#region License Information /* HeuristicLab * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * HeuristicLab is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with HeuristicLab. If not, see . */ #endregion using System; using System.Collections.Generic; using System.Linq; using System.Text; using HeuristicLab.Operators; using HeuristicLab.Persistence.Default.CompositeSerializers.Storable; using HeuristicLab.Core; using HeuristicLab.Data; using HeuristicLab.Optimization; using HeuristicLab.Parameters; using HeuristicLab.Common; namespace HeuristicLab.Algorithms.NSGA2 { [Item("BasicMultiObjectiveSolutionAnalyzer", "Basic analyzer for multiobjective problems that collects and presents the current pareto front as double matrix.")] [StorableClass] public class BasicMultiObjectiveQualityAnalyzer : SingleSuccessorOperator, IAnalyzer { public IScopeTreeLookupParameter RankParameter { get { return (IScopeTreeLookupParameter)Parameters["Rank"]; } } public IScopeTreeLookupParameter QualitiesParameter { get { return (IScopeTreeLookupParameter)Parameters["Qualities"]; } } public ILookupParameter ResultsParameter { get { return (ILookupParameter)Parameters["Results"]; } } [StorableConstructor] protected BasicMultiObjectiveQualityAnalyzer(bool deserializing) : base(deserializing) { } protected BasicMultiObjectiveQualityAnalyzer(BasicMultiObjectiveQualityAnalyzer original, Cloner cloner) : base(original, cloner) { } public BasicMultiObjectiveQualityAnalyzer() { Parameters.Add(new ScopeTreeLookupParameter("Rank", "The rank of solution describes to which front it belongs.")); Parameters.Add(new ScopeTreeLookupParameter("Qualities", "The vector of qualities of each solution.")); Parameters.Add(new LookupParameter("Results", "The result collection to store the front to.")); } public override IOperation Apply() { ItemArray ranks = RankParameter.ActualValue; ItemArray qualities = QualitiesParameter.ActualValue; ResultCollection results = ResultsParameter.ActualValue; bool populationLevel = RankParameter.Depth == 1; int objectives = qualities[0].Length; int frontSize = ranks.Count(x => x.Value == 0); ItemArray paretoArchive = null; if (populationLevel) paretoArchive = new ItemArray(frontSize); DoubleMatrix front = new DoubleMatrix(frontSize, objectives); int counter = 0; for (int i = 0; i < ranks.Length; i++) { if (ranks[i].Value == 0) { for (int k = 0; k < objectives; k++) front[counter, k] = qualities[i][k]; if (populationLevel) { paretoArchive[counter] = (IScope)ExecutionContext.Scope.SubScopes[i].Clone(); } counter++; } } if (results.ContainsKey("Pareto Front")) results["Pareto Front"].Value = front; else results.Add(new Result("Pareto Front", front)); if (populationLevel) { if (results.ContainsKey("Pareto Archive")) results["Pareto Archive"].Value = paretoArchive; else results.Add(new Result("Pareto Archive", paretoArchive)); } return base.Apply(); } public override IDeepCloneable Clone(Cloner cloner) { return new BasicMultiObjectiveQualityAnalyzer(this, cloner); } } }