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source: trunk/sources/HeuristicLab.Problems.VehicleRouting/3.3/VehicleRoutingProblem.cs @ 3947

Last change on this file since 3947 was 3947, checked in by svonolfe, 14 years ago

Fixed some problems in the VRP implementation (#1039)
File size: 20.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2010 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
22using System;
23using System.Collections.Generic;
24using System.Linq;
25using System.Text;
26using HeuristicLab.Core;
27using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
28using HeuristicLab.Optimization;
29using HeuristicLab.Parameters;
30using HeuristicLab.Data;
31using HeuristicLab.Common;
32using System.Drawing;
33using HeuristicLab.Problems.VehicleRouting.Encodings.Alba;
34using HeuristicLab.PluginInfrastructure;
35using HeuristicLab.Encodings.PermutationEncoding;
36
37namespace HeuristicLab.Problems.VehicleRouting {
38  [Item("Vehicle Routing Problem", "Represents a Vehicle Routing Problem.")]
39  [Creatable("Problems")]
40  [StorableClass]
41  public sealed class VehicleRoutingProblem : ParameterizedNamedItem, ISingleObjectiveProblem {
42    public override Image ItemImage {
43      get { return HeuristicLab.Common.Resources.VS2008ImageLibrary.Type; }
44    }
45
46    #region Parameter Properties
47    public ValueParameter<BoolValue> MaximizationParameter {
48      get { return (ValueParameter<BoolValue>)Parameters["Maximization"]; }
49    }
50    IParameter ISingleObjectiveProblem.MaximizationParameter {
51      get { return MaximizationParameter; }
52    }
53    public ValueParameter<DoubleMatrix> CoordinatesParameter {
54      get { return (ValueParameter<DoubleMatrix>)Parameters["Coordinates"]; }
55    }
56    public OptionalValueParameter<DoubleMatrix> DistanceMatrixParameter {
57      get { return (OptionalValueParameter<DoubleMatrix>)Parameters["DistanceMatrix"]; }
58    }
59    public ValueParameter<BoolValue> UseDistanceMatrixParameter {
60      get { return (ValueParameter<BoolValue>)Parameters["UseDistanceMatrix"]; }
61    }
62    public ValueParameter<IntValue> VehiclesParameter {
63      get { return (ValueParameter<IntValue>)Parameters["Vehicles"]; }
64    }
65    public ValueParameter<DoubleValue> CapacityParameter {
66      get { return (ValueParameter<DoubleValue>)Parameters["Capacity"]; }
67    }
68    public ValueParameter<DoubleArray> DemandParameter {
69      get { return (ValueParameter<DoubleArray>)Parameters["Demand"]; }
70    }
71    public ValueParameter<DoubleArray> ReadyTimeParameter {
72      get { return (ValueParameter<DoubleArray>)Parameters["ReadyTime"]; }
73    }
74    public ValueParameter<DoubleArray> DueTimeParameter {
75      get { return (ValueParameter<DoubleArray>)Parameters["DueTime"]; }
76    }
77    public ValueParameter<DoubleArray> ServiceTimeParameter {
78      get { return (ValueParameter<DoubleArray>)Parameters["ServiceTime"]; }
79    }
80    ValueParameter<IVRPCreator> SolutionCreatorParameter {
81      get { return (ValueParameter<IVRPCreator>)Parameters["SolutionCreator"]; }
82    }
83    IParameter IProblem.SolutionCreatorParameter {
84      get { return SolutionCreatorParameter; }
85    }
86    ValueParameter<IVRPEvaluator> EvaluatorParameter {
87      get { return (ValueParameter<IVRPEvaluator>)Parameters["Evaluator"]; }
88    }
89    IParameter IProblem.EvaluatorParameter {
90      get { return EvaluatorParameter; }
91    }
92    public IValueParameter<DoubleValue> FleetUsageFactor {
93      get { return (IValueParameter<DoubleValue>)Parameters["FleetUsageFactor"]; }
94    }
95    public IValueParameter<DoubleValue> TimeFactor {
96      get { return (IValueParameter<DoubleValue>)Parameters["TimeFactor"]; }
97    }
98    public IValueParameter<DoubleValue> DistanceFactor {
99      get { return (IValueParameter<DoubleValue>)Parameters["DistanceFactor"]; }
100    }
101    public IValueParameter<DoubleValue> OverloadPenalty {
102      get { return (IValueParameter<DoubleValue>)Parameters["OverloadPenalty"]; }
103    }
104    public IValueParameter<DoubleValue> TardinessPenalty {
105      get { return (IValueParameter<DoubleValue>)Parameters["TardinessPenalty"]; }
