java – 如何计算点的arraylist的质心

我试图分别从ArrayList的点添加所有x和y坐标.

public static ArrayList knots = new ArrayList<Point>();



public Point centroid()  {
        Point center = new Point();
            for(int i=0; i<knots.size(); i++) {
            ????????????????????
        return center;
}

我怎样才能找到质心？

解决方法:

public Point centroid()  {
    double centroidX = 0, centroidY = 0;

        for(Point knot : knots) {
            centroidX += knot.getX();
            centroidY += knot.getY();
        }
    return new Point(centroidX / knots.size(), centroidY / knots.size());
}

标签：points,java,arraylist,centroid
来源： https://codeday.me/bug/20191008/1871214.html