| 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.Optimization;
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| 8 | using HeuristicLab.Parameters;
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| 9 |
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| 10 | namespace HeuristicLab.Problems.TravelingSalesman {
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| 11 | [StorableType("17477ad2-2c84-4b02-b5ac-f35ef6cc667f")]
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| 12 | public interface ITSPMoveEvaluator : IOperator, ISingleObjectiveMoveEvaluator, IMoveOperator {
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| 13 | ILookupParameter<Permutation> TSPTourParameter { get; }
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| 14 | ILookupParameter<ITSPData> TSPDataParameter { get; }
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| 15 | ILookupParameter<DoubleValue> TourLengthParameter { get; }
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| 16 | ILookupParameter<DoubleValue> TourLengthWithMoveParameter { get; }
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| 17 | }
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| 18 |
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| 19 | [Item("TSP Move Evaluator", "Base class for all move evaluators of the TSP.")]
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| 20 | [StorableType("44af3845-ccdf-4014-805a-5878c64f67f5")]
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| 21 | public abstract class TSPMoveEvaluator : SingleSuccessorOperator, ITSPMoveEvaluator {
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| 22 | [Storable] public ILookupParameter<Permutation> TSPTourParameter { get; private set; }
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| 23 | [Storable] public ILookupParameter<ITSPData> TSPDataParameter { get; private set; }
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| 24 | [Storable] public ILookupParameter<DoubleValue> TourLengthParameter { get; private set; }
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| 25 | [Storable] public ILookupParameter<DoubleValue> TourLengthWithMoveParameter { get; private set; }
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| 26 |
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| 27 | ILookupParameter<DoubleValue> ISingleObjectiveMoveEvaluator.QualityParameter => TourLengthParameter;
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| 28 | ILookupParameter<DoubleValue> ISingleObjectiveMoveEvaluator.MoveQualityParameter => TourLengthWithMoveParameter;
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| 29 |
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| 30 | [StorableConstructor]
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| 31 | protected TSPMoveEvaluator(StorableConstructorFlag _) : base(_) { }
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| 32 | protected TSPMoveEvaluator(TSPMoveEvaluator original, Cloner cloner)
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| 33 | : base(original, cloner) {
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| 34 | TSPTourParameter = cloner.Clone(original.TSPTourParameter);
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| 35 | TSPDataParameter = cloner.Clone(original.TSPDataParameter);
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| 36 | TourLengthParameter = cloner.Clone(original.TourLengthParameter);
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| 37 | TourLengthWithMoveParameter = cloner.Clone(original.TourLengthWithMoveParameter);
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| 38 | }
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| 39 | public TSPMoveEvaluator() {
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| 40 | Parameters.Add(TSPTourParameter = new LookupParameter<Permutation>("TSPTour", "The tour that describes a solution to the TSP."));
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| 41 | Parameters.Add(TSPDataParameter = new LookupParameter<ITSPData>("TSPData", "The main parameters of the TSP."));
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| 42 | Parameters.Add(TourLengthParameter = new LookupParameter<DoubleValue>("TourLength", "The length of a TSP tour."));
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| 43 | Parameters.Add(TourLengthWithMoveParameter = new LookupParameter<DoubleValue>("TourLengthWithMove", "The length of the TSP tour if the move was applied."));
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| 44 | }
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| 45 |
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| 46 | public sealed override IOperation Apply() {
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| 47 | var tour = TSPTourParameter.ActualValue;
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| 48 | var tspData = TSPDataParameter.ActualValue;
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| 49 | var tourLength = TourLengthParameter.ActualValue.Value;
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| 50 | TourLengthWithMoveParameter.ActualValue = new DoubleValue(
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| 51 | CalculateTourLengthWithMove(tspData, tour, tourLength)
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| 52 | );
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| 53 | return base.Apply();
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| 54 | }
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| 55 |
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| 56 | protected abstract double CalculateTourLengthWithMove(ITSPData tspData, Permutation tspTour, double tourLength);
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| 57 | }
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| 58 | }
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