumberOfTimeSteps;
  int *TimeSteps;
  int TimeStepRange[2];
  int TimeStepWasReadOnce;

  //
  //  MFIX Variables
  //

  vtkFloatArray **CellDataArray; // Arrays for variables that will
                                 //attach to mesh
  vtkPoints *Points;            // Points array for building grid
  vtkUnstructuredGrid *Mesh;    // Unstructured Grid
  vtkHexahedron *AHexahedron;   // Hexahedron type cell
  vtkWedge *AWedge;             // Wedge type cell
  vtkQuad *AQuad;               // Quad type cell
  vtkIntArray *Flag;            // Cell Flag array
  vtkDoubleArray *Dx;           // Cell widths in x axis
  vtkDoubleArray *Dy;           // Cell widths in y axis
  vtkDoubleArray *Dz;           // Cell widths in z axis
  vtkIntArray *NMax;            // Array to hold number of species per phase
  vtkDoubleArray *C;            // Array used to parse restart file
  vtkIntArray *TempI;           // Array used to parse restart file
  vtkDoubleArray *TempD;        // Array used to parse restart file
  vtkIntArray *SpxFileExists;   // Array for keeping track of
                                // what spx files exist.

  char FileExtension[15];
  char DataBuffer[513];
  char Version[120];
  float VersionNumber;
  int    DimensionIc;
  int    DimensionBc;
  int    DimensionC;
  int    DimensionIs;
  double Ce;
  double Cf;
  double Phi;
  double PhiW;
  double DeltaTime;
  double XMinimum;
  char RunName[256];
  vtkStringArray *VariableNames;
  vtkIntArray *VariableComponents;
  int IMinimum1;
  int JMinimum1;
  int KMinimum1;
  int IMaximum;
  int JMaximum;
  int KMaximum;
  int IMaximum1;
  int JMaximum1;
  int KMaximum1;
  int IMaximum2;
  int JMaximum2;
  int KMaximum2;
  int IJMaximum2;
  int IJKMaximum2;
  int MMAX;
  int NumberOfSPXFilesUsed;
  double XLength;
  double YLength;
  double ZLength;
  int  NumberOfScalars;
  int NumberOfReactionRates;
  bool BkEpsilon;
  char CoordinateSystem[17];
  char Units[17];

  //
  //  SPX Variables
  //

  int MaximumTimestep;              // maximum timesteps amongst the variables
  int SPXRecordsPerTimestep;        // number of records in a single
                                    // timestep for a variable
  vtkIntArray *SPXToNVarTable;      // number of variables in each spx file
  vtkIntArray *VariableToSkipTable; // skip value for each variable, this
                                    // is needed in spx files
                                    // with more than one variable.
  vtkIntArray *VariableTimesteps;   // number of timesteps for each variable
  vtkIntArray *VariableTimestepTable;  // Since the number of timesteps
                                       // vary between variables
                                       //  this is a table that looks
                                       //  up the appropriate timestep
                                       // for the particular variable.
  vtkIntArray *variableIndexToSPX;  //  This gives the spx file number for the
                                    //  particular variable.
  vtkIntArray *VariableIndexToSPX;  //  This gives the spx file number for the
                                    //  particular variable.
  vtkIntArray *SPXTimestepIndexTable; //  This a table look up for the index
                              //  into a file for a certain variable.

private:
  vtkMFIXReader(const vtkMFIXReader&);  // Not implemented.
  void operator=(const vtkMFIXReader&);  // Not implemented.

  void MakeMesh(vtkUnstructuredGrid *output);
  void SwapDouble(double &value);
  void SwapFloat(float &value);
  void SwapInt(int &value);
  vtkStdString ConvertIntToString(int in);
  int ConvertCharToInt(char in);
  int ConvertStringToInt(const vtkStdString & in);
  void GetInt(istream& in, int &val);
  void GetDouble(istream& in, double& val);
  void GetFloat(istream& in, float& val);
  void SkipBytes(istream& in, int n);
  void RestartVersionNumber(const char* buffer);
  void GetBlockOfDoubles(istream& in, vtkDoubleArray *v, int n);
  void GetBlockOfFloats(istream& in, vtkFloatArray *v, int n);
  void GetBlockOfInts(istream& in, vtkIntArray *v, int n);
  void ReadRestartFile();
  void GetVariableAtTimestep(int vari , int tstep, vtkFloatArray *v);
  void CreateVariableNames();
  void GetTimeSteps();
  void MakeTimeStepTable(int nvars);
  void SetProjectName (const char *infile);
  void MakeSPXTimeStepIndexTable(int nvars);
  void CalculateMaxTimeStep();
  void GetNumberOfVariablesInSPXFiles();
  void FillVectorVariable( int xindex, int yindex, int zindex,
         vtkFloatArray *v);
  void ConvertVectorFromCylindricalToCartesian( int xindex, int zindex);
  void GetAllTimes(vtkInformationVector *outputVector);

};

#endif