nb = cumulatePoints(coord, pos, nb);
cumulatePoints(coord, pos, 0);
    public void computeMoments ()    {        // First cumulate point from member sections        int weight = getWeight();        int[] coord = new int[weight];        int[] pos = new int[weight];        int nb = 0;        // Append recursively all points        nb = cumulatePoints(coord, pos, nb);        // Then compute the moments, swapping pos & coord since the lag is        // vertical        moments = new Moments(pos, coord, weight, interline);    }