/**
* Parse a "$VMVABD" sentence.
*
* Example: "$VMVABD,0000.0,M,0547.0,M,-0.0,,,MS,0.0,KH,22.4,C*65"
*/
static bool
FlytecParseVMVABD(NMEAInputLine &line, NMEA_INFO &info)
{
fixed value;
// 0,1 = GPS altitude, unit
if (line.read_checked_compare(info.GPSAltitude, "M"))
info.GPSAltitudeAvailable.Update(info.clock);
// 2,3 = baro altitude, unit
if (line.read_checked_compare(value, "M"))
info.ProvideBaroAltitudeTrue(value);
// 4-7 = integrated vario, unit
line.skip(4);
// 8,9 = indicated or true airspeed, unit
if (line.read_checked_compare(value, "KH"))
// XXX is that TAS or IAS? Documentation isn't clear.
info.ProvideBothAirspeeds(Units::ToSysUnit(value, unKiloMeterPerHour));
// 10,11 = temperature, unit
info.TemperatureAvailable =
line.read_checked_compare(value, "C");
if (info.TemperatureAvailable)
info.OutsideAirTemperature = Units::ToSysUnit(value, unGradCelcius);
return true;
}
/**
* Parse a "$C" sentence.
*
* Example: "$C,+2025,-7,+18,+25,+29,122,314,314,0,-356,+25,45,T*3D"
*/
static bool
LeonardoParseC(NMEAInputLine &line, NMEA_INFO &info)
{
fixed value;
// 0 = altitude [m]
if (line.read_checked(value))
info.ProvideBaroAltitudeTrue(value);
// 1 = vario [dm/s]
if (line.read_checked(value))
info.ProvideTotalEnergyVario(value / 10);
// 2 = airspeed [km/h]
/* XXX is that TAS or IAS? */
if (line.read_checked(value))
info.ProvideTrueAirspeed(Units::ToSysUnit(value, unKiloMeterPerHour));
// 3 = netto vario [dm/s]
if (line.read_checked(value))
info.ProvideNettoVario(value / 10);
else
/* short "$C" sentence ends after airspeed */
return true;
// 4 = temperature [deg C]
fixed oat;
info.TemperatureAvailable = line.read_checked(oat);
if (info.TemperatureAvailable)
info.OutsideAirTemperature = Units::ToSysUnit(oat, unGradCelcius);
// 10 = wind speed [km/h]
// 11 = wind direction [degrees]
SpeedVector wind;
if (ReadSpeedVector(line, wind))
info.ProvideExternalWind(wind);
return true;
}