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source: branches/CloningRefactoring/HeuristicLab.Encodings.PermutationEncoding/3.3/Moves/ThreeOpt/TranslocationMoveTabuMaker.cs @ 4656

Last change on this file since 4656 was 4068, checked in by swagner, 14 years ago

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

File size: 3.6 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.Optimization.Operators;
24using HeuristicLab.Parameters;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Encodings.PermutationEncoding {
28  [Item("TranslocationMoveTabuMaker", "Declares a given translocation or insertion move (3-opt) as tabu, by adding its attributes to the tabu list.")]
29  [StorableClass]
30  public class TranslocationMoveTabuMaker : TabuMaker, IPermutationTranslocationMoveOperator {
31    public ILookupParameter<Permutation> PermutationParameter {
32      get { return (ILookupParameter<Permutation>)Parameters["Permutation"]; }
33    }
34    public ILookupParameter<TranslocationMove> TranslocationMoveParameter {
35      get { return (LookupParameter<TranslocationMove>)Parameters["TranslocationMove"]; }
36    }
37
38    public TranslocationMoveTabuMaker()
39      : base() {
40      Parameters.Add(new LookupParameter<TranslocationMove>("TranslocationMove", "The move that was made."));
41      Parameters.Add(new LookupParameter<Permutation>("Permutation", "The solution as permutation."));
42    }
43
44    protected override IItem GetTabuAttribute(bool maximization, double quality, double moveQuality) {
45      TranslocationMove move = TranslocationMoveParameter.ActualValue;
46      Permutation permutation = PermutationParameter.ActualValue;
47      double baseQuality = moveQuality;
48      if (maximization && quality > moveQuality || !maximization && quality < moveQuality) baseQuality = quality; // we make an uphill move, the lower bound is the solution quality
49      if (permutation.PermutationType == PermutationTypes.Absolute) {
50        int[] numbers = new int[move.Index2 - move.Index1 + 1];
51        for (int i = 0; i < numbers.Length; i++) {
52          numbers[i] = permutation[i + move.Index1];
53        }
54        return new TranslocationMoveAbsoluteAttribute(numbers, move.Index1, move.Index3, baseQuality); ;
55      } else {
56        if (move.Index3 > move.Index1)
57          return new TranslocationMoveRelativeAttribute(permutation.GetCircular(move.Index1 - 1),
58          permutation[move.Index1],
59          permutation[move.Index2],
60          permutation.GetCircular(move.Index2 + 1),
61          permutation.GetCircular(move.Index3 + move.Index2 - move.Index1),
62          permutation.GetCircular(move.Index3 + move.Index2 - move.Index1 + 1),
63          baseQuality);
64        else
65          return new TranslocationMoveRelativeAttribute(permutation.GetCircular(move.Index1 - 1),
66          permutation[move.Index1],
67          permutation[move.Index2],
68          permutation.GetCircular(move.Index2 + 1),
69          permutation.GetCircular(move.Index3 - 1),
70          permutation.GetCircular(move.Index3),
71          baseQuality);
72      }
73    }
74  }
75}
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