SP3Header.hpp

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#pragma ident "$Id: SP3Header.hpp 114 2006-09-13 03:15:34Z ocibu $"

#ifndef GPSTK_SP3HEADER_HPP
#define GPSTK_SP3HEADER_HPP

//============================================================================
//
//  This file is part of GPSTk, the GPS Toolkit.
//
//  The GPSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 2.1 of the License, or
//  any later version.
//
//  The GPSTk is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GPSTk; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//  
//  Copyright 2004, The University of Texas at Austin
//
//============================================================================

//============================================================================
//
//This software developed by Applied Research Laboratories at the University of
//Texas at Austin, under contract to an agency or agencies within the U.S. 
//Department of Defense. The U.S. Government retains all rights to use,
//duplicate, distribute, disclose, or release this software. 
//
//Pursuant to DoD Directive 523024 
//
// DISTRIBUTION STATEMENT A: This software has been approved for public 
//                           release, distribution is unlimited.
//
//=============================================================================

#include <string>
#include <map>
#include <vector>
#include "DayTime.hpp"
#include "SP3Base.hpp"
#include "SP3SatID.hpp"

namespace gpstk
{

   class SP3Header : public SP3Base
   {
   public:

      enum TimeSystem
      {
         timeGPS=1,
         timeUTC
      };

      SP3Header() : version('a'), numberOfEpochs(0),
                    system(1, SP3SatID::systemGPS), timeSystem(timeGPS),
                    basePV(0.0), baseClk(0.0)
                    {}

      virtual ~SP3Header() {}

      std::string timeSystemString() const
      {
         switch(timeSystem) {
            case timeGPS: return "GPS";
            case timeUTC: return "UTC";
            default: return "??";
         }
      };

         // The next four lines is our common interface
      virtual bool isHeader() const {return true;}
     
      virtual void dump(std::ostream& s) const;

      char version;             
      char pvFlag;              

      DayTime time;             
      double epochInterval;     
      int numberOfEpochs;       
      std::string dataUsed;     
      std::string coordSystem;  
      std::string orbitType;    
      std::string agency;       
      // the following four are specific to version 'c'
      SP3SatID system;          
      TimeSystem timeSystem;    
      double basePV;            
      double baseClk;           

      std::map<SatID, short> satList;  
      std::vector<std::string> comments; 

      friend class SP3Data;

   protected:
      virtual void reallyPutRecord(FFStream& s) const 
         throw(std::exception, FFStreamError,
               StringUtils::StringException);

      virtual void reallyGetRecord(FFStream& s) 
         throw(std::exception, FFStreamError,
               StringUtils::StringException);
   };


}  // namespace

#endif

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