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

  Program:   Visualization Toolkit
  Module:    vtkExodusIIWriter.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 (c) Sandia Corporation
 See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/

#ifndef vtkExodusIIWriter_h
#define vtkExodusIIWriter_h

#include "vtkIOExodusModule.h" // For export macro
#include "vtkWriter.h"
#include "vtkSmartPointer.h" // For vtkSmartPointer

#include <vector> // STL Header
#include <map>    // STL Header
#include <string> // STL Header

class vtkModelMetadata;
class vtkDoubleArray;
class vtkIntArray;
class vtkUnstructuredGrid;

class VTKIOEXODUS_EXPORT vtkExodusIIWriter : public vtkWriter
{
public:
  static vtkExodusIIWriter *New ();
  vtkTypeMacro(vtkExodusIIWriter,vtkWriter);
  void PrintSelf (ostream& os, vtkIndent indent);

  void SetModelMetadata (vtkModelMetadata*);
  vtkGetObjectMacro(ModelMetadata, vtkModelMetadata);

  vtkSetStringMacro(FileName);
  vtkGetStringMacro(FileName);

  vtkSetMacro(StoreDoubles, int);
  vtkGetMacro(StoreDoubles, int);

  vtkSetMacro(GhostLevel, int);
  vtkGetMacro(GhostLevel, int);

  vtkSetMacro(WriteOutBlockIdArray, int);
  vtkGetMacro(WriteOutBlockIdArray, int);
  vtkBooleanMacro(WriteOutBlockIdArray, int);

  vtkSetMacro(WriteOutGlobalNodeIdArray, int);
  vtkGetMacro(WriteOutGlobalNodeIdArray, int);
  vtkBooleanMacro(WriteOutGlobalNodeIdArray, int);

  vtkSetMacro(WriteOutGlobalElementIdArray, int);
  vtkGetMacro(WriteOutGlobalElementIdArray, int);
  vtkBooleanMacro(WriteOutGlobalElementIdArray, int);

  vtkSetMacro(WriteAllTimeSteps, int);
  vtkGetMacro(WriteAllTimeSteps, int);
  vtkBooleanMacro(WriteAllTimeSteps, int);

  vtkSetStringMacro(BlockIdArrayName);
  vtkGetStringMacro(BlockIdArrayName);

protected:
  vtkExodusIIWriter ();
  ~vtkExodusIIWriter ();

  vtkModelMetadata* ModelMetadata;

  char *BlockIdArrayName;

  char *FileName;
  int fid;

  int NumberOfProcesses;
  int MyRank;

  int PassDoubles;

  int StoreDoubles;
  int GhostLevel;
  int WriteOutBlockIdArray;
  int WriteOutGlobalNodeIdArray;
  int WriteOutGlobalElementIdArray;
  int WriteAllTimeSteps;
  int NumberOfTimeSteps;

  vtkDoubleArray* TimeValues;
  int CurrentTimeIndex;
  int FileTimeOffset;
  bool TopologyChanged;

//BTX
  vtkDataObject *OriginalInput;
  std::vector< vtkSmartPointer<vtkUnstructuredGrid> > FlattenedInput;
  std::vector< vtkSmartPointer<vtkUnstructuredGrid> > NewFlattenedInput;

  std::vector< vtkIntArray* > BlockIdList;

  struct Block
  {
    Block ()
      {
      this->Type = 0;
      this->NumElements = 0;
      this->ElementStartIndex = -1;
      this->NodesPerElement = 0;
      this->EntityCounts = std::vector<int>();
      this->EntityNodeOffsets = std::vector<int>();
      this->GridIndex = 0;
      this->OutputIndex = -1;
      this->NumAttributes = 0;
      this->BlockAttributes = 0;
      };
    int Type;
    int NumElements;
    int ElementStartIndex;
    int NodesPerElement;
    std::vector<int> EntityCounts;
    std::vector<int> EntityNodeOffsets;
    size_t GridIndex;
    // std::vector<int> CellIndex;
    int OutputIndex;
    int NumAttributes;
    float *BlockAttributes; // Owned by metamodel or null.  Don't delete.
  };
  std::map<int, Block> BlockInfoMap;
  int NumCells, NumPoints, MaxId;

  std::vector<vtkIdType*> GlobalElementIdList;
  std::vector<vtkIdType*> GlobalNodeIdList;
//ETX
  int AtLeastOneGlobalElementIdList;
  int AtLeastOneGlobalNodeIdList;

