[14162] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[15617] | 3 | * Copyright (C) 2002-2018 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[14162] | 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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| 22 | using System;
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| 23 | using System.Collections.Generic;
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| 24 | using System.Diagnostics.Contracts;
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| 25 | using System.IO;
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| 26 | using System.Linq;
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[15454] | 27 | using System.Reflection;
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[15418] | 28 | using HeuristicLab.Common;
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[14162] | 29 | using HeuristicLab.Core;
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| 30 | using HeuristicLab.Problems.Instances;
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| 31 | using HeuristicLab.Random;
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[15454] | 32 | using HeuristicLab.Problems.BinPacking.Random;
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[14162] | 33 |
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[15454] | 34 | namespace HeuristicLab.Problems.BinPacking3D.Instances {
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[14162] | 35 | // make sure that for each class we have a separate entry in the problem instance providers
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[15454] | 36 |
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[14162] | 37 | public class RandomInstanceClass1Provider : RandomInstanceProvider {
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[15454] | 38 | public RandomInstanceClass1Provider() : base(new SRand48()) { @class = 1; binWidth = binHeight = binDepth = 100; }
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| 39 |
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[14162] | 40 | }
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[15454] | 41 |
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[14162] | 42 | public class RandomInstanceClass2Provider : RandomInstanceProvider {
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[15454] | 43 | public RandomInstanceClass2Provider() : base(new SRand48()) { @class = 2; binWidth = binHeight = binDepth = 100; }
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| 44 |
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[14162] | 45 | }
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| 46 | public class RandomInstanceClass3Provider : RandomInstanceProvider {
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[15454] | 47 | public RandomInstanceClass3Provider() : base(new SRand48()) { @class = 3; binWidth = binHeight = binDepth = 100; }
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| 48 |
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[14162] | 49 | }
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| 50 | public class RandomInstanceClass4Provider : RandomInstanceProvider {
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[15454] | 51 | public RandomInstanceClass4Provider() : base(new SRand48()) { @class = 4; binWidth = binHeight = binDepth = 100; }
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| 52 |
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[14162] | 53 | }
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| 54 | public class RandomInstanceClass5Provider : RandomInstanceProvider {
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[15454] | 55 | public RandomInstanceClass5Provider() : base(new SRand48()) { @class = 5; binWidth = binHeight = binDepth = 100; }
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| 56 |
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[14162] | 57 | }
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| 58 |
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| 59 | public class RandomInstanceClass6Provider : RandomInstanceProvider {
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[15454] | 60 | public RandomInstanceClass6Provider() : base(new SRand48()) {
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[14162] | 61 | @class = 6;
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| 62 | binWidth = binHeight = binDepth = 10;
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| 63 | }
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| 64 | protected override void SampleItemParameters(IRandom rand, out int w, out int h, out int d) {
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[15454] | 65 | w = rand.Next(1, 10);
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| 66 | h = rand.Next(1, 10);
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| 67 | d = rand.Next(1, 10);
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[14162] | 68 | }
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| 69 | }
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| 70 | public class RandomInstanceClass7Provider : RandomInstanceProvider {
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[15454] | 71 | public RandomInstanceClass7Provider() : base(new SRand48()) {
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[14162] | 72 | @class = 7;
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| 73 | binWidth = binHeight = binDepth = 40;
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| 74 | }
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| 75 | protected override void SampleItemParameters(IRandom rand, out int w, out int h, out int d) {
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[15454] | 76 | w = rand.Next(1, 35);
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| 77 | h = rand.Next(1, 35);
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| 78 | d = rand.Next(1, 35);
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[14162] | 79 | }
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| 80 | }
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| 81 | public class RandomInstanceClass8Provider : RandomInstanceProvider {
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[15454] | 82 | public RandomInstanceClass8Provider() : base(new SRand48()) {
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[14162] | 83 | @class = 8;
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| 84 | binWidth = binHeight = binDepth = 100;
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| 85 | }
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| 86 | protected override void SampleItemParameters(IRandom rand, out int w, out int h, out int d) {
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[15454] | 87 | w = rand.Next(1, 100);
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| 88 | h = rand.Next(1, 100);
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| 89 | d = rand.Next(1, 100);
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[14162] | 90 | }
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| 91 | }
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| 92 |
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| 93 | // class 9 from the paper (all-fill) is not implemented
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[15418] | 94 |
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| 95 |
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[14162] | 96 | public abstract class RandomInstanceProvider : ProblemInstanceProvider<BPPData>, IProblemInstanceProvider<BPPData> {
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| 97 |
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[15454] | 98 | /// <summary>
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| 99 | /// Number of created test items. This items are used for packing them into the bin
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| 100 | /// </summary>
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| 101 | private readonly int[] _numberOfGeneratedTestItems = new int[] { 10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100, 150, 200 };
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[15418] | 102 |
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[15454] | 103 | /// <summary>
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| 104 | /// Number of instance for which should be created for each instance
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| 105 | /// </summary>
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| 106 | private readonly int _numberOfGeneratedInstances;
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[15418] | 107 |
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[15454] | 108 | /// <summary>
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| 109 | /// Random generator for creating random packing items.
