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source: branches/PersistenceReintegration/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Alba/Manipulators/AlbaCustomerSwapManipulator.cs @ 15018

Last change on this file since 15018 was 15018, checked in by gkronber, 7 years ago

#2520 introduced StorableConstructorFlag type for StorableConstructors

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;
25
26namespace HeuristicLab.Problems.VehicleRouting.Encodings.Alba {
27  [Item("AlbaCustomerSwapManipulator", "An operator which manipulates a VRP representation by swapping two customers.  It is implemented as described in Alba, E. and Dorronsoro, B. (2004). Solving the Vehicle Routing Problem by Using Cellular Genetic Algorithms.")]
28  [StorableType("ab1af6d9-29a9-4c75-8bda-3cbb55e3c768")]
29  public sealed class AlbaCustomerSwapManipulator : AlbaManipulator {
30    [StorableConstructor]
31    private AlbaCustomerSwapManipulator(StorableConstructorFlag deserializing) : base(deserializing) { }
32
33    public AlbaCustomerSwapManipulator()
34      : base() {
35    }
36
37    public override IDeepCloneable Clone(Cloner cloner) {
38      return new AlbaCustomerSwapManipulator(this, cloner);
39    }
40
41    private AlbaCustomerSwapManipulator(AlbaCustomerSwapManipulator original, Cloner cloner)
42      : base(original, cloner) {
43    }
44
45    protected override void Manipulate(IRandom random, AlbaEncoding individual) {
46      int index1, index2, temp;
47
48      int customer1 = random.Next(ProblemInstance.Cities.Value);
49      index1 = FindCustomerLocation(customer1, individual);
50
51      int customer2 = random.Next(ProblemInstance.Cities.Value);
52      index2 = FindCustomerLocation(customer2, individual);
53
54      temp = individual[index1];
55      individual[index1] = individual[index2];
56      individual[index2] = temp;
57    }
58  }
59}
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