source: branches/SpectralKernelForGaussianProcesses/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Zhu/Crossovers/ZhuCrossover.cs @ 10479

Last change on this file since 10479 was 10479, checked in by gkronber, 6 years ago

#2124 merged all changes from trunk to prepare for trunk-reintegration

File size: 2.8 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2013 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.Zhu {
31  [Item("ZhuCrossover", "An operator which crosses two VRP representations.")]
32  [StorableClass]
33  public abstract class ZhuCrossover : VRPCrossover, IStochasticOperator, IZhuOperator {
34    public ILookupParameter<IRandom> RandomParameter {
35      get { return (LookupParameter<IRandom>)Parameters["Random"]; }
36    }
37
38    [StorableConstructor]
39    protected ZhuCrossover(bool deserializing) : base(deserializing) { }
40
41    public ZhuCrossover()
42      : base() {
43      Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator which should be used for stochastic manipulation operators."));
44    }
45
46    protected ZhuCrossover(ZhuCrossover original, Cloner cloner)
47      : base(original, cloner) {
48    }
49
50    protected abstract ZhuEncoding Crossover(IRandom random, ZhuEncoding parent1, ZhuEncoding parent2);
51
52    public override IOperation InstrumentedApply() {
53      ItemArray<IVRPEncoding> parents = new ItemArray<IVRPEncoding>(ParentsParameter.ActualValue.Length);
54      for (int i = 0; i < ParentsParameter.ActualValue.Length; i++) {
55        IVRPEncoding solution = ParentsParameter.ActualValue[i];
56
57        if (!(solution is ZhuEncoding)) {
58          parents[i] = ZhuEncoding.ConvertFrom(solution, ProblemInstance);
59        } else {
60          parents[i] = solution;
61        }
62      }
63      ParentsParameter.ActualValue = parents;
64
65      ChildParameter.ActualValue =
66        Crossover(RandomParameter.ActualValue, parents[0] as ZhuEncoding, parents[1] as ZhuEncoding);
67
68      return base.InstrumentedApply();
69    }
70  }
71}
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