Vector.Update C# (CSharp) Method

    void Update()
    {
        if (!_result.completed)
            return;

        if (_firstTimeUpdate) {
            _firstTimeUpdate = false;
            UpdateAspectRatio(_result.imageWidth, _result.imageHeight);
            _velocities = new CvPoint2D32f[_mesh.vertexCount / 2];
        }

        ShowImage(_result);
        FlowUtil.CalculateFlowVelocities(_result, ref _velocities);
        FlowUtil.UpdateLineMesh(_result, _mesh, _velocities, limitVelocity);

        _result = _of.CalculateOpticalFlow(_corners0);
    }

        /// <summary>
        /// Create a state vector x_v from its component parts. Puts the matrices r, q, v, omega into their right places.
        /// </summary>
        /// <param name="r"></param>
        /// <param name="q"></param>
        /// <param name="v"></param>
        /// <param name="omega"></param>
        /// <param name="xv"></param>
        public void compose_xv(ref Vector3D r, ref Quaternion q, ref Vector3D v, ref Vector3D omega, ref Vector xv)
        {
            xv.Update(r.GetVNL3(), 0);

            xv.Update(q.GetRXYZ(), 3);

            xv.Update(v.GetVNL3(), 7);

            xv.Update(omega.GetVNL3(), 10);
        }