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source: trunk/sources/HeuristicLab.Problems.VehicleRouting/3.4/Analyzer/BestSolution/TimeWindowed/BestTimeWindowedVRPSolutionAnalyzer.cs @ 8497

Last change on this file since 8497 was 8497, checked in by svonolfe, 10 years ago

Fixed behavior of VRP analyzers related to constraint relaxation (#1177)

File size: 5.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2012 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.Linq;
23using HeuristicLab.Common;
24using HeuristicLab.Core;
25using HeuristicLab.Data;
26using HeuristicLab.Operators;
27using HeuristicLab.Optimization;
28using HeuristicLab.Parameters;
29using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
30using HeuristicLab.Problems.VehicleRouting.Interfaces;
31using HeuristicLab.Problems.VehicleRouting.Variants;
32using HeuristicLab.Problems.VehicleRouting.ProblemInstances;
33
34namespace HeuristicLab.Problems.VehicleRouting {
35  /// <summary>
36  /// An operator for analyzing the best solution of Vehicle Routing Problems.
37  /// </summary>
38  [Item("BestTimeWindowedVRPSolutionAnalyzer", "An operator for analyzing the best solution of time windowed Vehicle Routing Problems.")]
39  [StorableClass]
40  public sealed class BestTimeWindowedVRPSolutionAnalyzer : SingleSuccessorOperator, IAnalyzer, ITimeWindowedOperator {
41    public ILookupParameter<IVRPProblemInstance> ProblemInstanceParameter {
42      get { return (ILookupParameter<IVRPProblemInstance>)Parameters["ProblemInstance"]; }
43    }
44    public ScopeTreeLookupParameter<IVRPEncoding> VRPToursParameter {
45      get { return (ScopeTreeLookupParameter<IVRPEncoding>)Parameters["VRPTours"]; }
46    }
47    public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
48      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
49    }
50
51    public ScopeTreeLookupParameter<DoubleValue> TardinessParameter {
52      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Tardiness"]; }
53    }
54    public ScopeTreeLookupParameter<DoubleValue> TravelTimeParameter {
55      get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["TravelTime"]; }
56    }
57
58    public LookupParameter<VRPSolution> BestSolutionParameter {
59      get { return (LookupParameter<VRPSolution>)Parameters["BestSolution"]; }
60    }
61    public ValueLookupParameter<ResultCollection> ResultsParameter {
62      get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
63    }
64
65    public bool EnabledByDefault {
66      get { return true; }
67    }
68
69    [StorableConstructor]
70    private BestTimeWindowedVRPSolutionAnalyzer(bool deserializing) : base(deserializing) { }
71
72    public BestTimeWindowedVRPSolutionAnalyzer()
73      : base() {
74      Parameters.Add(new LookupParameter<IVRPProblemInstance>("ProblemInstance", "The problem instance."));
75      Parameters.Add(new ScopeTreeLookupParameter<IVRPEncoding>("VRPTours", "The VRP tours which should be evaluated."));
76      Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", "The qualities of the VRP solutions which should be analyzed."));
77
78      Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Tardiness", "The tardiness of the VRP solutions which should be analyzed."));
79      Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("TravelTime", "The travel times of the VRP solutions which should be analyzed."));
80
81      Parameters.Add(new LookupParameter<VRPSolution>("BestSolution", "The best VRP solution."));
82      Parameters.Add(new ValueLookupParameter<ResultCollection>("Results", "The result collection where the best VRP solution should be stored."));
83    }
84
85    public override IDeepCloneable Clone(Cloner cloner) {
86      return new BestTimeWindowedVRPSolutionAnalyzer(this, cloner);
87    }
88
89    private BestTimeWindowedVRPSolutionAnalyzer(BestTimeWindowedVRPSolutionAnalyzer original, Cloner cloner)
90      : base(original, cloner) {
91    }
92
93    public override IOperation Apply() {
94      IVRPProblemInstance problemInstance = ProblemInstanceParameter.ActualValue;
95      ItemArray<IVRPEncoding> solutions = VRPToursParameter.ActualValue;
96      ResultCollection results = ResultsParameter.ActualValue;
97
98      ItemArray<DoubleValue> qualities = QualityParameter.ActualValue;
99      ItemArray<DoubleValue> tardinesses = TardinessParameter.ActualValue;
100      ItemArray<DoubleValue> travelTimes = TravelTimeParameter.ActualValue;
101
102      int i = qualities.Select((x, index) => new { index, x.Value }).OrderBy(x => x.Value).First().index;
103
104      VRPSolution solution = BestSolutionParameter.ActualValue;
105      if (solution != null) {
106        if (!results.ContainsKey("Best VRP Solution Tardiness")) {
107          results.Add(new Result("Best VRP Solution Tardiness", new DoubleValue(tardinesses[i].Value)));
108          results.Add(new Result("Best VRP Solution TravelTime", new DoubleValue(travelTimes[i].Value)));
109        } else {
110          VRPEvaluation eval = problemInstance.Evaluate(solution.Solution);
111          if (qualities[i].Value <= eval.Quality) {
112            (results["Best VRP Solution Tardiness"].Value as DoubleValue).Value = tardinesses[i].Value;
113            (results["Best VRP Solution TravelTime"].Value as DoubleValue).Value = travelTimes[i].Value;
114          }
115        }
116      }
117
118      return base.Apply();
119    }
120  }
121}
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