106    }
107    public OptionalValueParameter<DoubleValue> BestKnownQualityParameter {
108      get { return (OptionalValueParameter<DoubleValue>)Parameters["BestKnownQuality"]; }
109    }
110    IParameter ISingleObjectiveProblem.BestKnownQualityParameter {
111      get { return BestKnownQualityParameter; }
112    }
113    #endregion
114
115    #region Properties
116    public DoubleMatrix Coordinates {
117      get { return CoordinatesParameter.Value; }
118      set { CoordinatesParameter.Value = value; }
119    }
120    public DoubleMatrix DistanceMatrix {
121      get { return DistanceMatrixParameter.Value; }
122      set { DistanceMatrixParameter.Value = value; }
123    }
124    public BoolValue UseDistanceMatrix {
125      get { return UseDistanceMatrixParameter.Value; }
126      set { UseDistanceMatrixParameter.Value = value; }
127    }
128    public IntValue Vehicles {
129      get { return VehiclesParameter.Value; }
130      set { VehiclesParameter.Value = value; }
131    }
132    public DoubleValue Capacity {
133      get { return CapacityParameter.Value; }
134      set { CapacityParameter.Value = value; }
135    }
136    public DoubleArray Demand {
137      get { return DemandParameter.Value; }
138      set { DemandParameter.Value = value; }
139    }
140    public DoubleArray ReadyTime {
141      get { return ReadyTimeParameter.Value; }
142      set { ReadyTimeParameter.Value = value; }
143    }
144    public DoubleArray DueTime {
145      get { return DueTimeParameter.Value; }
146      set { DueTimeParameter.Value = value; }
147    }
148    public DoubleArray ServiceTime {
149      get { return ServiceTimeParameter.Value; }
150      set { ServiceTimeParameter.Value = value; }
151    }
152    public DoubleValue BestKnownQuality {
153      get { return BestKnownQualityParameter.Value; }
154      set { BestKnownQualityParameter.Value = value; }
155    }
156    IVRPCreator SolutionCreator {
157      get { return SolutionCreatorParameter.Value; }
158      set { SolutionCreatorParameter.Value = value; }
159    }
160    ISolutionCreator IProblem.SolutionCreator {
161      get { return SolutionCreatorParameter.Value; }
162    }
163    IVRPEvaluator Evaluator {
164      get { return EvaluatorParameter.Value; }
165      set { EvaluatorParameter.Value = value; }
166    }
167    ISingleObjectiveEvaluator ISingleObjectiveProblem.Evaluator {
168      get { return EvaluatorParameter.Value; }
169    }
170    IEvaluator IProblem.Evaluator {
171      get { return EvaluatorParameter.Value; }
172    }
173    private List<IOperator> operators;
174    public IEnumerable<IOperator> Operators {
175      get { return operators; }
176    }
177    private BestVRPSolutionAnalyzer BestVRPSolutionAnalyzer {
178      get { return operators.OfType<BestVRPSolutionAnalyzer>().FirstOrDefault(); }
179    }
180    #endregion
181
182    public VehicleRoutingProblem()
183      : base() {
184      IVRPCreator creator = new AlbaPermutationCreator();
185      IVRPEvaluator evaluator = new VRPEvaluator();
186
187      Parameters.Add(new ValueParameter<BoolValue>("Maximization", "Set to false as the Vehicle Routing Problem is a minimization problem.", new BoolValue(false)));
188      Parameters.Add(new ValueParameter<DoubleMatrix>("Coordinates", "The x- and y-Coordinates of the cities.", new DoubleMatrix()));
189      Parameters.Add(new OptionalValueParameter<DoubleMatrix>("DistanceMatrix", "The matrix which contains the distances between the cities."));
190      Parameters.Add(new ValueParameter<BoolValue>("UseDistanceMatrix", "True if a distance matrix should be calculated and used for evaluation, otherwise false.", new BoolValue(true)));
191      Parameters.Add(new ValueParameter<IntValue>("Vehicles", "The number of vehicles.", new IntValue(0)));
192      Parameters.Add(new ValueParameter<DoubleValue>("Capacity", "The capacity of each vehicle.", new DoubleValue(0)));
193      Parameters.Add(new ValueParameter<DoubleArray>("Demand", "The demand of each customer.", new DoubleArray()));
194      Parameters.Add(new ValueParameter<DoubleArray>("ReadyTime", "The ready time of each customer.", new DoubleArray()));
