[9348] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[13032] | 3 | * Copyright (C) 2002-2015 Joseph Helm and Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[9348] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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[13032] | 22 |
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[9348] | 23 | using System;
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| 24 | using System.Linq;
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| 25 | using HeuristicLab.Problems.BinPacking.Interfaces;
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| 26 | using HeuristicLab.Problems.BinPacking.Shapes;
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| 27 | using HeuristicLab.Core;
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| 28 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 29 | using HeuristicLab.Common;
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| 30 | using HeuristicLab.Parameters;
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| 31 | using HeuristicLab.Problems.BinPacking.Decoders;
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| 32 | using HeuristicLab.PluginInfrastructure;
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| 33 | using HeuristicLab.Data;
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| 34 | using HeuristicLab.Problems.BinPacking.Analyzers;
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| 35 | using HeuristicLab.Encodings.PackingEncoding.PackingSequence;
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| 36 | using HeuristicLab.Encodings.PackingEncoding.GroupingVector;
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| 37 | using HeuristicLab.Problems.Instances;
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[9440] | 38 | using HeuristicLab.Encodings.PackingEncoding.MultiComponentVector;
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[9348] | 39 |
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| 40 | namespace HeuristicLab.Problems.BinPacking.Problem {
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| 41 | [Item("RegularIdenticalBinPackingProblem", "Represents a bin-packing problem-instance using only bins with identical measures and bins/items with regular shapes (e.g. rectangle, cuboid).")]
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| 42 | [StorableClass]
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| 43 | public abstract class RegularIdenticalBinPackingProblem<D, B, I> : BinPackingProblem<D, B, I>, IProblemInstanceConsumer<BPPData>, IProblemInstanceExporter<BPPData>
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| 44 | where D : class, IPackingDimensions
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| 45 | where B : PackingShape<D>, IPackingBin, IRegularPackingShape, new()
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| 46 | where I : PackingShape<D>, IPackingItem, IRegularPackingShape, new() {
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| 47 |
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| 48 | #region Parameter Properties
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[13461] | 49 | public IValueParameter<B> PackingBinMeasuresParameter {
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| 50 | get { return (IValueParameter<B>)Parameters["PackingBinMeasures"]; }
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[9348] | 51 | }
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[13461] | 52 | public IConstrainedValueParameter<IPackingSolutionDecoder> PackingSolutionDecoderParameter {
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| 53 | get { return (IConstrainedValueParameter<IPackingSolutionDecoder>)Parameters["PackingSolutionDecoder"]; }
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[9348] | 54 | }
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| 55 | #endregion
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| 56 |
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| 57 | #region Properties
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| 58 | public B PackingBinMeasures {
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| 59 | get { return PackingBinMeasuresParameter.Value; }
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| 60 | set { PackingBinMeasuresParameter.Value = value; }
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| 61 | }
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[9495] | 62 | public PackingSolutionDecoder<D,B,I> PackingSolutionDecoder {
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| 63 | get { return PackingSolutionDecoderParameter.Value as PackingSolutionDecoder<D, B, I>; }
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[9348] | 64 | set { PackingSolutionDecoderParameter.Value = value; }
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| 65 | }
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| 66 | #endregion
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| 67 |
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| 68 |
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| 69 | [StorableConstructor]
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| 70 | protected RegularIdenticalBinPackingProblem(bool deserializing) : base(deserializing) { }
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| 71 | protected RegularIdenticalBinPackingProblem(RegularIdenticalBinPackingProblem<D,B,I> original, Cloner cloner)
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| 72 | : base(original, cloner) {
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| 73 | InitializeEventHandlers();
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| 74 | }
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| 75 |
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[9440] | 76 | protected RegularIdenticalBinPackingProblem(IPackingPlanEvaluationAlgorithm e) : this(e, new MultiComponentVectorRandomCreator()) { }
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[9348] | 77 | protected RegularIdenticalBinPackingProblem(IPackingPlanEvaluationAlgorithm e, IPackingSolutionCreator c)
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| 78 | : base(e, c) {
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| 79 | Parameters.Add(new ValueParameter<B>("PackingBinMeasures", "Packing-bin data defining the measures of the used bins.", new B()));
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| 80 | Parameters.Add(new ValueParameter<IPackingPlanEvaluator>("PackingPlanEvaluator", "The evaluator is used to determine the quality of a solution.", CreateDefaultEvaluator()));
