在C＃中编写LINQ以过滤通用PointF列表中的max x / y

Question

If I have a list contains PointF like:

[10.5, 5.5]
[8.5, 4.5]
[10.5, 6.5]
[5.5, 10.5]
[10.5, 3.5]

Is it possible to have a LINQ to find the max value of x first and then find the max value of Y from among those max X value to yield the result like:

[10.5, 6.5] 

Answer 1

points.OrderBy(i => i.x).ThenBy(i => i.y).Last();

or if you preffer LINQ query syntax:

(from point in points
orderby point.x, point.y 
select point).Last();

Answer 2

Following groups by the x-values, takes the highest group and select the highest y value in that group.

PointF maxPoint = points
        .GroupBy(p => p.X)
        .OrderByDescending(g => g.Key)
        .Take(1)
        .Select(g => new PointF(g.Key, g.Max(p => p.Y)))
        .First();