src/marnav/nmea/tpr.cpp

   1 #include <marnav/nmea/tpr.hpp>
   2 #include <marnav/nmea/io.hpp>
   3 #include "checks.hpp"
   4
   5 namespace marnav
   6 {
   7 namespace nmea
   8 {
   9 constexpr sentence_id tpr::ID;
  10 constexpr const char * tpr::TAG;
  11
  12 tpr::tpr()
  13         : sentence(ID, TAG, talker::global_positioning_system)
  14 {
  15 }
  16
  17 tpr::tpr(talker talk, fields::const_iterator first, fields::const_iterator last)
  18         : sentence(ID, TAG, talk)
  19 {
  20         if (std::distance(first, last) != 6)
  21                 throw std::invalid_argument{"invalid number of fields in tpr"};
  22
  23         unit::distance range_unit;
  24         unit::distance depth_unit;
  25
  26         read(*(first + 0), range_);
  27         read(*(first + 1), range_unit);
  28         read(*(first + 2), bearing_);
  29         // separator omitted intentionally
  30         read(*(first + 4), depth_);
  31         read(*(first + 5), depth_unit);
  32
  33         check_value(range_unit, {unit::distance::meter}, "range_unit");
  34         check_value(depth_unit, {unit::distance::meter}, "depth_unit");
  35 }
  36
  37 void tpr::append_data_to(std::string & s) const
  38 {
  39         append(s, to_string(range_));
  40         append(s, to_string(unit::distance::meter));
  41         append(s, to_string(bearing_));
  42         append(s, 'P');
  43         append(s, to_string(depth_));
  44         append(s, to_string(unit::distance::meter));
  45 }
  46 }
  47 }