// Class A shipdata #include "ais.h" namespace libais { Ais5::Ais5(const char *nmea_payload, const size_t pad) : AisMsg(nmea_payload, pad), ais_version(0), imo_num(0), type_and_cargo(0), dim_a(0), dim_b(0), dim_c(0), dim_d(0), fix_type(0), eta_month(0), eta_day(0), eta_hour(0), eta_minute(0), draught(0.0), dte(0), spare(0) { if (!CheckStatus()) { return; } if (pad != 2 || num_chars != 71) { status = AIS_ERR_BAD_BIT_COUNT; return; } assert(message_id == 5); bits.SeekTo(38); ais_version = bits.ToUnsignedInt(38, 2); imo_num = bits.ToUnsignedInt(40, 30); callsign = bits.ToString(70, 42); name = bits.ToString(112, 120); type_and_cargo = bits.ToUnsignedInt(232, 8); dim_a = bits.ToUnsignedInt(240, 9); dim_b = bits.ToUnsignedInt(249, 9); dim_c = bits.ToUnsignedInt(258, 6); dim_d = bits.ToUnsignedInt(264, 6); fix_type = bits.ToUnsignedInt(270, 4); eta_month = bits.ToUnsignedInt(274, 4); eta_day = bits.ToUnsignedInt(278, 5); eta_hour = bits.ToUnsignedInt(283, 5); eta_minute = bits.ToUnsignedInt(288, 6); draught = bits.ToUnsignedInt(294, 8) / 10.; destination = bits.ToString(302, 120); dte = bits[422]; spare = bits[423]; assert(bits.GetRemaining() == 0); status = AIS_OK; } #if 0 ostream& operator<< (ostream& o, const Ais5 &msg) { return o << 5 << ": " << msg.mmsi << " \"" << msg.name << "\" " << msg.type_and_cargo << " " << msg.dim_a + msg.dim_b << "x" << msg.dim_c + msg.dim_d << "x" << msg.draught << "m"; } #endif } // namespace libais