[4230] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2010 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 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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[4722] | 22 | using System.Collections.Generic;
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| 23 | using System.Drawing;
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[4230] | 24 | using HeuristicLab.Common;
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| 25 | using HeuristicLab.Core;
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| 26 | using HeuristicLab.Data;
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| 27 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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[4856] | 28 | using System.Text;
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[4230] | 29 |
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| 30 | namespace HeuristicLab.Problems.VehicleRouting.Encodings.General {
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| 31 | [Item("TourEncoding", "Represents a base class for tour encodings of VRP solutions.")]
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| 32 | [StorableClass]
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| 33 | public abstract class TourEncoding : Item, IVRPEncoding {
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| 34 | public override Image ItemImage {
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| 35 | get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Class; }
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| 36 | }
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[4722] | 37 |
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[4230] | 38 | #region IVRPEncoding Members
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[4268] | 39 | public virtual List<Tour> GetTours(ILookupParameter<DoubleMatrix> distanceMatrix = null, int maxVehicles = int.MaxValue) {
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| 40 | List<Tour> result = new List<Tour>(Tours);
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| 41 |
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| 42 | while (result.Count > maxVehicles) {
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| 43 | Tour tour = result[result.Count - 1];
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| 44 | result[result.Count - 2].Cities.AddRange(tour.Cities);
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| 45 |
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| 46 | result.Remove(tour);
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| 47 | }
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| 48 |
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| 49 | return result;
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[4230] | 50 | }
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| 51 |
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| 52 | public int Cities {
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[4722] | 53 | get {
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[4230] | 54 | int cities = 0;
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| 55 |
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| 56 | foreach (Tour tour in Tours) {
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| 57 | cities += tour.Cities.Count;
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| 58 | }
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| 59 |
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| 60 | return cities;
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| 61 | }
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| 62 | }
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| 63 | #endregion
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| 64 |
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| 65 | [Storable]
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| 66 | public ItemList<Tour> Tours { get; set; }
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| 67 |
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| 68 | public TourEncoding() {
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| 69 | Tours = new ItemList<Tour>();
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[4856] | 70 |
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| 71 | Tours.ToStringChanged += new System.EventHandler(Tours_ToStringChanged);
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[4230] | 72 | }
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| 73 |
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[4856] | 74 | void Tours_ToStringChanged(object sender, System.EventArgs e) {
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| 75 | this.OnToStringChanged();
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| 76 | }
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| 77 |
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[4230] | 78 | [StorableConstructor]
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| 79 | protected TourEncoding(bool serializing)
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| 80 | : base() {
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| 81 | }
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[4722] | 82 | protected TourEncoding(TourEncoding original, Cloner cloner)
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| 83 | : base(original, cloner) {
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| 84 | }
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[4268] | 85 |
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| 86 | public static void ConvertFrom(IVRPEncoding encoding, TourEncoding solution, ILookupParameter<DoubleMatrix> distanceMatrix) {
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| 87 | solution.Tours = new ItemList<Tour>(encoding.GetTours(distanceMatrix));
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[4230] | 88 | }
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| 89 |
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| 90 | public static void ConvertFrom(List<int> route, TourEncoding solution) {
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| 91 | solution.Tours = new ItemList<Tour>();
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[4722] | 92 |
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[4230] | 93 | Tour tour = new Tour();
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| 94 | for (int i = 0; i < route.Count; i++) {
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| 95 | if (route[i] == 0) {
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| 96 | if (tour.Cities.Count > 0) {
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| 97 | solution.Tours.Add(tour);
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| 98 | tour = new Tour();
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| 99 | }
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| 100 | } else {
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| 101 | tour.Cities.Add(route[i]);
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| 102 | }
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| 103 | }
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| 104 | }
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[4856] | 105 |
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| 106 | public override string ToString() {
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| 107 | StringBuilder sb = new StringBuilder();
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| 108 |
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| 109 | foreach (Tour tour in Tours) {
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| 110 | foreach (int city in tour.Cities) {
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| 111 | sb.Append(city);
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| 112 | sb.Append(" ");
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| 113 | }
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| 114 |
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| 115 | sb.AppendLine();
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| 116 | }
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| 117 |
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| 118 | return sb.ToString();
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| 119 | }
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[4230] | 120 | }
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| 121 | }
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