1 | using HEAL.Attic;
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2 | using HeuristicLab.Common;
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3 | using HeuristicLab.Core;
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4 | using HeuristicLab.Data;
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5 | using HeuristicLab.Encodings.PermutationEncoding;
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6 | using HeuristicLab.Operators;
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7 | using HeuristicLab.Parameters;
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8 |
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9 | namespace HeuristicLab.Problems.TravelingSalesman {
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10 | [StorableType("17477ad2-2c84-4b02-b5ac-f35ef6cc667f")]
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11 | public interface ITSPMoveEvaluator : IOperator {
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12 | ILookupParameter<Permutation> TSPTourParameter { get; }
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13 | ILookupParameter<ITSPData> TSPDataParameter { get; }
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14 | ILookupParameter<DoubleValue> TourLengthParameter { get; }
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15 | ILookupParameter<DoubleValue> TourLengthWithMoveParameter { get; }
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16 | }
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17 |
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18 | [Item("TSP Move Evaluator", "Base class for all move evaluators of the TSP.")]
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19 | [StorableType("44af3845-ccdf-4014-805a-5878c64f67f5")]
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20 | public abstract class TSPMoveEvaluator : SingleSuccessorOperator, ITSPMoveEvaluator {
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21 | [Storable] public ILookupParameter<Permutation> TSPTourParameter { get; private set; }
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22 | [Storable] public ILookupParameter<ITSPData> TSPDataParameter { get; private set; }
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23 | [Storable] public ILookupParameter<DoubleValue> TourLengthParameter { get; private set; }
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24 | [Storable] public ILookupParameter<DoubleValue> TourLengthWithMoveParameter { get; private set; }
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25 |
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26 | [StorableConstructor]
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27 | protected TSPMoveEvaluator(StorableConstructorFlag _) : base(_) { }
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28 | protected TSPMoveEvaluator(TSPMoveEvaluator original, Cloner cloner)
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29 | : base(original, cloner) {
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30 | TSPTourParameter = cloner.Clone(original.TSPTourParameter);
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31 | TSPDataParameter = cloner.Clone(original.TSPDataParameter);
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32 | TourLengthParameter = cloner.Clone(original.TourLengthParameter);
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33 | TourLengthWithMoveParameter = cloner.Clone(original.TourLengthWithMoveParameter);
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34 | }
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35 | public TSPMoveEvaluator() {
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36 | Parameters.Add(TSPTourParameter = new LookupParameter<Permutation>("TSPTour", "The tour that describes a solution to the TSP."));
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37 | Parameters.Add(TSPDataParameter = new LookupParameter<ITSPData>("TSPData", "The main parameters of the TSP."));
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38 | Parameters.Add(TourLengthParameter = new LookupParameter<DoubleValue>("TourLength", "The length of a TSP tour."));
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39 | Parameters.Add(TourLengthWithMoveParameter = new LookupParameter<DoubleValue>("TourLengthWithMove", "The length of the TSP tour if the move was applied."));
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40 | }
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41 |
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42 | public sealed override IOperation Apply() {
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43 | var tour = TSPTourParameter.ActualValue;
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44 | var tspData = TSPDataParameter.ActualValue;
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45 | var tourLength = TourLengthParameter.ActualValue.Value;
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46 | TourLengthWithMoveParameter.ActualValue = new DoubleValue(
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47 | CalculateTourLengthWithMove(tspData, tour, tourLength)
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48 | );
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49 | return base.Apply();
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50 | }
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51 |
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52 | protected abstract double CalculateTourLengthWithMove(ITSPData tspData, Permutation tspTour, double tourLength);
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53 | }
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54 | }
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