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source: trunk/sources/HeuristicLab.Problems.VehicleRouting/3.3/Encodings/Alba/Crossovers/AlbaPermutationCrossover.cs @ 4068

Last change on this file since 4068 was 4068, checked in by swagner, 14 years ago

Sorted usings and removed unused usings in entire solution (#1094)

File size: 2.7 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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.Core;
23using HeuristicLab.Encodings.PermutationEncoding;
24using HeuristicLab.Parameters;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
28  [Item("AlbaPermutationCrossover", "An operator which crosses two alba VRP representations.")]
29  [StorableClass]
30  public sealed class AlbaPermutationCrossover : VRPCrossover {
31    public IValueLookupParameter<IPermutationCrossover> PermutationCrossoverParameter {
32      get { return (IValueLookupParameter<IPermutationCrossover>)Parameters["PermutationCrossover"]; }
33    }
34
35    public AlbaPermutationCrossover()
36      : base() {
37      Parameters.Add(new ValueLookupParameter<IPermutationCrossover>("PermutationCrossover", "The permutation crossover.", new EdgeRecombinationCrossover()));
38    }
39
40    public override IOperation Apply() {
41      int cities = 0;
42
43      for (int i = 0; i < ParentsParameter.ActualValue.Length; i++) {
44        IVRPEncoding solution = ParentsParameter.ActualValue[i];
45        cities = solution.Cities;
46        if (!(solution is AlbaEncoding)) {
47          ParentsParameter.ActualValue[i] = AlbaEncoding.ConvertFrom(solution);
48        }
49      }
50
51      PermutationCrossoverParameter.ActualValue.ParentsParameter.ActualName = ParentsParameter.ActualName;
52      IAtomicOperation op = this.ExecutionContext.CreateOperation(PermutationCrossoverParameter.ActualValue);
53      op.Operator.Execute((IExecutionContext)op);
54
55      if (ExecutionContext.Scope.Variables.ContainsKey("Permutation")) {
56        Permutation permutation = ExecutionContext.Scope.Variables["Permutation"].Value as Permutation;
57        ExecutionContext.Scope.Variables.Remove("Permutation");
58
59        ChildParameter.ActualValue = new AlbaEncoding(permutation, cities);
60      } else
61        ChildParameter.ActualValue = null;
62
63      return base.Apply();
64    }
65  }
66}
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