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[9563] | 81 | Parameters.Add(new ConstrainedValueParameter<IPackingSolutionDecoder>("PackingSolutionDecoder", "The operator that decodes the representation and creates a packing plan."));
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[9348] | 82 | this.Maximization.Value = true;
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| 83 | InitializeProblemInstance();
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| 84 | InitializeOperators();
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| 85 | InitializeEventHandlers();
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| 86 | }
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| 87 |
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| 88 |
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| 89 |
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| 90 |
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| 91 | #region Helpers
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| 92 | protected override void InitializeProblemInstance() {
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| 93 | InitializeProblemData();
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| 94 | ApplyHorizontalOrientation();
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| 95 | SortItems();
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[9598] | 96 | RemoveTooBigItems();
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[9348] | 97 | PackingItemsParameter.Value.Value = PackingItemMeasures.Count;
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| 98 | LowerBoundParameter.Value.Value = CalculateLowerBound();
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| 99 | }
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[9598] | 100 | protected abstract void RemoveTooBigItems();
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[9348] | 101 | protected abstract void InitializeProblemData();
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| 102 | protected abstract IPackingPlanEvaluator CreateDefaultEvaluator();
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| 103 | private void ApplyHorizontalOrientation() {
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| 104 | PackingBinMeasures.ApplyHorizontalOrientation();
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| 105 | foreach (IRegularPackingShape shape in PackingItemMeasures) {
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| 106 | shape.ApplyHorizontalOrientation();
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| 107 | }
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| 108 | }
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| 109 | private void SortItems() {
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| 110 | PackingItemMeasures.Sort((x, y) => y.CompareTo(x));
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| 111 | }
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| 112 | private int CalculateLowerBound() {
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| 113 | //This is the obvious continuous lower bound calculation; Martello and Vigo proposed a better way but it has not been implemented yet;
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[13605] | 114 | int items = PackingItemMeasures.Select(x => x.Volume).Sum();
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| 115 | int bin = PackingBinMeasures.Volume;
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[9348] | 116 | return (items + bin - 1)/(bin);
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| 117 | }
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| 118 |
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| 119 | protected override void InitializeOperators() {
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| 120 | Operators.Clear();
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| 121 | Operators.Add(new BestBinPackingSolutionAnalyzer<D, B, I>());
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| 122 |
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| 123 | ApplyEncoding();
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| 124 | ParameterizeOperators();
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| 125 | }
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| 126 | private void ApplyEncoding() {
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| 127 | if (SolutionCreator.GetType() == typeof(PackingSequenceRandomCreator)) {
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| 128 | Operators.AddRange(ApplicationManager.Manager.GetInstances<IPackingSequenceOperator>());
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| 129 | InitializeDecoder();
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| 130 | } else if (SolutionCreator.GetType() == typeof(GroupingVectorRandomCreator)) {
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| 131 | Operators.AddRange(ApplicationManager.Manager.GetInstances<IGroupingVectorOperator>());
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| 132 | InitializeDecoder();
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[9440] | 133 | } else if (SolutionCreator.GetType() == typeof(MultiComponentVectorRandomCreator)) {
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| 134 | Operators.AddRange(ApplicationManager.Manager.GetInstances<IMultiComponentVectorOperator>());
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| 135 | InitializeDecoder();
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[9348] | 136 | }
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| 137 | }
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| 138 | private void ParameterizeOperators() {
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| 139 | foreach (var op in Operators.OfType<BestBinPackingSolutionAnalyzer<D, B, I>>()) {
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| 140 | op.QualityParameter.ActualName = PackingPlanEvaluator.QualityParameter.ActualName;
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| 141 | }
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| 142 |
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| 143 | Evaluator.PackingSolutionDecoderParameter.ActualName = PackingSolutionDecoderParameter.Name;
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| 144 | Evaluator.PackingSolutionDecoderParameter.Hidden = true;
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| 145 | Evaluator.PackingPlanEvaluatorParameter.ActualName = PackingPlanEvaluatorParameter.Name;
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| 146 | Evaluator.PackingPlanEvaluatorParameter.Hidden = true;
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| 147 | Evaluator.QualityParameter.ActualName = PackingPlanEvaluator.QualityParameter.ActualName;
