Points.java 文件源码

public static Point getMeanPoint(List<Point> points) {
    if (points.size() == 0) return null;
    double x = 0;
    double y = 0;
    for(Point point : points) {
        x += Math.pow(point.x, 2);
        y += Math.pow(point.y, 2);
    }
    return new Point(Math.sqrt(x/points.size()), Math.sqrt(y/points.size()));
}