195      Parameters.Add(new ValueParameter<DoubleArray>("DueTime", "The due time of each customer.", new DoubleArray()));
196      Parameters.Add(new ValueParameter<DoubleArray>("ServiceTime", "The service time of each customer.", new DoubleArray()));
197      Parameters.Add(new OptionalValueParameter<DoubleValue>("BestKnownQuality", "The quality of the best known solution of this VRP instance."));
198      Parameters.Add(new ValueParameter<DoubleValue>("FleetUsageFactor", "The fleet usage factor considered in the evaluation.", new DoubleValue(100)));
199      Parameters.Add(new ValueParameter<DoubleValue>("TimeFactor", "The time factor considered in the evaluation.", new DoubleValue(0)));
200      Parameters.Add(new ValueParameter<DoubleValue>("DistanceFactor", "The distance factor considered in the evaluation.", new DoubleValue(1)));
201      Parameters.Add(new ValueParameter<DoubleValue>("OverloadPenalty", "The overload penalty considered in the evaluation.", new DoubleValue(100)));
202      Parameters.Add(new ValueParameter<DoubleValue>("TardinessPenalty", "The tardiness penalty considered in the evaluation.", new DoubleValue(100)));
203
204      Parameters.Add(new ValueParameter<IVRPCreator>("SolutionCreator", "The operator which should be used to create new VRP solutions.", creator));
205      Parameters.Add(new ValueParameter<IVRPEvaluator>("Evaluator", "The operator which should be used to evaluate VRP solutions.", evaluator));
206
207      creator.VRPSolutionParameter.ActualName = "VRPSolution";
208      evaluator.QualityParameter.ActualName = "VRPQuality";
209      ParameterizeSolutionCreator();
210      ParameterizeEvaluator();
211
212      Initialize();
213    }
214    [StorableConstructor]
215    private VehicleRoutingProblem(bool deserializing) : base() { }
216
217    public override IDeepCloneable Clone(Cloner cloner) {
218      VehicleRoutingProblem clone = (VehicleRoutingProblem)base.Clone(cloner);
219      clone.DistanceMatrixParameter.Value = DistanceMatrixParameter.Value;
220      clone.Initialize();
221      return clone;
222    }
223
224    public void ImportFromSolomon(string solomonFileName) {
225      SolomonParser parser = new SolomonParser(solomonFileName);
226      parser.Parse();
227
228      this.Name = parser.ProblemName;
229
230      Coordinates = new DoubleMatrix(parser.Coordinates);
231      Vehicles.Value = parser.Vehicles;
232      Capacity.Value = parser.Capacity;
233      Demand = new DoubleArray(parser.Demands);
234      ReadyTime = new DoubleArray(parser.Readytimes);
235      DueTime = new DoubleArray(parser.Duetimes);
236      ServiceTime = new DoubleArray(parser.Servicetimes);
237
238      OnReset();
239    }
240
241    #region Events
242    public event EventHandler SolutionCreatorChanged;
243    private void OnSolutionCreatorChanged() {
244      EventHandler handler = SolutionCreatorChanged;
245      if (handler != null) handler(this, EventArgs.Empty);
246    }
247    public event EventHandler EvaluatorChanged;
248    private void OnEvaluatorChanged() {
249      EventHandler handler = EvaluatorChanged;
250      if (handler != null) handler(this, EventArgs.Empty);
251    }
252    public event EventHandler OperatorsChanged;
253    private void OnOperatorsChanged() {
254      EventHandler handler = OperatorsChanged;
255      if (handler != null) handler(this, EventArgs.Empty);
256    }
257    public event EventHandler Reset;
258    private void OnReset() {
259      EventHandler handler = Reset;
260      if (handler != null) handler(this, EventArgs.Empty);
261    }
262    void VehiclesValue_ValueChanged(object sender, EventArgs e) {
263      ParameterizeSolutionCreator();
264    }
265    private void CoordinatesParameter_ValueChanged(object sender, EventArgs e) {
266      Coordinates.ItemChanged += new EventHandler<EventArgs<int, int>>(Coordinates_ItemChanged);
267      Coordinates.Reset += new EventHandler(Coordinates_Reset);
268      ParameterizeSolutionCreator();
269      ClearDistanceMatrix();
270    }
271    private void Coordinates_ItemChanged(object sender, EventArgs<int, int> e) {
272      ClearDistanceMatrix();
273    }
274    private void Coordinates_Reset(object sender, EventArgs e) {
