ArcStrabo10.ArcStraboObject.consolidate C# (CSharp) Метод

        public static HashSet<float[]> consolidate(ArrayList al, int w, int h, TextWriter log)
        {
            ArrayList al2 = new ArrayList();

            foreach (float[] i in al)
            {
                al2.Add(i);
            }

            foreach (float[] i in al)
            {
                foreach (float[] j in al)
                {
                    if (!((Math.Abs(i[0] - j[0]) > w) ||
                        (Math.Abs(i[1] - j[1]) > h) ||
                        (Math.Sqrt(Math.Pow(i[0] - j[0], 2) + Math.Pow(i[1] - j[1], 2)) > Math.Sqrt(Math.Pow(w, 2) + Math.Pow(h, 2)))))
                    {

                        if (i[2] > j[2])
                        {
                            al2[al.IndexOf(j)] = i;
                        }
                        else if (i[2] < j[2])
                        {
                            al2[al.IndexOf(i)] = j;
                        }
                    }
                }
            }

            HashSet<float[]> hash = new HashSet<float[]>();

            foreach (float[] i in al2)
            {
                hash.Add(i);
            }

            //log.WriteLine("The count of al2: " + al2.Count);
            //log.WriteLine("The count of hash: " + hash.Count);

            al.Clear();

            foreach (float[] i in hash)
            {
                al.Add(i);
            }

            //log.WriteLine("The count after hash: " + al.Count);

            return hash;
        }