source: branches/HeuristicLab.BinPacking/HeuristicLab.Problems.BinPacking.2D/3.3/PermutationEncoding/TranslocationMoveEvaluator.cs @ 14148

Last change on this file since 14148 was 14148, checked in by gkronber, 5 years ago

#1966: restructuring

File size: 5.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Joseph Helm and 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.Data;
25using HeuristicLab.Encodings.PermutationEncoding;
26using HeuristicLab.Operators;
27using HeuristicLab.Optimization;
28using HeuristicLab.Parameters;
29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30
31namespace HeuristicLab.Problems.BinPacking2D {
32  [Item("TranslocationMoveEvaluator", "Move evaluator for insertion or translocation moves.")]
33  [StorableClass]
34  public sealed class TranslocationMoveEvaluator : SingleSuccessorOperator,
35    ISingleObjectiveMoveEvaluator, ISingleObjectiveMoveOperator, IPermutationTranslocationMoveOperator {
36    public override bool CanChangeName {
37      get { return false; }
38    }
39    public ILookupParameter<Permutation> PermutationParameter {
40      get { return (ILookupParameter<Permutation>)Parameters["PackingSequence"]; }
41    }
42    public ILookupParameter<DoubleValue> QualityParameter {
43      get { return (ILookupParameter<DoubleValue>)Parameters["Quality"]; }
44    }
45    public ILookupParameter<DoubleValue> MoveQualityParameter {
46      get { return (ILookupParameter<DoubleValue>)Parameters["MoveQuality"]; }
47    }
48    public ILookupParameter<ReadOnlyItemList<PackingItem>> PackingItemMeasuresParameter {
49      get { return (LookupParameter<ReadOnlyItemList<PackingItem>>)Parameters["Items"]; }
50    }
51    public ILookupParameter<PackingShape> PackingBinMeasuresParameter {
52      get { return (LookupParameter<PackingShape>)Parameters["BinShape"]; }
53    }
54    public ILookupParameter<IPermutationDecoder> PackingSolutionDecoderParameter {
55      get { return (ILookupParameter<IPermutationDecoder>)Parameters["Decoder"]; }
56    }
57    public ILookupParameter<IEvaluator> PackingPlanEvaluatorParameter {
58      get { return (ILookupParameter<IEvaluator>)Parameters["SolutionEvaluator"]; }
59    }
60
61    public ILookupParameter<TranslocationMove> TranslocationMoveParameter {
62      get { return (ILookupParameter<TranslocationMove>)Parameters["TranslocationMove"]; }
63    }
64
65    [StorableConstructor]
66    private TranslocationMoveEvaluator(bool deserializing) : base(deserializing) { }
67    private TranslocationMoveEvaluator(TranslocationMoveEvaluator original, Cloner cloner) : base(original, cloner) { }
68    public TranslocationMoveEvaluator()
69      : base() {
70      Parameters.Add(new LookupParameter<Permutation>("PackingSequence", "The encoded solution candidate to evaluate"));
71      Parameters.Add(new LookupParameter<DoubleValue>("Quality", "The quality of a packing solution."));
72      Parameters.Add(new LookupParameter<DoubleValue>("MoveQuality", "The evaluated quality of a move on a packing solution."));
73      Parameters.Add(new LookupParameter<ReadOnlyItemList<PackingItem>>("Items", "Packing-item data taken from the bin-packing problem-instance."));
74      Parameters.Add(new LookupParameter<PackingShape>("BinShape", "Packing-bin data taken from the bin-packing problem-instance."));
75      Parameters.Add(new LookupParameter<IPermutationDecoder>("Decoder", "The decoding operator that is used to calculate a packing plan from the used representation."));
76      Parameters.Add(new LookupParameter<IEvaluator>("SolutionEvaluator", "The actual packing plan evaluation operator."));
77      Parameters.Add(new LookupParameter<TranslocationMove>("TranslocationMove", "The move to evaluate."));
78    }
79
80    public override IDeepCloneable Clone(Cloner cloner) {
81      return new TranslocationMoveEvaluator(this, cloner);
82    }
83
84
85    public override IOperation Apply() {
86      var move = TranslocationMoveParameter.ActualValue;
87      var permutation = PermutationParameter.ActualValue;
88      var binShape = PackingBinMeasuresParameter.ActualValue;
89      var items = PackingItemMeasuresParameter.ActualValue;
90
91      // uses full evaluation
92
93      TranslocationManipulator.Apply(permutation, move.Index1, move.Index2, move.Index3);
94      var solution = PackingSolutionDecoderParameter.ActualValue.Decode(permutation, binShape, items);
95
96      var quality = PackingPlanEvaluatorParameter.ActualValue.Evaluate(solution);
97
98      double moveQuality = quality;
99
100      if (MoveQualityParameter.ActualValue == null)
101        MoveQualityParameter.ActualValue = new DoubleValue(moveQuality);
102      else
103        MoveQualityParameter.ActualValue.Value = moveQuality;
104      return base.Apply();
105    }
106  }
107}
Note: See TracBrowser for help on using the repository browser.