275      ParameterizeSolutionCreator();
276      ClearDistanceMatrix();
277    }
278    private void SolutionCreatorParameter_ValueChanged(object sender, EventArgs e) {
279      ParameterizeSolutionCreator();
280      ParameterizeEvaluator();
281      ParameterizeAnalyzer();
282      ParameterizeOperators();
283      OnSolutionCreatorChanged();
284    }
285    private void SolutionCreator_PermutationParameter_ActualNameChanged(object sender, EventArgs e) {
286      ParameterizeEvaluator();
287      ParameterizeAnalyzer();
288      ParameterizeOperators();
289    }
290    private void EvaluatorParameter_ValueChanged(object sender, EventArgs e) {
291      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
292      ParameterizeEvaluator();
293      UpdateMoveEvaluators();
294      ParameterizeAnalyzer();
295      //UpdateDistanceMatrix();
296      OnEvaluatorChanged();
297    }
298    private void Evaluator_QualityParameter_ActualNameChanged(object sender, EventArgs e) {
299      ParameterizeAnalyzer();
300    }
301    void TranslocationMoveParameter_ActualNameChanged(object sender, EventArgs e) {
302      string name = ((ILookupParameter<TranslocationMove>)sender).ActualName;
303      foreach (IPermutationTranslocationMoveOperator op in Operators.OfType<IPermutationTranslocationMoveOperator>()) {
304        op.TranslocationMoveParameter.ActualName = name;
305      }
306    }
307    #endregion
308
309    #region Helpers
310    [StorableHook(HookType.AfterDeserialization)]
311    private void Initialize() {
312      InitializeOperators();
313      CoordinatesParameter.ValueChanged += new EventHandler(CoordinatesParameter_ValueChanged);
314      Vehicles.ValueChanged += new EventHandler(VehiclesValue_ValueChanged);
315      Coordinates.ItemChanged += new EventHandler<EventArgs<int, int>>(Coordinates_ItemChanged);
316      Coordinates.Reset += new EventHandler(Coordinates_Reset);
317      SolutionCreatorParameter.ValueChanged += new EventHandler(SolutionCreatorParameter_ValueChanged);
318      EvaluatorParameter.ValueChanged += new EventHandler(EvaluatorParameter_ValueChanged);
319      Evaluator.QualityParameter.ActualNameChanged += new EventHandler(Evaluator_QualityParameter_ActualNameChanged);
320    }
321    private void InitializeOperators() {
322      operators = new List<IOperator>();
323      operators.Add(new BestVRPSolutionAnalyzer());
324      ParameterizeAnalyzer();
325      operators.AddRange(ApplicationManager.Manager.GetInstances<IVRPOperator>().Cast<IOperator>());
326      ParameterizeOperators();
327      UpdateMoveEvaluators();
328      InitializeMoveGenerators();
329    }
330    private void InitializeMoveGenerators() {
331      foreach (AlbaTranslocationMoveGenerator op in Operators.OfType<AlbaTranslocationMoveGenerator>()) {
332        if (op is IMoveGenerator) {
333          op.TranslocationMoveParameter.ActualNameChanged += new EventHandler(TranslocationMoveParameter_ActualNameChanged);
334        }
335      }
336
337    }
338    private void UpdateMoveEvaluators() {
339      ParameterizeOperators();
340      OnOperatorsChanged();
341    }
342    private void ParameterizeSolutionCreator() {
343      SolutionCreator.CitiesParameter.Value = new IntValue(Coordinates.Rows - 1);
344      SolutionCreator.VehiclesParameter.ActualName = VehiclesParameter.Name;
345      SolutionCreator.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
346      Evaluator.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
347      Evaluator.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
348      SolutionCreator.CapacityParameter.ActualName = CapacityParameter.Name;
349      SolutionCreator.DemandParameter.ActualName = DemandParameter.Name;
350      SolutionCreator.ReadyTimeParameter.ActualName = ReadyTimeParameter.Name;
351      SolutionCreator.DueTimeParameter.ActualName = DueTimeParameter.Name;
352      SolutionCreator.ServiceTimeParameter.ActualName = ServiceTimeParameter.Name;
353    }
354    private void ParameterizeEvaluator() {
355      Evaluator.VRPSolutionParameter.ActualName = SolutionCreator.VRPSolutionParameter.ActualName;
356      Evaluator.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