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| 110 | /// </summary>
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| 111 | private readonly IRandom _randomGenerator;
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| 112 |
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| 113 |
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[14162] | 114 | protected int @class;
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| 115 | protected int binWidth, binHeight, binDepth;
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| 116 |
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[15454] | 117 | #region Common information for displaying on the ui
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| 118 |
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[14162] | 119 | public override string Name {
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| 120 | get { return string.Format("Martello, Pisinger, Vigo (class={0})", @class); }
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| 121 | }
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| 122 |
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| 123 | public override string Description {
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| 124 | get { return "Randomly generated 3d bin packing problems as described in Martello, Pisinger, Vigo: 'The Three-Dimensional Bin Packing Problem', Operations Research Vol 48, Issue 2, 2000, pp. 256-267."; }
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| 125 | }
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| 126 |
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| 127 | public override Uri WebLink {
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| 128 | get { return null; }
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| 129 | }
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| 130 |
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| 131 | public override string ReferencePublication {
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| 132 | get { return "Martello, Pisinger, Vigo: 'The Three-Dimensional Bin Packing Problem', Operations Research Vol 48, Issue 2, 2000, pp. 256-267."; }
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| 133 | }
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| 134 |
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[15454] | 135 | #endregion
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[14162] | 136 |
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[15454] | 137 |
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| 138 | public RandomInstanceProvider(IRandom randomGenerator, int numberOfGeneratedInstances = 10, int[] numberOfGeneratedTestItems = null) : base() {
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| 139 | _numberOfGeneratedInstances = numberOfGeneratedInstances;
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| 140 | if (numberOfGeneratedTestItems != null) {
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| 141 | _numberOfGeneratedTestItems = numberOfGeneratedTestItems;
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| 142 | }
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| 143 | _randomGenerator = randomGenerator;
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| 144 | }
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| 145 |
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| 146 |
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| 147 | /// <summary>
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| 148 | /// Returns a collection of data descriptors. Each descriptor contains the seed for the random generator.
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| 149 | /// </summary>
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| 150 | /// <returns></returns>
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[14162] | 151 | public override IEnumerable<IDataDescriptor> GetDataDescriptors() {
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| 152 | // 10 classes
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[15454] | 153 | foreach (int numItems in _numberOfGeneratedTestItems) {
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| 154 | for (int instance = 1; instance <= _numberOfGeneratedInstances; instance++) {
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[14162] | 155 | string name = string.Format("n={0}-id={1:00} (class={2})", numItems, instance, @class);
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[15454] | 156 | /* As in the test programm of Silvano Martello, David Pisinger, Daniele Vigo given,
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| 157 | * the seed of the instance provider will be calculated by adding the number of generated items and teh instance number.
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| 158 | * This guarantees that the instances will always be the same
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| 159 | */
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| 160 | yield return new RandomDataDescriptor(name, name, numItems, @class, seed: numItems + instance);
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[14162] | 161 | }
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| 162 | }
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| 163 | }
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| 164 |
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[15473] | 165 | /// <summary>
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| 166 | /// Loads the data from the given data descriptor.
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| 167 | /// It retuns a bin packing problem data instance with the data of the random instance provider.
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| 168 | /// </summary>
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| 169 | /// <param name="dd"></param>
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| 170 | /// <returns></returns>
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[14162] | 171 | public override BPPData LoadData(IDataDescriptor dd) {
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| 172 | var randDd = dd as RandomDataDescriptor;
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[15454] | 173 | if (randDd == null) {
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[15418] | 174 | throw new NotSupportedException("Cannot load data descriptor " + dd);
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[15454] | 175 | }
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[14162] | 176 |
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| 177 | var data = new BPPData() {
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| 178 | BinShape = new PackingShape(binWidth, binHeight, binDepth),
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| 179 | Items = new PackingItem[randDd.NumItems]
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| 180 | };
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[15454] | 181 | _randomGenerator.Reset(randDd.Seed);
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[14162] | 182 | for (int i = 0; i < randDd.NumItems; i++) {
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| 183 | int w, h, d;
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[15454] | 184 | SampleItemParameters(_randomGenerator, out w, out h, out d);
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[14162] | 185 | data.Items[i] = new PackingItem(w, h, d, data.BinShape);
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| 186 | }
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| 187 | return data;
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| 188 | }
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| 189 |
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[15454] | 190 |
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| 191 | /// <summary>
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| 192 | /// Generates the dimensions for a item by using the given random generator
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| 193 | /// </summary>
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| 194 | /// <param name="rand">Given random generator</param>
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| 195 | /// <param name="w">Calculated width of the item</param>
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| 196 | /// <param name="h">Calculated height of the item</param>
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| 197 | /// <param name="d">Calculated depth of the item</param>
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[14162] | 198 | protected virtual void SampleItemParameters(IRandom rand, out int w, out int h, out int d) {
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| 199 | Contract.Assert(@class >= 1 && @class <= 5);
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[15454] | 200 | /*var weights = new double[] { 0.1, 0.1, 0.1, 0.1, 0.1 };
