src/marnav/nmea/wpl.cpp

   1 #include "wpl.hpp"
   2 #include <marnav/nmea/io.hpp>
   3 #include <marnav/nmea/convert.hpp>
   4
   5 namespace marnav
   6 {
   7 namespace nmea
   8 {
   9 MARNAV_NMEA_DEFINE_SENTENCE_PARSE_FUNC(wpl)
  10
  11 constexpr const char * wpl::TAG;
  12
  13 wpl::wpl()
  14         : sentence(ID, TAG, talker_id::global_positioning_system)
  15 {
  16 }
  17
  18 wpl::wpl(talker talk, fields::const_iterator first, fields::const_iterator last)
  19         : sentence(ID, TAG, talk)
  20 {
  21         if (std::distance(first, last) != 5)
  22                 throw std::invalid_argument{"invalid number of fields in wpl"};
  23
  24         read(*(first + 0), lat);
  25         read(*(first + 1), lat_hem);
  26         read(*(first + 2), lon);
  27         read(*(first + 3), lon_hem);
  28         read(*(first + 4), waypoint_id);
  29
  30         // instead of reading data into temporary lat/lon, let's correct values afterwards
  31         lat = correct_hemisphere(lat, lat_hem);
  32         lon = correct_hemisphere(lon, lon_hem);
  33 }
  34
  35 utils::optional<geo::longitude> wpl::get_longitude() const
  36 {
  37         return (lon && lon_hem) ? lon : utils::optional<geo::longitude>{};
  38 }
  39
  40 utils::optional<geo::latitude> wpl::get_latitude() const
  41 {
  42         return (lat && lat_hem) ? lat : utils::optional<geo::latitude>{};
  43 }
  44
  45 void wpl::set_lat(const geo::latitude & t)
  46 {
  47         lat = t;
  48         lat_hem = convert_hemisphere(t);
  49 }
  50
  51 void wpl::set_lon(const geo::longitude & t)
  52 {
  53         lon = t;
  54         lon_hem = convert_hemisphere(t);
  55 }
  56
  57 std::vector<std::string> wpl::get_data() const
  58 {
  59         return {to_string(lat), to_string(lat_hem), to_string(lon), to_string(lon_hem),
  60                 to_string(waypoint_id)};
  61 }
  62 }
  63 }