1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2010 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 System;
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23 | using System.Collections.Generic;
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24 | using System.Drawing;
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25 | using System.IO;
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26 | using System.Linq;
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27 | using HeuristicLab.Common;
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28 | using HeuristicLab.Core;
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29 | using HeuristicLab.Data;
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30 | using HeuristicLab.Encodings.PermutationEncoding;
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31 | using HeuristicLab.Optimization;
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32 | using HeuristicLab.Parameters;
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33 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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34 | using HeuristicLab.PluginInfrastructure;
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35 |
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36 | namespace HeuristicLab.Problems.TravelingSalesman {
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37 | [Item("Traveling Salesman Problem", "Represents a symmetric Traveling Salesman Problem.")]
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38 | [Creatable("Problems")]
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39 | [StorableClass]
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40 | public sealed class TravelingSalesmanProblem : ParameterizedNamedItem, ISingleObjectiveProblem, IStorableContent {
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41 | public string Filename { get; set; }
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42 |
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43 | public override Image ItemImage {
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44 | get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Type; }
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45 | }
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46 |
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47 | #region Parameter Properties
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48 | public ValueParameter<BoolValue> MaximizationParameter {
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49 | get { return (ValueParameter<BoolValue>)Parameters["Maximization"]; }
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50 | }
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51 | IParameter ISingleObjectiveProblem.MaximizationParameter {
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52 | get { return MaximizationParameter; }
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53 | }
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54 | public ValueParameter<DoubleMatrix> CoordinatesParameter {
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55 | get { return (ValueParameter<DoubleMatrix>)Parameters["Coordinates"]; }
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56 | }
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57 | public OptionalValueParameter<DistanceMatrix> DistanceMatrixParameter {
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58 | get { return (OptionalValueParameter<DistanceMatrix>)Parameters["DistanceMatrix"]; }
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59 | }
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60 | public ValueParameter<BoolValue> UseDistanceMatrixParameter {
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61 | get { return (ValueParameter<BoolValue>)Parameters["UseDistanceMatrix"]; }
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62 | }
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63 | public ValueParameter<IPermutationCreator> SolutionCreatorParameter {
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64 | get { return (ValueParameter<IPermutationCreator>)Parameters["SolutionCreator"]; }
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65 | }
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66 | IParameter IProblem.SolutionCreatorParameter {
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67 | get { return SolutionCreatorParameter; }
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68 | }
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69 | public ValueParameter<ITSPEvaluator> EvaluatorParameter {
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70 | get { return (ValueParameter<ITSPEvaluator>)Parameters["Evaluator"]; }
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71 | }
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72 | IParameter IProblem.EvaluatorParameter {
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73 | get { return EvaluatorParameter; }
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74 | }
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75 | public OptionalValueParameter<DoubleValue> BestKnownQualityParameter {
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76 | get { return (OptionalValueParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
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77 | }
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78 | IParameter ISingleObjectiveProblem.BestKnownQualityParameter {
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79 | get { return BestKnownQualityParameter; }
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80 | }
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81 | public OptionalValueParameter<Permutation> BestKnownSolutionParameter {
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82 | get { return (OptionalValueParameter<Permutation>)Parameters["BestKnownSolution"]; }
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83 | }
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84 | #endregion
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85 |
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86 | #region Properties
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87 | public DoubleMatrix Coordinates {
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88 | get { return CoordinatesParameter.Value; }
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89 | set { CoordinatesParameter.Value = value; }
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90 | }
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91 | public DistanceMatrix DistanceMatrix {
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92 | get { return DistanceMatrixParameter.Value; }
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93 | set { DistanceMatrixParameter.Value = value; }
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94 | }
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95 | public BoolValue UseDistanceMatrix {
