# VectorNav C++ Library: Class Members - Variables

### - u -

- uncertainty : vn::sensors::GpsCompassBaselineRegister , vn::sensors::GpsCompassEstimatedBaselineRegister
- useFoam : vn::sensors::InsAdvancedConfigurationRegister
- useGravityModel : vn::sensors::ReferenceVectorConfigurationRegister
- useMag : vn::sensors::InsAdvancedConfigurationRegister
- useMagModel : vn::sensors::ReferenceVectorConfigurationRegister
- usePres : vn::sensors::InsAdvancedConfigurationRegister