Function VectorMath.QuaternionAngle
        
                QuaternionAngle
        
                (quaternion rot)
    
            
            Number of radians that this quaternion rotates around its axis of rotation.
                Public
                    Static
            
        float QuaternionAngle (
quaternion  |     rot  |         
Number of radians that this quaternion rotates around its axis of rotation.
Will be in the range [-PI, PI].
Note
A quaternion of q and -q represent the same rotation, but their axis of rotation point in opposite directions, so the angle will be different.