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| 148 | Evaluator.QualityParameter.Hidden = true;
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| 149 |
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| 150 | if (PackingSolutionDecoder != null)
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| 151 | PackingSolutionDecoder.EncodedSolutionParameter.ActualName = SolutionCreator.EncodedSolutionParameter.ActualName;
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| 152 |
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| 153 | if (PackingSolutionDecoder != null) {
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| 154 | PackingPlanEvaluator.PackingPlanParameter.ActualName = PackingSolutionDecoder.PackingPlanParameter.ActualName;
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| 155 | PackingPlanEvaluator.PackingPlanParameter.Hidden = true;
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| 156 | } else {
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| 157 | PackingPlanEvaluator.PackingPlanParameter.ActualName = PackingPlanEvaluator.PackingPlanParameter.Name;
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| 158 | PackingPlanEvaluator.PackingPlanParameter.Hidden = false;
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| 159 | }
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| 160 |
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| 161 | foreach (var op in Operators.OfType<IPackingSolutionManipulator>()) {
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| 162 | op.EncodedSolutionParameter.ActualName = SolutionCreator.EncodedSolutionParameter.ActualName;
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| 163 | op.EncodedSolutionParameter.Hidden = true;
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| 164 | }
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| 165 |
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| 166 | foreach (var op in Operators.OfType<IPackingSolutionCrossover>()) {
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| 167 | op.ChildParameter.ActualName = SolutionCreator.EncodedSolutionParameter.ActualName;
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| 168 | op.ChildParameter.Hidden = true;
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| 169 | op.ParentsParameter.ActualName = SolutionCreator.EncodedSolutionParameter.ActualName;
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| 170 | op.ParentsParameter.Hidden = true;
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| 171 | }
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| 172 |
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| 173 | foreach (var op in Operators.OfType<BestBinPackingSolutionAnalyzer<D, B, I>>()) {
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| 174 | op.QualityParameter.ActualName = PackingPlanEvaluator.QualityParameter.ActualName;
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| 175 | if (PackingSolutionDecoder != null) {
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| 176 | op.PackingPlanParameter.ActualName = PackingSolutionDecoder.PackingPlanParameter.ActualName;
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| 177 | op.PackingPlanParameter.Hidden = true;
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| 178 | } else {
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| 179 | op.PackingPlanParameter.ActualName = op.PackingPlanParameter.Name;
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| 180 | op.PackingPlanParameter.Hidden = false;
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| 181 | }
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| 182 | }
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| 183 |
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| 184 | }
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| 185 |
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| 186 | protected override void InitializeEventHandlers() {
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| 187 | PackingPlanEvaluatorParameter.ValueChanged += PackingPlanEvaluatorParameter_ValueChanged;
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| 188 | PackingPlanEvaluator.QualityParameter.ActualNameChanged += PackingPlanEvaluator_QualityParameter_ActualNameChanged;
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| 189 | SolutionCreatorParameter.ValueChanged += SolutionCreatorParameter_ValueChanged;
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| 190 | SolutionCreator.EncodedSolutionParameter.ActualNameChanged += SolutionCreator_EncodedSolutionParameter_ActualNameChanged;
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| 191 | PackingSolutionDecoderParameter.ValueChanged += PackingSolutionDecoderParameter_ValueChanged;
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| 192 | if (PackingSolutionDecoder != null) PackingSolutionDecoder.PackingPlanParameter.ActualNameChanged += PackingSolutionDecoder_PackingPlanParameter_ActualNameChanged;
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| 193 | }
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[9440] | 194 |
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[9348] | 195 | #endregion
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| 196 |
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| 197 | #region Events
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| 198 | protected override void OnSolutionCreatorChanged() {
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| 199 | InitializeOperators();
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| 200 | }
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| 201 | protected override void OnEvaluatorChanged() {
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| 202 | base.OnEvaluatorChanged();
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| 203 | ParameterizeOperators();
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| 204 | }
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| 205 | private void PackingPlanEvaluatorParameter_ValueChanged(object sender, EventArgs eventArgs) {
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| 206 | PackingPlanEvaluator.QualityParameter.ActualNameChanged += PackingPlanEvaluator_QualityParameter_ActualNameChanged;
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| 207 | ParameterizeOperators();
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| 208 | }
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| 209 | private void PackingPlanEvaluator_QualityParameter_ActualNameChanged(object sender, EventArgs eventArgs) {
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| 210 | ParameterizeOperators();
