StdNavTimeOffset.hpp

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//==============================================================================
//
//  This file is part of GNSSTk, the ARL:UT GNSS Toolkit.
//
//  The GNSSTk is free software; you can redistribute it and/or modify
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//  This software was developed by Applied Research Laboratories at the
//  University of Texas at Austin.
//  Copyright 2004-2022, The Board of Regents of The University of Texas System
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//==============================================================================
 
 
//==============================================================================
//
//  This software was developed by Applied Research Laboratories at the
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#ifndef GNSSTK_STDNAVTIMEOFFSET_HPP
#define GNSSTK_STDNAVTIMEOFFSET_HPP
 
#include "TimeOffsetData.hpp"
#include "TimeSystem.hpp"
 
namespace gnsstk
{
 
 
   class StdNavTimeOffset : public TimeOffsetData
   {
   public:
      StdNavTimeOffset();
 
      void dump(std::ostream& s, DumpDetail dl) const override;
 
      bool getOffset(TimeSystem fromSys, TimeSystem toSys,
                     const CommonTime& when, double& offset)
         const override;
 
      TimeCvtSet getConversions() const override;
 
      virtual double effStart() const
      { return 6 * 3600; }
      virtual double effEnd() const
      { return 6 * 3600; }
 
         // These terms are referenced in the ICDs for multiple
         // systems, but you can find their definition in places like
         // IS-GPS-200 30.3.3.6.2.  They occasionally have different
         // names like wnot, t0t, wn0t, etc., but the terms originate
         // from the nav message, though some may be zero (unused).
         // They are meant to be set by the NavDataFactory classes,
         // but are made available for the user to read.  The user
         // generally should not be changing these values.
 
      TimeSystem src;     
      TimeSystem tgt;     
      double a0;          
      double a1;          
      double a2;          
      double deltatLS;    
      CommonTime refTime; 
      CommonTime effTime; 
      double tot;         
      unsigned wnot;      
         // These terms are not used in computing an offset, they're
         // more of a warning of an upcoming change in the offset.  We
         // keep them here for user convenience.
      unsigned wnLSF;   
      unsigned dn;      
      double deltatLSF; 
      unsigned dnSun;   
   };
 
 
}
 
#endif // GNSSTK_STDNAVTIMEOFFSET_HPP