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source: branches/HeuristicLab.BinPacking/HeuristicLab.Problems.BinPacking/3.3/PackingSolutionDecoder.cs @ 13949

Last change on this file since 13949 was 13613, checked in by gkronber, 9 years ago

#1966: started work on PackingSequenceEncoding

File size: 4.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 Joseph Helm and 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
22
23using HeuristicLab.Problems.BinPacking.Interfaces;
24using HeuristicLab.Core;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26using HeuristicLab.Common;
27using HeuristicLab.Operators;
28using HeuristicLab.Parameters;
29using HeuristicLab.Problems.BinPacking.Shapes;
30using HeuristicLab.Encodings.PackingEncoding.PackingPlan;
31using HeuristicLab.Data;
32
33namespace HeuristicLab.Problems.BinPacking.Decoders {
34
35  [Item("Packing-Solution Decoder", "An operator to create a concrete bin packing solution from a given encoding-instance.")]
36  [StorableClass]
37  public abstract class PackingSolutionDecoder<D, B, I> : SingleSuccessorOperator, IPackingSolutionDecoder
38    where D : class, IPackingDimensions
39    where B : PackingShape<D>, IPackingBin
40    where I : PackingShape<D>, IPackingItem {
41
42    public ILookupParameter<IRandom> RandomParameter {
43      get { return (LookupParameter<IRandom>)Parameters["Random"]; }
44    }
45    private ILookupParameter<ItemList<I>> PackingItemMeasuresParameter {
46      get { return (LookupParameter<ItemList<I>>)Parameters["PackingItemMeasures"]; }
47    }
48    private ILookupParameter<B> PackingBinMeasuresParameter {
49      get { return (LookupParameter<B>)Parameters["PackingBinMeasures"]; }
50    }
51    public ILookupParameter<IItem> EncodedSolutionParameter {
52      get { return (ILookupParameter<IItem>)Parameters["EncodedSolution"]; }
53    }
54    public ILookupParameter<PackingPlan<D,B,I>> PackingPlanParameter {
55      get { return (ILookupParameter<PackingPlan<D, B, I>>)Parameters["PackingPlan"]; }
56    }
57    public ValueParameter<BoolValue> StackingConstraintsParameter {
58      get { return (ValueParameter<BoolValue>)Parameters["StackingConstraint"]; }
59    }
60
61
62    public PackingSolutionDecoder() : base() {
63      Parameters.Add(new LookupParameter<IItem>("EncodedSolution", "The new bin-packing solution represented as encoding."));
64      Parameters.Add(new LookupParameter<PackingPlan<D, B, I>>("PackingPlan", "The decoded bin-packing solution represented as generalized packing plan."));
65      Parameters.Add(new LookupParameter<IRandom>("Random", "The pseudo random number generator which should be used for stochastic manipulation operators."));
66      Parameters.Add(new LookupParameter<ItemList<I>>("PackingItemMeasures", "Packing-item data taken from the bin-packing problem-instance."));
67      Parameters.Add(new LookupParameter<B>("PackingBinMeasures", "Packing-bin data taken from the bin-packing problem-instance."));
68      Parameters.Add(new ValueParameter<BoolValue>("StackingConstraint", "A flag determining whether stacking constraints should be enforced or not.", new BoolValue(true)));
69    }
70
71    [StorableConstructor]
72    protected PackingSolutionDecoder(bool deserializing) : base(deserializing) { }
73    protected PackingSolutionDecoder(PackingSolutionDecoder<D,B,I> original, Cloner cloner)
74      : base(original, cloner) {
75    }
76
77    public abstract PackingPlan<D, B, I> CreatePackingPlanFromEncoding(IItem solution, B binMeasures, ItemList<I> itemMeasures);
78
79    public override IOperation Apply() {
80      PackingPlan<D, B, I> result = CreatePackingPlanFromEncoding(EncodedSolutionParameter.ActualValue, PackingBinMeasuresParameter.ActualValue, PackingItemMeasuresParameter.ActualValue);
81      PackingPlanParameter.ActualValue = result;
82      return base.Apply();
83    }
84  }
85}
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