[13368] | 1 | #region License Information
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[5143] | 2 | /* HeuristicLab
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[12012] | 3 | * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[5143] | 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.Operators;
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| 25 | using HeuristicLab.Parameters;
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| 26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 27 |
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| 28 | namespace HeuristicLab.Optimization.Operators {
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| 29 | [Item("ParentCopyCrossover", "This operator creates an offspring by creating a clone of a randomly chosen parent. It can be used in situations where no crossover should occur after selection.")]
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[14711] | 30 | [StorableType("1687985E-45B1-4726-BDD8-BB461016EEE6")]
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[10291] | 31 | public class ParentCopyCrossover : InstrumentedOperator, ICrossover, IStochasticOperator {
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[5143] | 32 | public ILookupParameter<IRandom> RandomParameter {
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| 33 | get { return (ILookupParameter<IRandom>)Parameters["Random"]; }
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| 34 | }
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| 35 |
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| 36 |
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| 37 | [StorableConstructor]
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| 38 | protected ParentCopyCrossover(bool deserializing) : base(deserializing) { }
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| 39 | protected ParentCopyCrossover(ParentCopyCrossover original, Cloner cloner) : base(original, cloner) { }
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| 40 | public ParentCopyCrossover()
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| 41 | : base() {
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| 42 | Parameters.Add(new LookupParameter<IRandom>("Random", "The random number generator."));
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| 43 | }
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| 44 |
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[10291] | 45 | public override IOperation InstrumentedApply() {
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[5143] | 46 | IScope scope = ExecutionContext.Scope;
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| 47 | int index = RandomParameter.ActualValue.Next(scope.SubScopes.Count);
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| 48 | IScope child = scope.SubScopes[index];
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| 49 |
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| 50 | foreach (IVariable var in child.Variables)
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| 51 | scope.Variables.Add((IVariable)var.Clone());
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| 52 |
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[10291] | 53 | return base.InstrumentedApply();
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[5143] | 54 | }
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| 55 |
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| 56 | public override IDeepCloneable Clone(Cloner cloner) {
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| 57 | return new ParentCopyCrossover(this, cloner);
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| 58 | }
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| 59 | }
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| 60 | }
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