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[14162] | 201 | weights[@class - 1] = 0.6;
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| 202 | var type = Enumerable.Range(1, 5).SampleProportional(rand, 1, weights).First();
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[15454] | 203 | */
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[14162] | 204 |
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[15454] | 205 | // as by Martello and Vigo
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| 206 | int type = @class;
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| 207 | if (type <= 5) {
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| 208 | var t = rand.Next(1, 10);
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| 209 | if (t <= 5) {
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| 210 | type = t;
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| 211 | }
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| 212 | }
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[14162] | 213 |
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| 214 | switch (type) {
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[15454] | 215 | case 1:
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| 216 | CreateInstanceDimensionsType1(rand, out w, out h, out d);
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| 217 | break;
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| 218 | case 2:
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| 219 | CreateInstanceDimensionsType2(rand, out w, out h, out d);
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| 220 | break;
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| 221 | case 3:
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| 222 | CreateInstanceDimensionsType3(rand, out w, out h, out d);
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| 223 | break;
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| 224 | case 4:
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| 225 | CreateInstanceDimensionsType4(rand, out w, out h, out d);
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| 226 | break;
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| 227 | case 5:
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| 228 | CreateInstanceDimensionsType5(rand, out w, out h, out d);
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| 229 | break;
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| 230 | default:
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| 231 | throw new InvalidProgramException();
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[14162] | 232 | }
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| 233 | }
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| 234 |
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[15454] | 235 |
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| 236 | #region Instance dimensions generators for type 1 - 5
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| 237 | private void CreateInstanceDimensionsType1(IRandom rand, out int w, out int h, out int d) {
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| 238 | w = rand.Next(1, binWidth / 2);
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| 239 | h = rand.Next((binHeight * 2) / 3, binHeight);
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| 240 | d = rand.Next((binDepth * 2) / 3, binDepth);
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| 241 | }
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| 242 |
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| 243 | private void CreateInstanceDimensionsType2(IRandom rand, out int w, out int h, out int d) {
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| 244 | w = rand.Next(((binWidth * 2) / 3), binWidth);
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| 245 | h = rand.Next(1, binHeight / 2);
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| 246 | d = rand.Next(((binDepth * 2) / 3), binDepth);
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| 247 | }
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| 248 |
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| 249 | private void CreateInstanceDimensionsType3(IRandom rand, out int w, out int h, out int d) {
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| 250 | w = rand.Next(((binWidth * 2) / 3), binWidth);
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| 251 | h = rand.Next(((binHeight * 2) / 3), binHeight);
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| 252 | d = rand.Next(1, binDepth / 2);
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| 253 | }
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| 254 | private void CreateInstanceDimensionsType4(IRandom rand, out int w, out int h, out int d) {
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| 255 | w = rand.Next(binWidth / 2, binWidth);
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| 256 | h = rand.Next(binHeight / 2, binHeight);
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| 257 | d = rand.Next(binDepth / 2, binDepth);
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| 258 | }
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| 259 | private void CreateInstanceDimensionsType5(IRandom rand, out int w, out int h, out int d) {
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| 260 | w = rand.Next(1, binWidth / 2);
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| 261 | h = rand.Next(1, binHeight / 2);
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| 262 | d = rand.Next(1, binDepth / 2);
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| 263 | }
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| 264 |
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| 265 | #endregion
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| 266 |
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| 267 |
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| 268 |
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[14162] | 269 | public override bool CanImportData {
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| 270 | get { return false; }
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| 271 | }
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| 272 | public override BPPData ImportData(string path) {
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| 273 | throw new NotSupportedException();
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| 274 | }
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| 275 |
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| 276 | public override bool CanExportData {
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| 277 | get { return true; }
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| 278 | }
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| 279 |
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| 280 | public override void ExportData(BPPData instance, string file) {
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| 281 | using (Stream stream = new FileStream(file, FileMode.OpenOrCreate, FileAccess.Write)) {
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| 282 | Export(instance, stream);
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| 283 | }
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| 284 | }
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| 285 | public static void Export(BPPData instance, Stream stream) {
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| 286 |
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| 287 | using (var writer = new StreamWriter(stream)) {
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| 288 | writer.WriteLine(String.Format("{0,-5} {1,-5} {2,-5} WBIN,HBIN,DBIN", instance.BinShape.Width, instance.BinShape.Height, instance.BinShape.Depth));
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| 289 | for (int i = 0; i < instance.NumItems; i++) {
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| 290 | if (i == 0)
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| 291 | writer.WriteLine("{0,-5} {1,-5} {2,-5} W(I),H(I),D(I),I=1,...,N", instance.Items[i].Width, instance.Items[i].Height, instance.Items[i].Depth);
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| 292 | else
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| 293 | writer.WriteLine("{0,-5} {1,-5} {2,-5}", instance.Items[i].Width, instance.Items[i].Height, instance.Items[i].Depth);
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| 294 | }
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| 295 | writer.Flush();
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| 296 | }
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| 297 | }
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| 298 | }
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| 299 | }
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