GCQuaternion A quaternion that represents a controller’s measurement of attitude. Declarationstruct GCQuaternion TopicsGetting Quaternion ValuesxyzwInitializersinit()init(x:y:z:w:) RelationshipsConforms ToBitwiseCopyableSendable See AlsoAccessing Attitude and Rotation DataattituderotationRateGCRotationRateGCEulerAngles