//BTX
  struct VariableInfo
  {
    int NumComponents;
    int InIndex;
    int ScalarOutOffset;
    std::vector<std::string> OutNames;
  };
  std::map<std::string, VariableInfo> GlobalVariableMap;
  std::map<std::string, VariableInfo> BlockVariableMap;
  std::map<std::string, VariableInfo> NodeVariableMap;
  int NumberOfScalarGlobalArrays;
  int NumberOfScalarElementArrays;
  int NumberOfScalarNodeArrays;
//ETX

//BTX
  std::vector< std::vector<int> > CellToElementOffset;
//ETX
  // By BlockId, and within block ID by element variable, with variables
  // appearing in the same order in which they appear in OutputElementArrayNames

  int *BlockElementVariableTruthTable;
  int AllVariablesDefinedInAllBlocks;

  int BlockVariableTruthValue(int blockIdx, int varIdx);

//BTX
  char *StrDupWithNew (const char *s);
  void StringUppercase (std::string& str);
//ETX

  int ProcessRequest (vtkInformation* request,
                      vtkInformationVector** inputVector,
                      vtkInformationVector* outputVector);

  int RequestInformation (vtkInformation* request,
                          vtkInformationVector** inputVector,
                          vtkInformationVector* outputVector);

  virtual int RequestUpdateExtent (vtkInformation* request,
                                   vtkInformationVector** inputVector,
                                   vtkInformationVector* outputVector);

  int FillInputPortInformation (int port, vtkInformation* info);

  int RequestData (vtkInformation* request,
                   vtkInformationVector** inputVector,
                   vtkInformationVector* outputVector);

  void WriteData ();

  int FlattenHierarchy (vtkDataObject* input, bool& changed);

  int CreateNewExodusFile ();
  void CloseExodusFile ();

  int IsDouble ();
  void RemoveGhostCells ();
  int CheckParametersInternal (int NumberOfProcesses, int MyRank);
  virtual int CheckParameters ();
  // If writing in parallel multiple time steps exchange after each time step
  // if we should continue the execution. Pass local continueExecution as a
  // parameter and return the global continueExecution.
  virtual int GlobalContinueExecuting(int localContinueExecution);
  int CheckInputArrays ();
  virtual void CheckBlockInfoMap();
  int ConstructBlockInfoMap ();
  int ConstructVariableInfoMaps ();
  int ParseMetadata ();
  int CreateDefaultMetadata ();
  char *GetCellTypeName (int t);

  int CreateBlockIdMetadata(vtkModelMetadata *em);
  int CreateBlockVariableMetadata (vtkModelMetadata* em);

//BTX
  void ConvertVariableNames (std::map<std::string, VariableInfo>& variableMap);
  char **FlattenOutVariableNames (
            int nScalarArrays,
            const std::map<std::string, VariableInfo>& variableMap);
  std::string CreateNameForScalarArray (const char *root,
                                           int component,
                                           int numComponents);

  std::map<vtkIdType, vtkIdType> *LocalNodeIdMap;
  std::map<vtkIdType, vtkIdType> *LocalElementIdMap;
//ETX
  vtkIdType GetNodeLocalId(vtkIdType id);
  vtkIdType GetElementLocalId(vtkIdType id);

  int WriteInitializationParameters ();
  int WriteInformationRecords ();
  int WritePoints ();
  int WriteCoordinateNames ();
  int WriteGlobalPointIds ();
  int WriteBlockInformation ();
  int WriteGlobalElementIds ();
  int WriteVariableArrayNames ();
  int WriteNodeSetInformation ();
  int WriteSideSetInformation ();
  int WriteProperties ();
  int WriteNextTimeStep ();
  vtkIntArray* GetBlockIdArray (
    const char* BlockIdArrayName, vtkUnstructuredGrid* input);
  static bool SameTypeOfCells (vtkIntArray* cellToBlockId,
                               vtkUnstructuredGrid* input);

//BTX
  double ExtractGlobalData (const char *name, int comp, int ts);
  int WriteGlobalData (int timestep, vtkDataArray *buffer);
  void ExtractCellData (const char *name, int comp, vtkDataArray *buffer);
  int WriteCellData (int timestep, vtkDataArray *buffer);
  void ExtractPointData (const char *name, int comp, vtkDataArray *buffer);
  int WritePointData (int timestep, vtkDataArray *buffer);
//ETX


private:
  vtkExodusIIWriter (const vtkExodusIIWriter&); // Not Implemented
  void operator= (const vtkExodusIIWriter&); // Not Implemented
};

#endif