Free cookie consent management tool by TermsFeed Policy Generator

source: stable/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Alba/Crossovers/AlbaCrossover.cs @ 16440

Last change on this file since 16440 was 15584, checked in by swagner, 7 years ago

#2640: Updated year of copyrights in license headers on stable

File size: 2.9 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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 HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Optimization;
25using HeuristicLab.Parameters;
26using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
27using HeuristicLab.Problems.VehicleRouting.Encodings.General;
28using HeuristicLab.Problems.VehicleRouting.Interfaces;
29
30namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
31  [Item("AlbaCrossover", "An operator which crosses two VRP representations.")]
32  [StorableClass]
33  public abstract class AlbaCrossover : VRPCrossover, IAlbaOperator, IVRPCrossover, IStochasticOperator {
34    public ILookupParameter<IRandom> RandomParameter {
35      get { return (LookupParameter<IRandom>)Parameters["Random"]; }
36    }
37
38    [StorableConstructor]
39    protected AlbaCrossover(bool deserializing)
40      : base(deserializing) {
41    }
42
43    public AlbaCrossover()
44      : base() {
45      Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator which should be used for stochastic manipulation operators."));
46    }
47
48    protected AlbaCrossover(AlbaCrossover original, Cloner cloner)
49      : base(original, cloner) {
50    }
51
52    protected abstract AlbaEncoding Crossover(IRandom random, AlbaEncoding parent1, AlbaEncoding parent2);
53
54    public override IOperation InstrumentedApply() {
55      ItemArray<IVRPEncoding> parents = new ItemArray<IVRPEncoding>(ParentsParameter.ActualValue.Length);
56      for (int i = 0; i < ParentsParameter.ActualValue.Length; i++) {
57        IVRPEncoding solution = ParentsParameter.ActualValue[i];
58
59        if (!(solution is AlbaEncoding)) {
60          parents[i] = AlbaEncoding.ConvertFrom(solution, ProblemInstance);
61        } else {
62          parents[i] = solution;
63        }
64      }
65      ParentsParameter.ActualValue = parents;
66
67      ChildParameter.ActualValue =
68        Crossover(RandomParameter.ActualValue, parents[0] as AlbaEncoding, parents[1] as AlbaEncoding);
69      (ChildParameter.ActualValue as AlbaEncoding).Repair();
70
71      return base.InstrumentedApply();
72    }
73  }
74}
Note: See TracBrowser for help on using the repository browser.