src/marnav/ais/message_19.cpp

   1 #include "message_19.hpp"
   2 #include <marnav/ais/angle.hpp>
   3 #include <marnav/utils/unique.hpp>
   4
   5 namespace marnav
   6 {
   7 namespace ais
   8 {
   9
  10 message_19::message_19()
  11         : message_19(ID)
  12 {
  13 }
  14
  15 message_19::message_19(message_id id)
  16         : message(id)
  17         , shipname("@@@@@@@@@@@@@@@@@@@@")
  18 {
  19 }
  20
  21 std::unique_ptr<message> message_19::parse(const raw & bits)
  22 {
  23         if (bits.size() != SIZE_BITS)
  24                 throw std::invalid_argument{"invalid number of bits in message_19::parse"};
  25
  26         std::unique_ptr<message> result = utils::make_unique<message_19>();
  27         message_19 & msg = static_cast<message_19 &>(*result);
  28
  29         msg.read_data(bits);
  30
  31         return result;
  32 }
  33
  34 void message_19::read_data(const raw & bits)
  35 {
  36         bits.get(repeat_indicator, 6, 2);
  37         bits.get(mmsi, 8, 30);
  38         // regional reserved: 38 - 45
  39         bits.get(sog, 46, 10);
  40         bits.get(position_accuracy, 56, 1);
  41         bits.get(longitude_minutes, 57, 28);
  42         bits.get(latitude_minutes, 85, 27);
  43         bits.get(cog, 112, 12);
  44         bits.get(hdg, 124, 9);
  45         bits.get(timestamp, 133, 6);
  46         // regional reserved: 139 - 142
  47         shipname = read_string(bits, 143, 20);
  48         bits.get(shiptype, 263, 8);
  49         bits.get(to_bow, 271, 9);
  50         bits.get(to_stern, 280, 9);
  51         bits.get(to_port, 289, 6);
  52         bits.get(to_starboard, 295, 6);
  53         bits.get(epfd_fix, 301, 4);
  54         bits.get(raim, 305, 1);
  55         bits.get(dte, 306, 1);
  56         bits.get(assigned, 307, 1);
  57         // spare: 308 - 311
  58 }
  59
  60 raw message_19::get_data() const
  61 {
  62         raw bits{SIZE_BITS};
  63
  64         bits.set(type(), 0, 6);
  65         bits.set(repeat_indicator, 6, 2);
  66         bits.set(mmsi, 8, 30);
  67         bits.set(sog, 46, 10);
  68         bits.set(position_accuracy, 56, 1);
  69         bits.set(longitude_minutes, 57, 28);
  70         bits.set(latitude_minutes, 85, 27);
  71         bits.set(cog, 112, 12);
  72         bits.set(hdg, 124, 9);
  73         bits.set(timestamp, 133, 6);
  74         write_string(bits, 143, 20, shipname);
  75         bits.set(shiptype, 263, 8);
  76         bits.set(to_bow, 271, 9);
  77         bits.set(to_stern, 280, 9);
  78         bits.set(to_port, 289, 6);
  79         bits.set(to_starboard, 295, 6);
  80         bits.set(epfd_fix, 301, 4);
  81         bits.set(raim, 305, 1);
  82         bits.set(dte, 306, 1);
  83         bits.set(assigned, 307, 1);
  84
  85         return bits;
  86 }
  87
  88 geo::longitude message_19::get_longitude() const { return to_geo_longitude(longitude_minutes); }
  89
  90 geo::latitude message_19::get_latitude() const { return to_geo_latitude(latitude_minutes); }
  91
  92 void message_19::set_longitude(const geo::longitude & t)
  93 {
  94         longitude_minutes = to_longitude_minutes(t);
  95 }
  96
  97 void message_19::set_latitude(const geo::latitude & t)
  98 {
  99         latitude_minutes = to_latitude_minutes(t);
 100 }
 101 }
 102 }