vtkMultiBlockPLOT3DReader.h

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

  Program:   Visualization Toolkit
  Module:    vtkMultiBlockPLOT3DReader.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 vtkMultiBlockPLOT3DReader_h
#define vtkMultiBlockPLOT3DReader_h

#include <vector>  // For holding function-names
#include "vtkIOParallelModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"

class vtkDataArray;
class vtkDataSetAttributes;
class vtkIntArray;
class vtkMultiBlockPLOT3DReaderRecord;
class vtkMultiProcessController;
class vtkStructuredGrid;
class vtkUnsignedCharArray;
struct vtkMultiBlockPLOT3DReaderInternals;

namespace Functors
{
  class ComputeFunctor;
  class ComputeTemperatureFunctor;
  class ComputePressureFunctor;
  class ComputePressureCoefficientFunctor;
  class ComputeMachNumberFunctor;
  class ComputeSoundSpeedFunctor;
  class ComputeEnthalpyFunctor;
  class ComputeKinecticEnergyFunctor;
  class ComputeVelocityMagnitudeFunctor;
  class ComputeEntropyFunctor;
  class ComputeSwirlFunctor;
  class ComputeVelocityFunctor;
  class ComputeVorticityMagnitudeFunctor;
  class ComputePressureGradientFunctor;
  class ComputeVorticityFunctor;
  class ComputeStrainRateFunctor;
}


class VTKIOPARALLEL_EXPORT vtkMultiBlockPLOT3DReader : public vtkMultiBlockDataSetAlgorithm
{
friend class Functors::ComputeFunctor;
friend class Functors::ComputeTemperatureFunctor;
friend class Functors::ComputePressureFunctor;
friend class Functors::ComputePressureCoefficientFunctor;
friend class Functors::ComputeMachNumberFunctor;
friend class Functors::ComputeSoundSpeedFunctor;
friend class Functors::ComputeEnthalpyFunctor;
friend class Functors::ComputeKinecticEnergyFunctor;
friend class Functors::ComputeVelocityMagnitudeFunctor;
friend class Functors::ComputeEntropyFunctor;
friend class Functors::ComputeSwirlFunctor;
friend class Functors::ComputeVelocityFunctor;
friend class Functors::ComputeVorticityMagnitudeFunctor;
friend class Functors::ComputePressureGradientFunctor;
friend class Functors::ComputeVorticityFunctor;
friend class Functors::ComputeStrainRateFunctor;
public:
  static vtkMultiBlockPLOT3DReader *New();
  vtkTypeMacro(vtkMultiBlockPLOT3DReader,vtkMultiBlockDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void SetFileName(const char* name) { this->SetXYZFileName(name); }
  const char* GetFileName() { return this->GetXYZFileName(); }
  virtual void SetXYZFileName( const char* );
  vtkGetStringMacro(XYZFileName);


  vtkSetStringMacro(QFileName);
  vtkGetStringMacro(QFileName);


  vtkSetStringMacro(FunctionFileName);
  vtkGetStringMacro(FunctionFileName);


  vtkSetMacro(AutoDetectFormat, vtkTypeBool);
  vtkGetMacro(AutoDetectFormat, vtkTypeBool);
  vtkBooleanMacro(AutoDetectFormat, vtkTypeBool);


  vtkSetMacro(BinaryFile, vtkTypeBool);
  vtkGetMacro(BinaryFile, vtkTypeBool);
  vtkBooleanMacro(BinaryFile, vtkTypeBool);


  vtkSetMacro(MultiGrid, vtkTypeBool);
  vtkGetMacro(MultiGrid, vtkTypeBool);
  vtkBooleanMacro(MultiGrid, vtkTypeBool);


  vtkSetMacro(HasByteCount, vtkTypeBool);
  vtkGetMacro(HasByteCount, vtkTypeBool);
  vtkBooleanMacro(HasByteCount, vtkTypeBool);


  vtkSetMacro(IBlanking, vtkTypeBool);
  vtkGetMacro(IBlanking, vtkTypeBool);
  vtkBooleanMacro(IBlanking, vtkTypeBool);


  vtkSetMacro(TwoDimensionalGeometry, vtkTypeBool);
  vtkGetMacro(TwoDimensionalGeometry, vtkTypeBool);
  vtkBooleanMacro(TwoDimensionalGeometry, vtkTypeBool);


  vtkSetMacro(DoublePrecision, vtkTypeBool);
  vtkGetMacro(DoublePrecision, vtkTypeBool);
  vtkBooleanMacro(DoublePrecision, vtkTypeBool);


  vtkSetMacro(ForceRead, vtkTypeBool);
  vtkGetMacro(ForceRead, vtkTypeBool);
  vtkBooleanMacro(ForceRead, vtkTypeBool);


  void SetByteOrderToBigEndian();
  void SetByteOrderToLittleEndian();
  vtkSetMacro(ByteOrder, int);
  vtkGetMacro(ByteOrder, int);
  const char *GetByteOrderAsString();


  vtkSetMacro(R,double);
  vtkGetMacro(R,double);


  vtkSetMacro(Gamma,double);
  vtkGetMacro(Gamma,double);


  vtkSetMacro(PreserveIntermediateFunctions, bool);
  vtkGetMacro(PreserveIntermediateFunctions, bool);
  vtkBooleanMacro(PreserveIntermediateFunctions, bool);


  void SetScalarFunctionNumber(int num);
  vtkGetMacro(ScalarFunctionNumber,int);


  void SetVectorFunctionNumber(int num);
  vtkGetMacro(VectorFunctionNumber,int);


