SatPassIterator.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
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 3.0 of the License, or
//  any later version.
//
//  The GNSSTk 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 GNSSTk; if not, write to the Free Software Foundation,
//  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
//
//  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
//
//==============================================================================
 
//==============================================================================
//
//  This software was 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.
//
//==============================================================================
 
 
#ifndef GNSSTK_SATELLITE_PASS_ITERATOR_INCLUDE
#define GNSSTK_SATELLITE_PASS_ITERATOR_INCLUDE
 
// -------------------------------------------------------------------------------
#include "SatPass.hpp"
 
namespace gnsstk
{
   // -------------------------------------------------------------------------------
   class SatPassIterator
   {
   public:
      explicit SatPassIterator(std::vector<SatPass>& splist, bool rev = false,
                               bool dbug = false);
 
      void reset(bool rev = false, bool dbug = false);
 
      int next(std::map<unsigned int, unsigned int>& indexMap);
 
      int next(RinexObsData& robs);
 
      Epoch getFirstTime() { return FirstTime; }
 
      Epoch getLastTime() { return LastTime; }
 
      Epoch getFirstGoodTime() const
      {
         Epoch ttag = LastTime;
         for (int i = 0; i < SPList.size(); i++)
            if (SPList[i].getFirstGoodTime() < ttag)
            {
               ttag = SPList[i].getFirstGoodTime();
            }
         return ttag;
      }
 
      Epoch getLastGoodTime() const
      {
         Epoch ttag = FirstTime;
         for (int i = 0; i < SPList.size(); i++)
            if (SPList[i].getLastGoodTime() > ttag)
            {
               ttag = SPList[i].getLastGoodTime();
            }
         return ttag;
      }
 
      double getDT() { return DT; }
 
      std::map<unsigned int, unsigned int> getIndexes()
      {
         return nextIndexMap;
      }
 
   private:
      SatPassIterator(const SatPassIterator &);            // DO NOT implement
      SatPassIterator& operator=(const SatPassIterator &); // DO NOT implement
 
      bool debug;
 
      bool timeReverse;
 
      int currentN; // current time = FirstTime + currentN*DT
 
      double DT;
 
      Epoch FirstTime, LastTime;
 
      std::map<RinexSatID, int> listIndex;
 
      std::map<RinexSatID, int> dataIndex;
 
      std::map<RinexSatID, int> countOffset;
 
      std::vector<int> indexStatus;
 
      std::vector<SatPass> &SPList;
 
      std::map<unsigned int, unsigned int> nextIndexMap;
 
   }; // end class SatPassIterator
 
} // namespace gnsstk
 
#endif // GNSSTK_SATELLITE_PASS_ITERATOR_INCLUDE