1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using HeuristicLab.Common;
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23 | using HeuristicLab.Core;
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24 | using HeuristicLab.Data;
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25 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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26 | using HeuristicLab.Operators;
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27 | using HeuristicLab.Optimization;
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28 | using HeuristicLab.Parameters;
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29 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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30 |
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31 | namespace HeuristicLab.Problems.LawnMower {
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32 | [StorableClass("33C3BFD9-5CEC-487C-9CF1-8E9235C9CB63")]
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33 | [Item("Best Lawn Mower Solution Analyzer", "Analyzer that stores the best lawn mower solution.")]
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34 | public class BestSolutionAnalyzer : SingleSuccessorOperator, ISymbolicExpressionTreeAnalyzer {
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35 |
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36 | private const string QualityParameterName = "Quality";
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37 | private const string SymbolicExpressionTreeParameterName = "LawnMowerProgram";
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38 | private const string LawnWidthParameterName = "LawnWidth";
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39 | private const string LawnLengthParameterName = "LawnLength";
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40 | private const string BestSolutionParameterName = "Best solution";
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41 | private const string ResultsParameterName = "Results";
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42 |
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43 | public IScopeTreeLookupParameter<DoubleValue> QualityParameter {
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44 | get { return (IScopeTreeLookupParameter<DoubleValue>)Parameters[QualityParameterName]; }
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45 | }
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46 | public IScopeTreeLookupParameter<ISymbolicExpressionTree> SymbolicExpressionTreeParameter {
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47 | get { return (IScopeTreeLookupParameter<ISymbolicExpressionTree>)Parameters[SymbolicExpressionTreeParameterName]; }
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48 | }
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49 | public ILookupParameter<IntValue> LawnWidthParameter {
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50 | get { return (ILookupParameter<IntValue>)Parameters[LawnWidthParameterName]; }
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51 | }
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52 | public ILookupParameter<IntValue> LawnLengthParameter {
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53 | get { return (ILookupParameter<IntValue>)Parameters[LawnLengthParameterName]; }
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54 | }
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55 | public ILookupParameter<Solution> BestSolutionParameter {
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56 | get { return (ILookupParameter<Solution>)Parameters[BestSolutionParameterName]; }
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57 | }
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58 | public ILookupParameter<ResultCollection> ResultParameter {
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59 | get { return (ILookupParameter<ResultCollection>)Parameters[ResultsParameterName]; }
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60 | }
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61 |
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62 | [StorableConstructor]
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63 | protected BestSolutionAnalyzer(bool deserializing) : base(deserializing) { }
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64 | protected BestSolutionAnalyzer(BestSolutionAnalyzer original, Cloner cloner)
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65 | : base(original, cloner) {
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66 | }
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67 |
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68 | public BestSolutionAnalyzer() {
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69 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>(QualityParameterName, "The solution quality of the lawn mower program."));
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70 | Parameters.Add(new ScopeTreeLookupParameter<ISymbolicExpressionTree>(SymbolicExpressionTreeParameterName, "The lawn mower program to evaluate represented as symbolic expression tree."));
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71 | Parameters.Add(new LookupParameter<Solution>(BestSolutionParameterName, "The best lawn mower solution."));
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72 | Parameters.Add(new LookupParameter<IntValue>(LawnWidthParameterName, "The width of the lawn to mow."));
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73 | Parameters.Add(new LookupParameter<IntValue>(LawnLengthParameterName, "The length of the lawn to mow."));
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74 | Parameters.Add(new LookupParameter<ResultCollection>(ResultsParameterName, "The result collection of the algorithm."));
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75 | }
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76 |
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77 | [StorableHook(HookType.AfterDeserialization)]
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78 | private void AfterDeserialization() {
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79 | }
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80 |
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81 | public override IDeepCloneable Clone(Cloner cloner) {
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82 | return new BestSolutionAnalyzer(this, cloner);
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83 | }
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84 |
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85 | public override IOperation Apply() {
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86 | var trees = SymbolicExpressionTreeParameter.ActualValue;
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87 | var qualities = QualityParameter.ActualValue;
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88 |
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89 | // find max tree
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90 | double maxQuality = double.NegativeInfinity;
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91 | ISymbolicExpressionTree bestTree = null;
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92 | for (int i = 0; i < qualities.Length; i++) {
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93 | if (qualities[i].Value > maxQuality) {
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94 | maxQuality = qualities[i].Value;
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95 | bestTree = trees[i];
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96 | }
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97 | }
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98 | int length = LawnLengthParameter.ActualValue.Value;
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99 | int width = LawnWidthParameter.ActualValue.Value;
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100 | var bestSolution = new Solution(bestTree, length, width);
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101 | BestSolutionParameter.ActualValue = bestSolution;
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102 |
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103 | var resultCollection = ResultParameter.ActualValue;
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104 | if (!resultCollection.ContainsKey(BestSolutionParameterName)) {
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105 | resultCollection.Add(new Result(BestSolutionParameterName, "The best lawn mower solution", bestSolution));
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106 | } else {
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107 | resultCollection[BestSolutionParameterName].Value = bestSolution;
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108 | }
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109 |
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110 | return base.Apply();
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111 | }
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112 | public bool EnabledByDefault {
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113 | get { return true; }
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114 | }
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115 | }
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116 | }
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