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96 | get { return UseDistanceMatrixParameter.Value; }
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97 | set { UseDistanceMatrixParameter.Value = value; }
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98 | }
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99 | public IPermutationCreator SolutionCreator {
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100 | get { return SolutionCreatorParameter.Value; }
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101 | set { SolutionCreatorParameter.Value = value; }
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102 | }
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103 | ISolutionCreator IProblem.SolutionCreator {
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104 | get { return SolutionCreatorParameter.Value; }
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105 | }
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106 | public ITSPEvaluator Evaluator {
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107 | get { return EvaluatorParameter.Value; }
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108 | set { EvaluatorParameter.Value = value; }
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109 | }
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110 | ISingleObjectiveEvaluator ISingleObjectiveProblem.Evaluator {
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111 | get { return EvaluatorParameter.Value; }
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112 | }
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113 | IEvaluator IProblem.Evaluator {
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114 | get { return EvaluatorParameter.Value; }
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115 | }
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116 | public DoubleValue BestKnownQuality {
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117 | get { return BestKnownQualityParameter.Value; }
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118 | set { BestKnownQualityParameter.Value = value; }
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119 | }
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120 | public Permutation BestKnownSolution {
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121 | get { return BestKnownSolutionParameter.Value; }
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122 | set { BestKnownSolutionParameter.Value = value; }
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123 | }
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124 | public IEnumerable<IOperator> Operators {
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125 | get { return operators; }
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126 | }
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127 | private BestTSPSolutionAnalyzer BestTSPSolutionAnalyzer {
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128 | get { return operators.OfType<BestTSPSolutionAnalyzer>().FirstOrDefault(); }
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129 | }
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130 | private TSPAlleleFrequencyAnalyzer TSPAlleleFrequencyAnalyzer {
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131 | get { return operators.OfType<TSPAlleleFrequencyAnalyzer>().FirstOrDefault(); }
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132 | }
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133 | private TSPPopulationDiversityAnalyzer TSPPopulationDiversityAnalyzer {
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134 | get { return operators.OfType<TSPPopulationDiversityAnalyzer>().FirstOrDefault(); }
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135 | }
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136 | #endregion
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137 |
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138 | [Storable]
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139 | private List<IOperator> operators;
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140 |
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141 | [StorableConstructor]
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142 | private TravelingSalesmanProblem(bool deserializing) : base(deserializing) { }
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143 | private TravelingSalesmanProblem(TravelingSalesmanProblem original, Cloner cloner)
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144 | : base(original, cloner) {
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145 | this.operators = original.operators.Select(x => (IOperator)cloner.Clone(x)).ToList();
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146 | AttachEventHandlers();
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147 | }
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148 | public override IDeepCloneable Clone(Cloner cloner) {
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149 | return new TravelingSalesmanProblem(this, cloner);
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150 | }
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151 | public TravelingSalesmanProblem()
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152 | : base() {
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153 | RandomPermutationCreator creator = new RandomPermutationCreator();
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154 | TSPRoundedEuclideanPathEvaluator evaluator = new TSPRoundedEuclideanPathEvaluator();
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155 |
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156 | Parameters.Add(new ValueParameter<BoolValue>("Maximization", "Set to false as the Traveling Salesman Problem is a minimization problem.", new BoolValue(false)));
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157 | Parameters.Add(new ValueParameter<DoubleMatrix>("Coordinates", "The x- and y-Coordinates of the cities."));
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158 | Parameters.Add(new OptionalValueParameter<DistanceMatrix>("DistanceMatrix", "The matrix which contains the distances between the cities."));
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159 | Parameters.Add(new ValueParameter<BoolValue>("UseDistanceMatrix", "True if a distance matrix should be calculated and used for evaluation, otherwise false.", new BoolValue(true)));
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160 | Parameters.Add(new ValueParameter<IPermutationCreator>("SolutionCreator", "The operator which should be used to create new TSP solutions.", creator));
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161 | Parameters.Add(new ValueParameter<ITSPEvaluator>("Evaluator", "The operator which should be used to evaluate TSP solutions.", evaluator));
