Example #1
0
bool
OpenVarioDevice::POV(NMEAInputLine &line, NMEAInfo &info)
{
  /*
   * Type definitions:
   *
   * E: TE vario in m/s
   * P: static pressure in hPa
   * Q: dynamic pressure in Pa
   * R: total pressure in hPa
   * S: true airspeed in km/h
   * T: temperature in deg C
   */

  while (!line.IsEmpty()) {
    char type = line.ReadOneChar();
    if (type == '\0')
      break;

    fixed value;
    if (!line.ReadChecked(value))
      break;

    switch (type) {
      case 'E': {
        info.ProvideTotalEnergyVario(value);
        break;
      }
      case 'P': {
        AtmosphericPressure pressure = AtmosphericPressure::HectoPascal(value);
        info.ProvideStaticPressure(pressure);
        break;
      }
      case 'Q': {
        AtmosphericPressure pressure = AtmosphericPressure::Pascal(value);
        info.ProvideDynamicPressure(pressure);
        break;
      }
      case 'R': {
        AtmosphericPressure pressure = AtmosphericPressure::HectoPascal(value);
        info.ProvidePitotPressure(pressure);
        break;
      }
      case 'S': {
        value = Units::ToSysUnit(value, Unit::KILOMETER_PER_HOUR);
        info.ProvideTrueAirspeed(value);
        break;
      }
      case 'T': {
        info.temperature = CelsiusToKelvin(value);
        info.temperature_available = true;
        break;
      }
    }
  }

  return true;
}