| 1 | using HeuristicLab.Common;
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| 2 | using HeuristicLab.Core;
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| 3 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
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| 4 | using HeuristicLab.Operators;
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| 5 | using HeuristicLab.Optimization;
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| 6 | using HeuristicLab.Parameters;
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| 7 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 8 |
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| 9 | namespace HeuristicLab.Problems.MetaOptimization {
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| 10 | [StorableClass]
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| 11 | public class SymbolicExpressionGrammarCrossover : SingleSuccessorOperator, IDoubleValueCrossover, IStochasticOperator {
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| 12 | public ILookupParameter<IRandom> RandomParameter {
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| 13 | get { return (LookupParameter<IRandom>)Parameters["Random"]; }
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| 14 | }
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| 15 |
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| 16 | public SymbolicExpressionGrammarCrossover() { }
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| 17 | [StorableConstructor]
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| 18 | protected SymbolicExpressionGrammarCrossover(bool deserializing) : base(deserializing) { }
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| 19 | protected SymbolicExpressionGrammarCrossover(SymbolicExpressionGrammarCrossover original, Cloner cloner)
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| 20 | : base(original, cloner) {
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| 21 | }
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| 22 | public override IDeepCloneable Clone(Cloner cloner) {
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| 23 | return new SymbolicExpressionGrammarCrossover(this, cloner);
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| 24 | }
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| 25 |
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| 26 | public void Apply(IRandom random, ISymbolicExpressionGrammar value, ISymbolicExpressionGrammar other) {
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| 27 | ApplyStatic(random, value, other, range);
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| 28 | }
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| 29 |
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| 30 | public static void ApplyStatic(IRandom random, ISymbolicExpressionGrammar value, ISymbolicExpressionGrammar other) {
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| 31 | value.Value = (value.Value + other.Value) / 2;
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| 32 | value.Value = range.ApplyStepSize(value.Value);
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| 33 | }
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| 34 | }
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| 35 | }
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