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162 | Parameters.Add(new OptionalValueParameter<DoubleValue>("BestKnownQuality", "The quality of the best known solution of this TSP instance."));
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163 | Parameters.Add(new OptionalValueParameter<Permutation>("BestKnownSolution", "The best known solution of this TSP instance."));
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164 |
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165 | DistanceMatrixParameter.ReactOnValueToStringChangedAndValueItemImageChanged = false;
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166 |
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167 | Coordinates = new DoubleMatrix(new double[,] {
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168 | { 100, 100 }, { 100, 200 }, { 100, 300 }, { 100, 400 },
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169 | { 200, 100 }, { 200, 200 }, { 200, 300 }, { 200, 400 },
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170 | { 300, 100 }, { 300, 200 }, { 300, 300 }, { 300, 400 },
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171 | { 400, 100 }, { 400, 200 }, { 400, 300 }, { 400, 400 }
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172 | });
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173 |
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174 | creator.PermutationParameter.ActualName = "TSPTour";
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175 | evaluator.QualityParameter.ActualName = "TSPTourLength";
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176 | ParameterizeSolutionCreator();
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177 | ParameterizeEvaluator();
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178 |
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179 | InitializeOperators();
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180 | AttachEventHandlers();
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181 | }
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182 |
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183 | #region Events
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184 | public event EventHandler SolutionCreatorChanged;
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185 | private void OnSolutionCreatorChanged() {
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186 | EventHandler handler = SolutionCreatorChanged;
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187 | if (handler != null) handler(this, EventArgs.Empty);
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188 | }
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189 | public event EventHandler EvaluatorChanged;
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190 | private void OnEvaluatorChanged() {
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191 | EventHandler handler = EvaluatorChanged;
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192 | if (handler != null) handler(this, EventArgs.Empty);
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193 | }
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194 | public event EventHandler OperatorsChanged;
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195 | private void OnOperatorsChanged() {
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196 | EventHandler handler = OperatorsChanged;
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197 | if (handler != null) handler(this, EventArgs.Empty);
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198 | }
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199 | public event EventHandler Reset;
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200 | private void OnReset() {
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201 | EventHandler handler = Reset;
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202 | if (handler != null) handler(this, EventArgs.Empty);
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203 | }
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204 |
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205 | private void CoordinatesParameter_ValueChanged(object sender, EventArgs e) {
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206 | Coordinates.ItemChanged += new EventHandler<EventArgs<int, int>>(Coordinates_ItemChanged);
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207 | Coordinates.Reset += new EventHandler(Coordinates_Reset);
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208 | ParameterizeSolutionCreator();
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209 | ClearDistanceMatrix();
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210 | }
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211 | private void Coordinates_ItemChanged(object sender, EventArgs<int, int> e) {
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212 | ClearDistanceMatrix();
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213 | }
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214 | private void Coordinates_Reset(object sender, EventArgs e) {
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215 | ParameterizeSolutionCreator();
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216 | ClearDistanceMatrix();
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217 | }
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218 | private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs e) {
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219 | SolutionCreator.PermutationParameter.ActualNameChanged += new EventHandler(SolutionCreator_PermutationParameter_ActualNameChanged);
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220 | ParameterizeSolutionCreator();
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221 | ParameterizeEvaluator();
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222 | ParameterizeAnalyzers();
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223 | ParameterizeOperators();
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224 | OnSolutionCreatorChanged();
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225 | }
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226 | private void SolutionCreator_PermutationParameter_ActualNameChanged(object sender, EventArgs e) {
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227 | ParameterizeEvaluator();
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228 | ParameterizeAnalyzers();
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229 | ParameterizeOperators();
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230 | }
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231 | private void EvaluatorParameter_ValueChanged(object sender, EventArgs e) {
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232 | Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
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233 | ParameterizeEvaluator();
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234 | UpdateMoveEvaluators();
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235 | ParameterizeAnalyzers();
