beta 76 Source/modules/device_orientation/DeviceOrientationData.cpp double DeviceOrientationData::beta() const beta 68 Source/modules/device_orientation/DeviceOrientationEvent.cpp double DeviceOrientationEvent::beta(bool& isNull) const beta 51 Source/modules/device_orientation/DeviceRotationRate.cpp double DeviceRotationRate::beta(bool& isNull) const