357      Evaluator.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
358      Evaluator.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
359      Evaluator.VehiclesParameter.ActualName = VehiclesParameter.Name;
360      Evaluator.CapacityParameter.ActualName = CapacityParameter.Name;
361      Evaluator.DemandParameter.ActualName = DemandParameter.Name;
362      Evaluator.ReadyTimeParameter.ActualName = ReadyTimeParameter.Name;
363      Evaluator.DueTimeParameter.ActualName = DueTimeParameter.Name;
364      Evaluator.ServiceTimeParameter.ActualName = ServiceTimeParameter.Name;
365      Evaluator.FleetUsageFactor.ActualName = FleetUsageFactor.Name;
366      Evaluator.TimeFactor.ActualName = TimeFactor.Name;
367      Evaluator.DistanceFactor.ActualName = DistanceFactor.Name;
368      Evaluator.OverloadPenalty.ActualName = OverloadPenalty.Name;
369      Evaluator.TardinessPenalty.ActualName = TardinessPenalty.Name;
370    }
371    private void ParameterizeAnalyzer() {
372      BestVRPSolutionAnalyzer.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
373      BestVRPSolutionAnalyzer.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
374      BestVRPSolutionAnalyzer.DistanceParameter.ActualName = Evaluator.DistanceParameter.ActualName;
375      BestVRPSolutionAnalyzer.OverloadParameter.ActualName = Evaluator.OverloadParameter.ActualName;
376      BestVRPSolutionAnalyzer.TardinessParameter.ActualName = Evaluator.TardinessParameter.ActualName;
377      BestVRPSolutionAnalyzer.VRPSolutionParameter.ActualName = SolutionCreator.VRPSolutionParameter.ActualName;
378      BestVRPSolutionAnalyzer.ResultsParameter.ActualName = "Results";
379    }
380    private void ParameterizeOperators() {
381      foreach (IVRPMoveOperator op in Operators.OfType<IVRPMoveOperator>()) {
382        op.VRPSolutionParameter.ActualName = SolutionCreator.VRPSolutionParameter.ActualName;
383      }
384      foreach (IVRPMoveEvaluator op in Operators.OfType<IVRPMoveEvaluator>()) {
385        op.CoordinatesParameter.ActualName = CoordinatesParameter.Name;
386        op.DistanceMatrixParameter.ActualName = DistanceMatrixParameter.Name;
387        op.UseDistanceMatrixParameter.ActualName = UseDistanceMatrixParameter.Name;
388        op.QualityParameter.ActualName = Evaluator.QualityParameter.ActualName;
389        op.VRPSolutionParameter.ActualName = SolutionCreator.VRPSolutionParameter.ActualName;
390        op.VehiclesParameter.ActualName = VehiclesParameter.Name;
391        op.CapacityParameter.ActualName = CapacityParameter.Name;
392        op.DemandParameter.ActualName = DemandParameter.Name;
393        op.ReadyTimeParameter.ActualName = ReadyTimeParameter.Name;
394        op.DueTimeParameter.ActualName = DueTimeParameter.Name;
395        op.ServiceTimeParameter.ActualName = ServiceTimeParameter.Name;
396        op.FleetUsageFactor.ActualName = FleetUsageFactor.Name;
397        op.TimeFactor.ActualName = TimeFactor.Name;
398        op.DistanceFactor.ActualName = DistanceFactor.Name;
399        op.OverloadPenalty.ActualName = OverloadPenalty.Name;
400        op.TardinessPenalty.ActualName = TardinessPenalty.Name;
401      }
402      string translocationMove = Operators.OfType<IMoveGenerator>().OfType<IPermutationTranslocationMoveOperator>().First().TranslocationMoveParameter.ActualName;
403      foreach (IPermutationTranslocationMoveOperator op in Operators.OfType<IPermutationTranslocationMoveOperator>())
404        op.TranslocationMoveParameter.ActualName = translocationMove;
405
406      foreach (IVRPCrossover op in Operators.OfType<IVRPCrossover>()) {
407        op.ParentsParameter.ActualName = SolutionCreator.VRPSolutionParameter.ActualName;
408        op.ChildParameter.ActualName = SolutionCreator.VRPSolutionParameter.ActualName;
409      }
410      foreach (IVRPManipulator op in Operators.OfType<IVRPManipulator>()) {
411        op.VRPSolutionParameter.ActualName = SolutionCreator.VRPSolutionParameter.ActualName;
412      }
413    }
414    private void ClearDistanceMatrix() {
415      DistanceMatrixParameter.Value = null;
416    }
417    #endregion
418  }
419}
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