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236 | ClearDistanceMatrix();
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237 | OnEvaluatorChanged();
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238 | }
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239 | private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
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240 | ParameterizeAnalyzers();
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241 | }
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242 | private void MoveGenerator_InversionMoveParameter_ActualNameChanged(object sender, EventArgs e) {
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243 | string name = ((ILookupParameter<InversionMove>)sender).ActualName;
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244 | foreach (IPermutationInversionMoveOperator op in Operators.OfType<IPermutationInversionMoveOperator>()) {
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245 | op.InversionMoveParameter.ActualName = name;
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246 | }
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247 | }
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248 | private void MoveGenerator_TranslocationMoveParameter_ActualNameChanged(object sender, EventArgs e) {
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249 | string name = ((ILookupParameter<TranslocationMove>)sender).ActualName;
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250 | foreach (IPermutationTranslocationMoveOperator op in Operators.OfType<IPermutationTranslocationMoveOperator>()) {
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251 | op.TranslocationMoveParameter.ActualName = name;
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252 | }
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253 | }
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254 | #endregion
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255 |
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256 | #region Helpers
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257 | [StorableHook(HookType.AfterDeserialization)]
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258 | private void AfterDeserialization() {
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259 | // BackwardsCompatibility3.3
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260 | #region Backwards compatible code (remove with 3.4)
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261 | OptionalValueParameter<DoubleMatrix> oldDistanceMatrixParameter = Parameters["DistanceMatrix"] as OptionalValueParameter<DoubleMatrix>;
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262 | if (oldDistanceMatrixParameter != null) {
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263 | Parameters.Remove(oldDistanceMatrixParameter);
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264 | Parameters.Add(new OptionalValueParameter<DistanceMatrix>("DistanceMatrix", "The matrix which contains the distances between the cities."));
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265 | DistanceMatrixParameter.GetsCollected = oldDistanceMatrixParameter.GetsCollected;
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266 | DistanceMatrixParameter.ReactOnValueToStringChangedAndValueItemImageChanged = false;
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267 | if (oldDistanceMatrixParameter.Value != null) {
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268 | DoubleMatrix oldDM = oldDistanceMatrixParameter.Value;
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269 | DistanceMatrix newDM = new DistanceMatrix(oldDM.Rows, oldDM.Columns, oldDM.ColumnNames, oldDM.RowNames);
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270 | newDM.SortableView = oldDM.SortableView;
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271 | for (int i = 0; i < newDM.Rows; i++)
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272 | for (int j = 0; j < newDM.Columns; j++)
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273 | newDM[i, j] = oldDM[i, j];
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274 | DistanceMatrixParameter.Value = (DistanceMatrix)newDM.AsReadOnly();
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275 | }
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276 | }
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277 |
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278 | if (operators == null) InitializeOperators();
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279 | #endregion
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280 | AttachEventHandlers();
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281 | }
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282 |
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283 | private void AttachEventHandlers() {
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284 | CoordinatesParameter.ValueChanged += new EventHandler(CoordinatesParameter_ValueChanged);
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285 | Coordinates.ItemChanged += new EventHandler<EventArgs<int, int>>(Coordinates_ItemChanged);
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286 | Coordinates.Reset += new EventHandler(Coordinates_Reset);
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287 | SolutionCreatorParameter.ValueChanged += new EventHandler(SolutionCreatorParameter_ValueChanged);
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288 | SolutionCreator.PermutationParameter.ActualNameChanged += new EventHandler(SolutionCreator_PermutationParameter_ActualNameChanged);
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289 | EvaluatorParameter.ValueChanged += new EventHandler(EvaluatorParameter_ValueChanged);
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290 | Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
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291 | }
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292 |
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293 | private void InitializeOperators() {
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294 | operators = new List<IOperator>();
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295 | operators.Add(new BestTSPSolutionAnalyzer());
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296 | operators.Add(new TSPAlleleFrequencyAnalyzer());
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297 | operators.Add(new TSPPopulationDiversityAnalyzer());
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298 | ParameterizeAnalyzers();
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299 | operators.AddRange(ApplicationManager.Manager.GetInstances<IPermutationOperator>().Cast<IOperator>());
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300 | ParameterizeOperators();
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301 | UpdateMoveEvaluators();
