vtkSLACReader.h

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// -*- c++ -*-
/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkSLACReader.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.
 
=========================================================================*/
 
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
 
#ifndef vtkSLACReader_h
#define vtkSLACReader_h
 
#include "vtkIONetCDFModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"
 
#include "vtkSmartPointer.h" // For internal method.
 
class vtkDataArraySelection;
class vtkDoubleArray;
class vtkIdTypeArray;
class vtkInformationIntegerKey;
class vtkInformationObjectBaseKey;
 
class VTKIONETCDF_EXPORT vtkSLACReader : public vtkMultiBlockDataSetAlgorithm
{
public:
  vtkTypeMacro(vtkSLACReader, vtkMultiBlockDataSetAlgorithm);
  static vtkSLACReader* New();
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  vtkGetStringMacro(MeshFileName);
  vtkSetStringMacro(MeshFileName);
 
 
  virtual void AddModeFileName(const char* fname);
  virtual void RemoveAllModeFileNames();
  virtual unsigned int GetNumberOfModeFileNames();
  virtual const char* GetModeFileName(unsigned int idx);
 
 
  vtkGetMacro(ReadInternalVolume, vtkTypeBool);
  vtkSetMacro(ReadInternalVolume, vtkTypeBool);
  vtkBooleanMacro(ReadInternalVolume, vtkTypeBool);
 
 
  vtkGetMacro(ReadExternalSurface, vtkTypeBool);
  vtkSetMacro(ReadExternalSurface, vtkTypeBool);
  vtkBooleanMacro(ReadExternalSurface, vtkTypeBool);
 
 
  vtkGetMacro(ReadMidpoints, vtkTypeBool);
  vtkSetMacro(ReadMidpoints, vtkTypeBool);
  vtkBooleanMacro(ReadMidpoints, vtkTypeBool);
 
 
  virtual int GetNumberOfVariableArrays();
  virtual const char* GetVariableArrayName(int index);
  virtual int GetVariableArrayStatus(const char* name);
  virtual void SetVariableArrayStatus(const char* name, int status);
 
 
  virtual void ResetFrequencyScales();
  virtual void SetFrequencyScale(int index, double scale);
 
 
  virtual void ResetPhaseShifts();
  virtual void SetPhaseShift(int index, double shift);
 
 
  virtual vtkDoubleArray* GetFrequencyScales();
  virtual vtkDoubleArray* GetPhaseShifts();
 
  static int CanReadFile(const char* filename);
 
  static vtkInformationIntegerKey* IS_INTERNAL_VOLUME();
 
  static vtkInformationIntegerKey* IS_EXTERNAL_SURFACE();
 
 
  static vtkInformationObjectBaseKey* POINTS();
  static vtkInformationObjectBaseKey* POINT_DATA();
 
 
  class VTKIONETCDF_EXPORT EdgeEndpoints
  {
  public:
    EdgeEndpoints()
      : MinEndPoint(-1)
      , MaxEndPoint(-1)
    {
    }
    EdgeEndpoints(vtkIdType endpointA, vtkIdType endpointB)
    {
      if (endpointA < endpointB)
      {
        this->MinEndPoint = endpointA;
        this->MaxEndPoint = endpointB;
      }
      else
      {
        this->MinEndPoint = endpointB;
        this->MaxEndPoint = endpointA;
      }
    }
    inline vtkIdType GetMinEndPoint() const { return this->MinEndPoint; }
    inline vtkIdType GetMaxEndPoint() const { return this->MaxEndPoint; }
    inline bool operator==(const EdgeEndpoints& other) const
    {
      return ((this->GetMinEndPoint() == other.GetMinEndPoint()) &&
        (this->GetMaxEndPoint() == other.GetMaxEndPoint()));
    }
 
  protected:
    vtkIdType MinEndPoint;
    vtkIdType MaxEndPoint;
  };
 
 
  class VTKIONETCDF_EXPORT MidpointCoordinates
  {
  public:
    MidpointCoordinates() = default;
    MidpointCoordinates(const double coord[3], vtkIdType id)
    {
      this->Coordinate[0] = coord[0];
      this->Coordinate[1] = coord[1];
      this->Coordinate[2] = coord[2];
      this->ID = id;
    }
    double Coordinate[3];
    vtkIdType ID;
  };
 
  enum
  {
    SURFACE_OUTPUT = 0,
    VOLUME_OUTPUT = 1,
    NUM_OUTPUTS = 2
  };
 
protected:
  vtkSLACReader();
  ~vtkSLACReader() override;
 
  class vtkInternal;
  vtkInternal* Internal;
 
