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source: branches/PerformanceComparison/HeuristicLab.Algorithms.DataAnalysis/3.4/Distances/DistanceBase.cs @ 14678

Last change on this file since 14678 was 14512, checked in by bwerth, 8 years ago

#2700 worked in several comments from mkommend, extended analysis during algorithm run, added more Distances, made algorithm stoppable

File size: 2.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System.Collections.Generic;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Problems.SurrogateProblem {
28  [StorableClass]
29  public abstract class DistanceBase<T> : Item, IDistance<T> {
30
31    #region HLConstructors
32    [StorableConstructor]
33    protected DistanceBase(bool deserializing) : base(deserializing) { }
34    protected DistanceBase(DistanceBase<T> original, Cloner cloner)
35      : base(original, cloner) { }
36    protected DistanceBase() { }
37    #endregion
38
39    public abstract double Get(T a, T b);
40    public abstract double Get(T a, T b, double threshold);
41
42    public IComparer<T> GetDistanceComparer(T item) {
43      return new DistanceComparer(item, this);
44    }
45
46    private class DistanceComparer : IComparer<T> {
47      private readonly T item;
48      private readonly IDistance<T> dist;
49
50      public DistanceComparer(T item, IDistance<T> dist) {
51        this.dist = dist;
52        this.item = item;
53      }
54
55      public int Compare(T x, T y) {
56        return dist.Get(x, item).CompareTo(dist.Get(y, item));
57      }
58    }
59  }
60}
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