/**
* Parse a "$D" sentence.
*
* Example: "$D,+0,100554,+25,18,+31,,0,-356,+25,+11,115,96*6A"
*/
static bool
LeonardoParseD(NMEAInputLine &line, NMEA_INFO &info)
{
fixed value;
// 0 = vario [dm/s]
if (line.read_checked(value))
info.ProvideTotalEnergyVario(value / 10);
// 1 = air pressure [Pa]
if (line.skip() == 0)
/* short "$C" sentence ends after airspeed */
return true;
// 2 = netto vario [dm/s]
if (line.read_checked(value))
info.ProvideNettoVario(value / 10);
// 3 = airspeed [km/h]
/* XXX is that TAS or IAS? */
if (line.read_checked(value))
info.ProvideTrueAirspeed(Units::ToSysUnit(value, unKiloMeterPerHour));
// 4 = temperature [deg C]
fixed oat;
info.TemperatureAvailable = line.read_checked(oat);
if (info.TemperatureAvailable)
info.OutsideAirTemperature = Units::ToSysUnit(oat, unGradCelcius);
// 5 = compass [degrees]
/* XXX unsupported by XCSoar */
// 6 = optimal speed [km/h]
/* XXX unsupported by XCSoar */
// 7 = equivalent MacCready [cm/s]
/* XXX unsupported by XCSoar */
// 8 = wind speed [km/h]
/* not used here, the "$C" record repeats it together with the
direction */
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;
}