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302 | InitializeMoveGenerators();
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303 | }
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304 | private void InitializeMoveGenerators() {
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305 | foreach (IPermutationInversionMoveOperator op in Operators.OfType<IPermutationInversionMoveOperator>()) {
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306 | if (op is IMoveGenerator) {
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307 | op.InversionMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_InversionMoveParameter_ActualNameChanged);
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308 | }
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309 | }
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310 | foreach (IPermutationTranslocationMoveOperator op in Operators.OfType<IPermutationTranslocationMoveOperator>()) {
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311 | if (op is IMoveGenerator) {
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312 | op.TranslocationMoveParameter.ActualNameChanged += new EventHandler(MoveGenerator_TranslocationMoveParameter_ActualNameChanged);
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313 | }
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314 | }
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315 | }
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316 | private void UpdateMoveEvaluators() {
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317 | operators.RemoveAll(x => x is ISingleObjectiveMoveEvaluator);
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318 | foreach (ITSPPathMoveEvaluator op in ApplicationManager.Manager.GetInstances<ITSPPathMoveEvaluator>())
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319 | if (op.EvaluatorType == Evaluator.GetType()) {
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320 | operators.Add(op);
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321 | }
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322 | ParameterizeOperators();
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323 | OnOperatorsChanged();
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324 | }
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325 | private void ParameterizeSolutionCreator() {
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326 | SolutionCreator.LengthParameter.Value = new IntValue(Coordinates.Rows);
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327 | SolutionCreator.PermutationTypeParameter.Value = new PermutationType(PermutationTypes.RelativeUndirected);
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328 | }
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329 | private void ParameterizeEvaluator() {
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330 | if (Evaluator is ITSPPathEvaluator)
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331 | ((ITSPPathEvaluator)Evaluator).PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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332 | if (Evaluator is ITSPCoordinatesPathEvaluator) {
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333 | ITSPCoordinatesPathEvaluator evaluator = (ITSPCoordinatesPathEvaluator)Evaluator;
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334 | evaluator.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
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335 | evaluator.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
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336 | evaluator.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
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337 | }
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338 | }
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339 | private void ParameterizeAnalyzers() {
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340 | if (BestTSPSolutionAnalyzer != null) {
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341 | BestTSPSolutionAnalyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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342 | BestTSPSolutionAnalyzer.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
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343 | BestTSPSolutionAnalyzer.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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344 | BestTSPSolutionAnalyzer.ResultsParameter.ActualName = "Results";
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345 | BestTSPSolutionAnalyzer.BestKnownQualityParameter.ActualName = BestKnownQualityParameter.Name;
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346 | BestTSPSolutionAnalyzer.BestKnownSolutionParameter.ActualName = BestKnownSolutionParameter.Name;
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347 | BestTSPSolutionAnalyzer.MaximizationParameter.ActualName = MaximizationParameter.Name;
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348 | }
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349 |
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350 | if (TSPAlleleFrequencyAnalyzer != null) {
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351 | TSPAlleleFrequencyAnalyzer.MaximizationParameter.ActualName = MaximizationParameter.Name;
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352 | TSPAlleleFrequencyAnalyzer.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
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353 | TSPAlleleFrequencyAnalyzer.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
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354 | TSPAlleleFrequencyAnalyzer.SolutionParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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355 | TSPAlleleFrequencyAnalyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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356 | TSPAlleleFrequencyAnalyzer.BestKnownSolutionParameter.ActualName = BestKnownSolutionParameter.Name;
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357 | TSPAlleleFrequencyAnalyzer.ResultsParameter.ActualName = "Results";
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358 | }
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359 |
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360 | if (TSPPopulationDiversityAnalyzer != null) {
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361 | TSPPopulationDiversityAnalyzer.MaximizationParameter.ActualName = MaximizationParameter.Name;
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362 | TSPPopulationDiversityAnalyzer.SolutionParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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363 | TSPPopulationDiversityAnalyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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364 | TSPPopulationDiversityAnalyzer.ResultsParameter.ActualName = "Results";
