.. _program_listing_file_interfaces_rinex_nav_loader.h:

Program Listing for File rinex_nav_loader.h
===========================================

|exhale_lsh| :ref:`Return to documentation for file <file_interfaces_rinex_nav_loader.h>` (``interfaces/rinex_nav_loader.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   
   #pragma once
   
   #include <filesystem>
   #include <map>
   #include <string>
   #include <vector>
   
   #include "lupnt/core/definitions.h"
   
   namespace lupnt {
   
     class RinexNavLoader {
     public:
       RinexNavLoader() = default;
   
       explicit RinexNavLoader(const std::filesystem::path& filepath);
   
       explicit RinexNavLoader(const std::vector<std::filesystem::path>& filepaths);
   
       void LoadFile(const std::filesystem::path& filepath);
   
       const std::vector<std::string>& GetSatellites() const { return sats_; }
   
       bool HasSatellite(const std::string& sat_id) const;
   
       void GetPosVelClock(const std::string& sat_id, Real t_tai, Vec6& rv_ecef,
                           Real& clock_corr_s) const;
   
       Vec6 GetPosVel(const std::string& sat_id, Real t_tai) const;
   
     private:
       struct NavMessage {
         double epoch_tai = 0.0;
         double af0 = 0.0, af1 = 0.0, af2 = 0.0;
         double crs = 0.0, delta_n = 0.0, m0 = 0.0;
         double cuc = 0.0, ecc = 0.0, cus = 0.0, sqrt_a = 0.0;
         double toe = 0.0, cic = 0.0, omega0 = 0.0, cis = 0.0;
         double i0 = 0.0, crc = 0.0, omega = 0.0, omega_dot = 0.0, idot = 0.0;
         double week = 0.0;
       };
   
       std::vector<std::string> sats_;
       std::map<std::string, std::vector<NavMessage>> nav_;  // sat_id -> messages (any order)
   
       void ParseFile(const std::filesystem::path& filepath);
   
       int FindClosestMessage(const std::string& sat_id, double t_tai) const;
     };
   
   }  // namespace lupnt