#region License Information
/* HeuristicLab
* Copyright (C) 2002-2012 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 HeuristicLab.Common;
using HeuristicLab.Core;
using HeuristicLab.Data;
using HeuristicLab.Operators;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
namespace HeuristicLab.Encodings.RealVectorEncoding {
[Item("RealVectorParticleCreator", "Creates a particle with position, zero velocity vector and personal best.")]
[StorableClass]
public class RealVectorParticleCreator : AlgorithmOperator, IRealVectorParticleCreator {
#region Parameters
public ILookupParameter ProblemSizeParameter {
get { return (ILookupParameter)Parameters["ProblemSize"]; }
}
public IValueLookupParameter BoundsParameter {
get { return (IValueLookupParameter)Parameters["Bounds"]; }
}
public ILookupParameter RealVectorParameter {
get { return (ILookupParameter)Parameters["RealVector"]; }
}
public ILookupParameter PersonalBestParameter {
get { return (ILookupParameter)Parameters["PersonalBest"]; }
}
public ILookupParameter VelocityParameter {
get { return (ILookupParameter)Parameters["Velocity"]; }
}
#endregion
#region Parameter Values
protected int ProblemSize {
get { return ProblemSizeParameter.ActualValue.Value; }
}
protected RealVector Velocity {
set { VelocityParameter.ActualValue = value; }
}
#endregion
#region Construction & Cloning
[StorableConstructor]
protected RealVectorParticleCreator(bool deserializing) : base(deserializing) { }
protected RealVectorParticleCreator(RealVectorParticleCreator original, Cloner cloner) : base(original, cloner) { }
public RealVectorParticleCreator()
: base() {
Parameters.Add(new LookupParameter("ProblemSize", "The dimension of the problem."));
Parameters.Add(new ValueLookupParameter("Bounds", "The lower and upper bounds in each dimension."));
Parameters.Add(new LookupParameter("RealVector", "Particle's current solution"));
Parameters.Add(new LookupParameter("PersonalBest", "Particle's personal best solution."));
Parameters.Add(new LookupParameter("Velocity", "Particle's current velocity."));
UniformRandomRealVectorCreator realVectorCreater = new UniformRandomRealVectorCreator();
Assigner personalBestPositionAssigner = new Assigner();
OperatorGraph.InitialOperator = realVectorCreater;
realVectorCreater.RealVectorParameter.ActualName = RealVectorParameter.Name;
realVectorCreater.LengthParameter.ActualName = ProblemSizeParameter.Name;
realVectorCreater.BoundsParameter.ActualName = BoundsParameter.Name;
realVectorCreater.Successor = personalBestPositionAssigner;
personalBestPositionAssigner.LeftSideParameter.ActualName = PersonalBestParameter.Name;
personalBestPositionAssigner.RightSideParameter.ActualName = RealVectorParameter.Name;
personalBestPositionAssigner.Successor = null;
}
public override IDeepCloneable Clone(Cloner cloner) {
return new RealVectorParticleCreator(this, cloner);
}
#endregion
public override IOperation Apply() {
Velocity = new RealVector(ProblemSize);
return base.Apply();
}
}
}