Rotate this vector by the given quaternion <code>quat</code> and store the result in <code>this</code>.
@see Quaterniond#transform(Vector3d)
@param quat the quaternion to rotate this vector @return this
See Implementation
Rotate this vector by the given quaternion <code>quat</code> and store the result in <code>this</code>.
@see Quaterniond#transform(Vector3d)
@param quat the quaternion to rotate this vector @return this