#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.Encodings.IntegerVectorEncoding;
using HeuristicLab.Encodings.PackingEncoding.GroupingVector;
using HeuristicLab.Optimization;
using HeuristicLab.Parameters;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.Problems.BinPacking.Decoders;
using HeuristicLab.Problems.BinPacking.Dimensions;
using HeuristicLab.Problems.BinPacking.Evaluators;
using HeuristicLab.Problems.BinPacking.Interfaces;
using HeuristicLab.Problems.BinPacking.PackingBin;
using HeuristicLab.Problems.BinPacking.PackingItem;
namespace HeuristicLab.Problems.BinPacking {
[Item("Grouping Vector MoveEvaluator", "Base class for evaluating packing moves.")]
[StorableClass]
public class GroupingVectorMoveEvaluator : PackingMoveEvaluator, ISingleObjectiveMoveEvaluator, IGroupingVectorMoveOperator{
public ILookupParameter SingleGroupingMoveParameter {
get { return (ILookupParameter)Parameters["SingleGroupingMove"]; }
}
public ILookupParameter GroupingVectorParameter {
get { return (ILookupParameter)Parameters["GroupingVector"]; }
}
[StorableConstructor]
protected GroupingVectorMoveEvaluator(bool deserializing) : base(deserializing) { }
protected GroupingVectorMoveEvaluator(GroupingVectorMoveEvaluator original, Cloner cloner) : base(original, cloner) { }
public GroupingVectorMoveEvaluator()
: base() {
Parameters.Add(new LookupParameter("SingleGroupingMove", "The move to evaluate."));
Parameters.Add(new LookupParameter("GroupingVector", "The solution to evaluate."));
}
public override IDeepCloneable Clone(Cloner cloner) {
return new GroupingVectorMoveEvaluator(this, cloner);
}
public override IOperation Apply() {
GroupingVectorEncoding groupingVector = GroupingVectorParameter.ActualValue;
SingleGroupingMove move = SingleGroupingMoveParameter.ActualValue;
GroupingVectorEncoding newSolution = new GroupingVectorEncoding();
newSolution.GroupingVector = new IntegerVector (groupingVector.GroupingVector);
newSolution.GroupingVector[move.Index] = move.NewGroup;
var packingPlan = ExtremePointGroupingVectorDecoder3D.Decode(newSolution, PackingBinMeasuresParameter.ActualValue, PackingItemMeasuresParameter.ActualValue);
DoubleValue quality = PackingRatioRegularIdenticalBinEvaluator.CalculatePackingRatio(
packingPlan, PackingBinMeasuresParameter.ActualValue, PackingItemMeasuresParameter.ActualValue);
double moveQuality = quality.Value;
if (MoveQualityParameter.ActualValue == null) MoveQualityParameter.ActualValue = new DoubleValue(moveQuality);
else MoveQualityParameter.ActualValue.Value = moveQuality;
return base.Apply();
}
}
}