  // Friend so vtkInternal can access MidpointIdMap
  // (so Sun CC compiler doesn't complain).
  friend class vtkInternal;
 
  char* MeshFileName;
 
  vtkTypeBool ReadInternalVolume;
  vtkTypeBool ReadExternalSurface;
  vtkTypeBool ReadMidpoints;
 
  bool ReadModeData;
 
  bool TimeStepModes;
 
  bool FrequencyModes;
 
  int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
 
  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
 
  static void SelectionModifiedCallback(
    vtkObject* caller, unsigned long eid, void* clientdata, void* calldata);
 
  virtual vtkIdType GetNumTuplesInVariable(int ncFD, int varId, int expectedNumComponents);
 
  virtual int CheckTetrahedraWinding(int meshFD);
 
  virtual int ReadConnectivity(
    int meshFD, vtkMultiBlockDataSet* surfaceOutput, vtkMultiBlockDataSet* volumeOutput);
 
 
  virtual int ReadTetrahedronInteriorArray(int meshFD, vtkIdTypeArray* connectivity);
  virtual int ReadTetrahedronExteriorArray(int meshFD, vtkIdTypeArray* connectivity);
 
  virtual vtkSmartPointer<vtkDataArray> ReadPointDataArray(int ncFD, int varId);
 
  enum
  {
    NumPerTetInt = 5,
    NumPerTetExt = 9
  };
 
 
  class VTKIONETCDF_EXPORT MidpointCoordinateMap
  {
  public:
    MidpointCoordinateMap();
    ~MidpointCoordinateMap();
 
    void AddMidpoint(const EdgeEndpoints& edge, const MidpointCoordinates& midpoint);
    void RemoveMidpoint(const EdgeEndpoints& edge);
    void RemoveAllMidpoints();
    vtkIdType GetNumberOfMidpoints() const;
 
    MidpointCoordinates* FindMidpoint(const EdgeEndpoints& edge);
 
  protected:
    class vtkInternal;
    vtkInternal* Internal;
 
  private:
    // Too lazy to implement these.
    MidpointCoordinateMap(const MidpointCoordinateMap&) = delete;
    void operator=(const MidpointCoordinateMap&) = delete;
  };
 
 
  class VTKIONETCDF_EXPORT MidpointIdMap
  {
  public:
    MidpointIdMap();
    ~MidpointIdMap();
 
    void AddMidpoint(const EdgeEndpoints& edge, vtkIdType midpoint);
    void RemoveMidpoint(const EdgeEndpoints& edge);
    void RemoveAllMidpoints();
    vtkIdType GetNumberOfMidpoints() const;
 
    vtkIdType* FindMidpoint(const EdgeEndpoints& edge);
 
    void InitTraversal();
    bool GetNextMidpoint(EdgeEndpoints& edge, vtkIdType& midpoint);
 
  protected:
    class vtkInternal;
    vtkInternal* Internal;
 
  private:
    // Too lazy to implement these.
    MidpointIdMap(const MidpointIdMap&) = delete;
    void operator=(const MidpointIdMap&) = delete;
  };
 
  virtual int ReadCoordinates(int meshFD, vtkMultiBlockDataSet* output);
 
  virtual int ReadMidpointCoordinates(
    int meshFD, vtkMultiBlockDataSet* output, MidpointCoordinateMap& map);
 
  virtual int ReadMidpointData(
    int meshFD, vtkMultiBlockDataSet* output, MidpointIdMap& midpointIds);
 
  virtual int RestoreMeshCache(vtkMultiBlockDataSet* surfaceOutput,
    vtkMultiBlockDataSet* volumeOutput, vtkMultiBlockDataSet* compositeOutput);
 
  virtual int ReadFieldData(const int* modeFDArray, int numModeFDs, vtkMultiBlockDataSet* output);
 
  virtual int InterpolateMidpointData(vtkMultiBlockDataSet* output, MidpointIdMap& map);
 
  vtkTimeStamp MeshReadTime;
 
  virtual int MeshUpToDate();
 
private:
  vtkSLACReader(const vtkSLACReader&) = delete;
  void operator=(const vtkSLACReader&) = delete;
};
 
#endif // vtkSLACReader_h