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| 211 | }
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| 212 | private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs eventArgs) {
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| 213 | SolutionCreator.EncodedSolutionParameter.ActualNameChanged += SolutionCreator_EncodedSolutionParameter_ActualNameChanged;
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| 214 | ParameterizeOperators();
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| 215 | }
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| 216 | private void SolutionCreator_EncodedSolutionParameter_ActualNameChanged(object sender, EventArgs eventArgs) {
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| 217 | ParameterizeOperators();
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| 218 | }
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| 219 | private void PackingSolutionDecoderParameter_ValueChanged(object sender, EventArgs eventArgs) {
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| 220 | if (PackingSolutionDecoder != null) PackingSolutionDecoder.PackingPlanParameter.ActualNameChanged += PackingSolutionDecoder_PackingPlanParameter_ActualNameChanged;
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| 221 | ParameterizeOperators();
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| 222 | }
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| 223 | private void PackingSolutionDecoder_PackingPlanParameter_ActualNameChanged(object sender, EventArgs eventArgs) {
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| 224 | ParameterizeOperators();
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| 225 | }
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| 226 | #endregion
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| 227 |
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| 228 |
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| 229 | #region Problem instance handling
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[9563] | 230 | public virtual void Load(BPPData data) {
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[13605] | 231 | // var realData = data as RealBPPData;
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| 232 | // var binData = new B();
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| 233 | // binData.InitializeFromMeasures (data.BinMeasures);
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| 234 | //
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| 235 | // var itemData = new ItemList<I>(data.Items);
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| 236 | // for (int j = 0; j < data.Items; j++) {
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| 237 | // var item = new I();
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| 238 | // item.InitializeFromMeasures(data.ItemMeasures[j]);
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| 239 | // item.AddTargetBinMeasures(data.BinMeasures);
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| 240 | // if (realData != null) {
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| 241 | // item.Weight = realData.ItemWeights[j];
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| 242 | // item.Material = realData.ItemMaterials[j];
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| 243 | // }
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| 244 | // itemData.Add(item);
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| 245 | // }
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| 246 | //
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| 247 | // BestKnownQuality = data.BestKnownQuality.HasValue ? new DoubleValue(data.BestKnownQuality.Value) : null;
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| 248 | //
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| 249 | // PackingBinMeasures = binData;
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| 250 | // PackingItemMeasures = itemData;
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| 251 | //
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| 252 | // ApplyHorizontalOrientation();
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| 253 | // SortItems();
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| 254 | // PackingItemsParameter.Value.Value = PackingItemMeasures.Count;
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| 255 | // LowerBoundParameter.Value.Value = CalculateLowerBound();
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[9348] | 256 |
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[13605] | 257 | throw new NotImplementedException();
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[13460] | 258 | }
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[9348] | 259 |
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| 260 | public BPPData Export() {
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[13605] | 261 | // var result = new BPPData{
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| 262 | // Name = Name,
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| 263 | // Description = Description,
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| 264 | // Items = PackingItemsParameter.Value.Value,
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| 265 | // BinMeasures = PackingBinMeasures.ToArray() // TODO: split functionality of class in 2d and 3d code
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| 266 | // };
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| 267 | //
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| 268 | // var itemMeasures = new int[result.Items][];
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| 269 | // int i = 0;
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| 270 | // foreach (var item in PackingItemMeasures) {
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| 271 | // itemMeasures[i] = item.ToArray();
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| 272 | // i++;
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| 273 | // }
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| 274 | // result.ItemMeasures = itemMeasures;
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| 275 | // return result;
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[9348] | 276 |
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[13605] | 277 | throw new NotImplementedException();
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[9348] | 278 | }
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| 279 | #endregion
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| 280 | }
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| 281 | }
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