text: /*=========================================================================
  
   Program:   Visualization Toolkit
   Module:    vtkAMREnzoReader.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.
  
   =========================================================================*/
  // .NAME vtkAMREnzoReader.h -- Reader for Enzo AMR datasets.
  //
  // .SECTION Description
  // A concrete instance of vtkAMRBaseReader that implements functionality
  // for reading Enzo AMR datasets.
  
  #ifndef vtkAMREnzoReader_h
  #define vtkAMREnzoReader_h
  
  #include "vtkIOAMRModule.h" // For export macro
  #include "vtkAMRBaseReader.h"
  
  #include <map>     // For STL map
  #include <string>  // For std::string
  
  class vtkOverlappingAMR;
  class vtkEnzoReaderInternal;
  
  class VTKIOAMR_EXPORT vtkAMREnzoReader : public vtkAMRBaseReader
  {
  public:
    static vtkAMREnzoReader* New();
    vtkTypeMacro(vtkAMREnzoReader,vtkAMRBaseReader);
    void PrintSelf(ostream &os, vtkIndent indent );
  
    // Description:
    // Set/Get whether data should be converted to CGS
    vtkSetMacro( ConvertToCGS, int );
    vtkGetMacro( ConvertToCGS, int );
    vtkBooleanMacro( ConvertToCGS, int );
  
    // Description:
    // See vtkAMRBaseReader::GetNumberOfBlocks
    int GetNumberOfBlocks();
  
    // Description:
    // See vtkAMRBaseReader::GetNumberOfLevels
    int GetNumberOfLevels();
  
    // Description:
    // See vtkAMRBaseReader::SetFileName
    void SetFileName( const char* fileName );
  
  protected:
    vtkAMREnzoReader();
    ~vtkAMREnzoReader();
  
    // Description:
    // Parses the parameters file and extracts the
    // conversion factors that are used to convert
    // to CGS units.
    void ParseConversionFactors();
  
    // Description:
    // Given an array name of the form "array[idx]" this method
    // extracts and returns the corresponding index idx.
    int GetIndexFromArrayName( std::string arrayName );
  
    // Description:
    // Given the label string, this method parses the attribute label and
    // the string index.
    void ParseLabel(const std::string labelString,int &idx,std::string &label);
  
    // Description:
    // Given the label string, this method parses the corresponding attribute
    // index and conversion factor
    void ParseCFactor(const std::string labelString, int &idx, double &factor );
  
    // Description:
    // Given the variable name, return the conversion factor used to convert
    // the data to CGS. These conversion factors are read directly from the
    // parameters file when the filename is set.
    double GetConversionFactor( const std::string name );
  
    // Description:
    // See vtkAMRBaseReader::ReadMetaData
    void ReadMetaData();
  
    // Description:
    // See vtkAMRBaseReader::GetBlockLevel
    int GetBlockLevel( const int blockIdx );
  
    void ComputeStats(vtkEnzoReaderInternal* internal, std::vector<int>& blocksPerLevel, double min[3]);
  
    // Description:
    // See vtkAMRBaseReader::FillMetaData
    int FillMetaData( );
  
    // Description:
    // See vtkAMRBaseReader::GetAMRGrid
    vtkUniformGrid* GetAMRGrid( const int blockIdx );
  
    // Description:
    // See vtkAMRBaseReader::GetAMRGridData
    void GetAMRGridData(
        const int blockIdx, vtkUniformGrid *block, const char *field);
  
    // Description:
    // See vtkAMRBaseReader::GetAMRGridData
    void GetAMRGridPointData(
        const int vtkNotUsed(blockIdx), vtkUniformGrid *vtkNotUsed(block), const char *vtkNotUsed(field)) {;};
  
    // Description:
    // See vtkAMRBaseReader::SetUpDataArraySelections
    void SetUpDataArraySelections();
  
    int ConvertToCGS;
    bool IsReady;
  
  private:
    vtkAMREnzoReader( const vtkAMREnzoReader& ); // Not Implemented
    void operator=(const vtkAMREnzoReader& ); // Not Implemented
  
    vtkEnzoReaderInternal *Internal;
  
    std::map< std::string, int > label2idx;
    std::map< int, double >    conversionFactors;
  };
  
  #endif /* vtkAMREnzoReader_h */
  