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source: branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Alba/Manipulators/AlbaManipulator.cs @ 4376

Last change on this file since 4376 was 4376, checked in by svonolfe, 14 years ago

Added Potvin encoding (#1177)

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;
26using HeuristicLab.Data;
27using HeuristicLab.Optimization;
28using HeuristicLab.Problems.VehicleRouting.Interfaces;
29using HeuristicLab.Problems.VehicleRouting.Encodings.General;
30
31namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
32  [Item("AlbaManipulator", "An operator which manipulates a VRP representation.")]
33  [StorableClass]
34  public abstract class AlbaManipulator : VRPManipulator, IAlbaOperator, IVRPManipulator, IStochasticOperator {
35    public ILookupParameter<IRandom> RandomParameter {
36      get { return (LookupParameter<IRandom>)Parameters["Random"]; }
37    }
38
39    [StorableConstructor]
40    protected AlbaManipulator(bool deserializing) : base(deserializing) { }
41
42    public AlbaManipulator()
43      : base() {
44        Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator which should be used for stochastic manipulation operators."));
45    }
46
47    protected abstract void Manipulate(IRandom random, AlbaEncoding individual);
48
49    protected int FindCustomerLocation(int customer, AlbaEncoding individual) {
50      int pos = -1;
51      for (int i = 0; i < individual.Length; i++) {
52        if (individual[i] == customer) {
53          pos = i;
54          break;
55        }
56      }
57
58      return pos;
59    }
60
61    public override IOperation Apply() {
62      IVRPEncoding solution = VRPToursParameter.ActualValue;
63      if (!(solution is AlbaEncoding)) {
64        VRPToursParameter.ActualValue = AlbaEncoding.ConvertFrom(solution, ProblemInstance);
65      }
66
67      Manipulate(RandomParameter.ActualValue, VRPToursParameter.ActualValue as AlbaEncoding);
68
69      return base.Apply();
70    }
71  }
72}
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