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365 | }
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366 | }
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367 | private void ParameterizeOperators() {
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368 | foreach (IPermutationCrossover op in Operators.OfType<IPermutationCrossover>()) {
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369 | op.ParentsParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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370 | op.ChildParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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371 | }
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372 | foreach (IPermutationManipulator op in Operators.OfType<IPermutationManipulator>()) {
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373 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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374 | }
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375 | foreach (IPermutationMoveOperator op in Operators.OfType<IPermutationMoveOperator>()) {
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376 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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377 | }
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378 | foreach (ITSPPathMoveEvaluator op in Operators.OfType<ITSPPathMoveEvaluator>()) {
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379 | op.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
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380 | op.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
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381 | op.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
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382 | op.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
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383 | op.PermutationParameter.ActualName = SolutionCreator.PermutationParameter.ActualName;
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384 | }
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385 | string inversionMove = Operators.OfType<IMoveGenerator>().OfType<IPermutationInversionMoveOperator>().First().InversionMoveParameter.ActualName;
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386 | foreach (IPermutationInversionMoveOperator op in Operators.OfType<IPermutationInversionMoveOperator>())
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387 | op.InversionMoveParameter.ActualName = inversionMove;
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388 | string translocationMove = Operators.OfType<IMoveGenerator>().OfType<IPermutationTranslocationMoveOperator>().First().TranslocationMoveParameter.ActualName;
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389 | foreach (IPermutationTranslocationMoveOperator op in Operators.OfType<IPermutationTranslocationMoveOperator>())
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390 | op.TranslocationMoveParameter.ActualName = translocationMove;
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391 | }
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392 |
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393 | private void ClearDistanceMatrix() {
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394 | DistanceMatrixParameter.Value = null;
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395 | }
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396 | #endregion
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397 |
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398 | public void ImportFromTSPLIB(string tspFileName, string optimalTourFileName) {
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399 | TSPLIBParser tspParser = new TSPLIBParser(tspFileName);
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400 | tspParser.Parse();
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401 | Name = tspParser.Name + " TSP (imported from TSPLIB)";
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402 | if (!string.IsNullOrEmpty(tspParser.Comment)) Description = tspParser.Comment;
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403 | Coordinates = new DoubleMatrix(tspParser.Vertices);
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404 | if (tspParser.WeightType == TSPLIBParser.TSPLIBEdgeWeightType.EUC_2D) {
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405 | TSPRoundedEuclideanPathEvaluator evaluator = new TSPRoundedEuclideanPathEvaluator();
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406 | evaluator.QualityParameter.ActualName = "TSPTourLength";
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407 | Evaluator = evaluator;
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408 | } else if (tspParser.WeightType == TSPLIBParser.TSPLIBEdgeWeightType.GEO) {
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409 | TSPGeoPathEvaluator evaluator = new TSPGeoPathEvaluator();
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410 | evaluator.QualityParameter.ActualName = "TSPTourLength";
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411 | Evaluator = evaluator;
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412 | }
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413 | BestKnownQuality = null;
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414 | BestKnownSolution = null;
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415 |
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416 | if (!string.IsNullOrEmpty(optimalTourFileName)) {
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417 | TSPLIBTourParser tourParser = new TSPLIBTourParser(optimalTourFileName);
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418 | tourParser.Parse();
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419 | if (tourParser.Tour.Length != Coordinates.Rows) throw new InvalidDataException("Length of optimal tour is not equal to number of cities.");
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420 | BestKnownSolution = new Permutation(PermutationTypes.RelativeUndirected, tourParser.Tour);
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421 | }
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422 | OnReset();
|
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423 | }
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424 | public void ImportFromTSPLIB(string tspFileName, string optimalTourFileName, double bestKnownQuality) {
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425 | ImportFromTSPLIB(tspFileName, optimalTourFileName);
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426 | BestKnownQuality = new DoubleValue(bestKnownQuality);
|
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427 | }
|
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428 | }
|
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429 | }
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