source: branches/2994-AutoDiffForIntervals/HeuristicLab.Encodings.RealVectorEncoding/3.3/Crossovers/MultiRealVectorCrossover.cs @ 17209

Last change on this file since 17209 was 17209, checked in by gkronber, 4 months ago

#2994: merged r17132:17198 from trunk to branch

File size: 4.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Linq;
24using HeuristicLab.Collections;
25using HeuristicLab.Common;
26using HeuristicLab.Core;
27using HeuristicLab.Data;
28using HeuristicLab.Operators;
29using HeuristicLab.Optimization;
30using HeuristicLab.Parameters;
31using HEAL.Attic;
32using HeuristicLab.PluginInfrastructure;
33
34namespace HeuristicLab.Encodings.RealVectorEncoding {
35  [Item("MultiRealVectorCrossover", "Randomly selects and applies one of its crossovers every time it is called.")]
36  [StorableType("38437BE4-8B77-4347-A7F8-73D787942944")]
37  public class MultiRealVectorCrossover : StochasticMultiBranch<IRealVectorCrossover>, IRealVectorCrossover, IStochasticOperator {
38    public override bool CanChangeName {
39      get { return false; }
40    }
41    protected override bool CreateChildOperation {
42      get { return true; }
43    }
44
45    public ILookupParameter<ItemArray<RealVector>> ParentsParameter {
46      get { return (ILookupParameter<ItemArray<RealVector>>)Parameters["Parents"]; }
47    }
48    public ILookupParameter<RealVector> ChildParameter {
49      get { return (ILookupParameter<RealVector>)Parameters["Child"]; }
50    }
51    public IValueLookupParameter<DoubleMatrix> BoundsParameter {
52      get { return (IValueLookupParameter<DoubleMatrix>)Parameters["Bounds"]; }
53    }
54
55    [StorableConstructor]
56    protected MultiRealVectorCrossover(StorableConstructorFlag _) : base(_) { }
57    protected MultiRealVectorCrossover(MultiRealVectorCrossover original, Cloner cloner)
58      : base(original, cloner) {
59    }
60    public MultiRealVectorCrossover()
61      : base() {
62      Parameters.Add(new ScopeTreeLookupParameter<RealVector>("Parents", "The parent real vector which should be crossed."));
63      ParentsParameter.ActualName = "RealVector";
64      Parameters.Add(new LookupParameter<RealVector>("Child", "The child real vector resulting from the crossover."));
65      ChildParameter.ActualName = "RealVector";
66      Parameters.Add(new ValueLookupParameter<DoubleMatrix>("Bounds", "The lower and upper bounds for each dimension of the vector."));
67
68      foreach (Type type in ApplicationManager.Manager.GetTypes(typeof(IRealVectorCrossover))) {
69        if (!typeof(MultiOperator<IRealVectorCrossover>).IsAssignableFrom(type))
70          Operators.Add((IRealVectorCrossover)Activator.CreateInstance(type), true);
71      }
72
73      SelectedOperatorParameter.ActualName = "SelectedCrossoverOperator";
74    }
75
76    public override IDeepCloneable Clone(Cloner cloner) {
77      return new MultiRealVectorCrossover(this, cloner);
78    }
79
80    protected override void Operators_ItemsReplaced(object sender, CollectionItemsChangedEventArgs<IndexedItem<IRealVectorCrossover>> e) {
81      base.Operators_ItemsReplaced(sender, e);
82      ParameterizeCrossovers();
83    }
84
85    protected override void Operators_ItemsAdded(object sender, CollectionItemsChangedEventArgs<IndexedItem<IRealVectorCrossover>> e) {
86      base.Operators_ItemsAdded(sender, e);
87      ParameterizeCrossovers();
88    }
89
90    private void ParameterizeCrossovers() {
91      foreach (IRealVectorCrossover crossover in Operators.OfType<IRealVectorCrossover>()) {
92        crossover.ChildParameter.ActualName = ChildParameter.Name;
93        crossover.ParentsParameter.ActualName = ParentsParameter.Name;
94        crossover.BoundsParameter.ActualName = BoundsParameter.Name;
95      }
96      foreach (IStochasticOperator crossover in Operators.OfType<IStochasticOperator>()) {
97        crossover.RandomParameter.ActualName = RandomParameter.Name;
98      }
99    }
100
101    public override IOperation InstrumentedApply() {
102      if (Operators.Count == 0) throw new InvalidOperationException(Name + ": Please add at least one real vector crossover to choose from.");
103      return base.InstrumentedApply();
104    }
105  }
106}
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