MissionPlanner.Grid.getPolyMinMax C# (CSharp) Method

        static Rect getPolyMinMax(List<utmpos> utmpos)
        {
            if (utmpos.Count == 0)
                return new Rect();

            double minx, miny, maxx, maxy;

            minx = maxx = utmpos[0].x;
            miny = maxy = utmpos[0].y;

            foreach (utmpos pnt in utmpos)
            {
                minx = Math.Min(minx, pnt.x);
                maxx = Math.Max(maxx, pnt.x);

                miny = Math.Min(miny, pnt.y);
                maxy = Math.Max(maxy, pnt.y);
            }

            return new Rect(minx, maxy, maxx - minx,miny - maxy);
        }