  void AddFunction(int functionNumber);
  void RemoveFunction(int);
  void RemoveAllFunctions();

  virtual int CanReadBinaryFile(const char* fname);


  void SetController(vtkMultiProcessController *c);
  vtkGetObjectMacro(Controller, vtkMultiProcessController);

  void AddFunctionName(const std::string &name) {FunctionNames.push_back(name);}

  enum
  {
    FILE_BIG_ENDIAN=0,
    FILE_LITTLE_ENDIAN=1
  };

protected:
  vtkMultiBlockPLOT3DReader();
  ~vtkMultiBlockPLOT3DReader() override;

  vtkDataArray* CreateFloatArray();

  int CheckFile(FILE*& fp, const char* fname);
  int CheckGeometryFile(FILE*& xyzFp);
  int CheckSolutionFile(FILE*& qFp);
  int CheckFunctionFile(FILE*& fFp);

  int GetByteCountSize();
  int SkipByteCount (FILE* fp);
  int ReadIntBlock  (FILE* fp, int n, int*   block);

  vtkIdType ReadValues(
    FILE* fp,
    int n,
    vtkDataArray* scalar);
  virtual int ReadIntScalar(
    void* vfp,
    int extent[6], int wextent[6],
    vtkDataArray* scalar, vtkTypeUInt64 offset,
    const vtkMultiBlockPLOT3DReaderRecord& currentRecord);
  virtual int ReadScalar(
    void* vfp,
    int extent[6], int wextent[6],
    vtkDataArray* scalar, vtkTypeUInt64 offset,
    const vtkMultiBlockPLOT3DReaderRecord& currentRecord);
  virtual int ReadVector(
    void* vfp,
    int extent[6], int wextent[6],
    int numDims, vtkDataArray* vector, vtkTypeUInt64 offset,
    const vtkMultiBlockPLOT3DReaderRecord& currentRecord);
  virtual int OpenFileForDataRead(void*& fp, const char* fname);
  virtual void CloseFile(void* fp);

  int GetNumberOfBlocksInternal(FILE* xyzFp, int allocate);

  int ReadGeometryHeader(FILE* fp);
  int ReadQHeader(FILE* fp, bool checkGrid, int& nq, int& nqc, int& overflow);
  int ReadFunctionHeader(FILE* fp, int* nFunctions);

  void CalculateFileSize(FILE* fp);

  int AutoDetectionCheck(FILE* fp);

  void AssignAttribute(int fNumber, vtkStructuredGrid* output,
                       int attributeType);
  void MapFunction(int fNumber, vtkStructuredGrid* output);


  vtkDataArray* ComputeTemperature(vtkStructuredGrid* output);
  vtkDataArray* ComputePressure(vtkStructuredGrid* output);
  vtkDataArray* ComputeEnthalpy(vtkStructuredGrid* output);
  vtkDataArray* ComputeKineticEnergy(vtkStructuredGrid* output);
  vtkDataArray* ComputeVelocityMagnitude(vtkStructuredGrid* output);
  vtkDataArray* ComputeEntropy(vtkStructuredGrid* output);
  vtkDataArray* ComputeSwirl(vtkStructuredGrid* output);
  vtkDataArray* ComputeVelocity(vtkStructuredGrid* output);
  vtkDataArray* ComputeVorticity(vtkStructuredGrid* output);
  vtkDataArray* ComputePressureGradient(vtkStructuredGrid* output);
  vtkDataArray* ComputePressureCoefficient(vtkStructuredGrid* output);
  vtkDataArray* ComputeMachNumber(vtkStructuredGrid* output);
  vtkDataArray* ComputeSoundSpeed(vtkStructuredGrid* output);
  vtkDataArray* ComputeVorticityMagnitude(vtkStructuredGrid* output);
  vtkDataArray* ComputeStrainRate(vtkStructuredGrid* output);

  // Returns a vtkFloatArray or a vtkDoubleArray depending
  // on DoublePrecision setting
  vtkDataArray* NewFloatArray();

  // Delete references to any existing vtkPoints and
  // I-blank arrays. The next Update() will (re)read
  // the XYZ file.
  void ClearGeometryCache();

  double GetGamma(vtkIdType idx, vtkDataArray* gamma);

  //plot3d FileNames
  char *XYZFileName;
  char *QFileName;
  char *FunctionFileName;

  vtkTypeBool BinaryFile;
  vtkTypeBool HasByteCount;
  vtkTypeBool TwoDimensionalGeometry;
  vtkTypeBool MultiGrid;
  vtkTypeBool ForceRead;
  int ByteOrder;
  vtkTypeBool IBlanking;
  vtkTypeBool DoublePrecision;
  vtkTypeBool AutoDetectFormat;

  int ExecutedGhostLevels;

  size_t FileSize;

  //parameters used in computing derived functions
  double R;
  double Gamma;
  double GammaInf;

  bool PreserveIntermediateFunctions;

  //named functions from meta data
  std::vector<std::string> FunctionNames;

  //functions to read that are not scalars or vectors
  vtkIntArray *FunctionList;

  int ScalarFunctionNumber;
  int VectorFunctionNumber;

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

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

  vtkMultiBlockPLOT3DReaderInternals* Internal;

  vtkMultiProcessController *Controller;

private:
  vtkMultiBlockPLOT3DReader(const vtkMultiBlockPLOT3DReader&) = delete;
  void operator=(const vtkMultiBlockPLOT3DReader&) = delete;

  // Key used to flag intermediate results.
  static vtkInformationIntegerKey* INTERMEDIATE_RESULT();

  void RemoveIntermediateFunctions(vtkDataSetAttributes* dsa);
};

#endif