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source: trunk/sources/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/GVR/Manipulators/GVRSwapManipulator.cs @ 14615

Last change on this file since 14615 was 14185, checked in by swagner, 8 years ago

#2526: Updated year of copyrights in license headers

File size: 2.3 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 HeuristicLab.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
25
26namespace HeuristicLab.Problems.VehicleRouting.Encodings.GVR {
27  [Item("GVRSwapManipulator", "An operator which manipulates a GVR representation by swapping two customers. It is implemented as described in Pereira, F.B. et al (2002). GVR: a New Genetic Representation for the Vehicle Routing Problem. AICS 2002, LNAI 2464, pp. 95-102.")]
28  [StorableClass]
29  public sealed class GVRSwapManipulator : GVRManipulator {
30    [StorableConstructor]
31    private GVRSwapManipulator(bool deserializing) : base(deserializing) { }
32
33    public GVRSwapManipulator()
34      : base() {
35    }
36
37    public override IDeepCloneable Clone(Cloner cloner) {
38      return new GVRSwapManipulator(this, cloner);
39    }
40
41    private GVRSwapManipulator(GVRSwapManipulator original, Cloner cloner)
42      : base(original, cloner) {
43    }
44
45    protected override void Manipulate(IRandom random, GVREncoding individual) {
46      int customer1 = random.Next(1, individual.Cities + 1);
47      int customer2 = random.Next(1, individual.Cities + 1);
48
49      Tour tour1;
50      int pos1;
51      individual.FindCustomer(customer1, out tour1, out pos1);
52
53      Tour tour2;
54      int pos2;
55      individual.FindCustomer(customer2, out tour2, out pos2);
56
57      int temp = tour1.Stops[pos1];
58      tour1.Stops[pos1] = tour2.Stops[pos2];
59      tour2.Stops[pos2] = temp;
60    }
61  }
62}
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