src/marnav/nmea/wcv.hpp

   1 #ifndef __MARNAV__NMEA__WCV__HPP__
   2 #define __MARNAV__NMEA__WCV__HPP__
   3
   4 #include <marnav/nmea/sentence.hpp>
   5 #include <marnav/nmea/waypoint.hpp>
   6 #include <marnav/utils/optional.hpp>
   7
   8 namespace marnav
   9 {
  10 namespace nmea
  11 {
  12 MARNAV_NMEA_DECLARE_SENTENCE_PARSE_FUNC(wcv)
  13
  14 /// @brief WCV - Waypoint Closure Velocity
  15 ///
  16 /// @code
  17 ///        1   2 3
  18 ///        |   | |
  19 /// $--WCV,x.x,N,c--c*hh<CR><LF>
  20 /// @endcode
  21 ///
  22 /// Field Number:
  23 /// 1. Velocity
  24 /// 2. Velocity unit
  25 ///    - N = knots
  26 /// 3. Waypoint ID
  27 ///
  28 class wcv : public sentence
  29 {
  30         MARNAV_NMEA_SENTENCE_FRIENDS(wcv)
  31
  32 public:
  33         constexpr static const sentence_id ID = sentence_id::WCV;
  34         constexpr static const char * TAG = "WCV";
  35
  36         wcv();
  37         wcv(const wcv &) = default;
  38         wcv & operator=(const wcv &) = default;
  39         wcv(wcv &&) = default;
  40         wcv & operator=(wcv &&) = default;
  41
  42 protected:
  43         wcv(talker talk, fields::const_iterator first, fields::const_iterator last);
  44         virtual std::vector<std::string> get_data() const override;
  45
  46 private:
  47         utils::optional<double> speed;
  48         utils::optional<unit::velocity> speed_unit;
  49         utils::optional<waypoint> waypoint_id;
  50
  51 public:
  52         decltype(speed) get_speed() const { return speed; }
  53         decltype(speed_unit) get_speed_unit() const { return speed_unit; }
  54         decltype(waypoint_id) get_waypoint_id() const { return waypoint_id; }
  55
  56         void set_speed(double t) noexcept;
  57         void set_waypoint(const waypoint & id) { waypoint_id = id; }
  58 };
  59 }
  60 }
  61
  62 #endif