Free cookie consent management tool by TermsFeed Policy Generator

source: branches/2520_PersistenceReintegration/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/BinUtilizationEvaluator.cs @ 16559

Last change on this file since 16559 was 16559, checked in by jkarder, 5 years ago

#2520: renamed Fossil to Attic and set version to 1.0.0-pre01

File size: 2.2 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 Joseph Helm and 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.Core;
24using HEAL.Attic;
25using HeuristicLab.Common;
26
27namespace HeuristicLab.Problems.BinPacking3D {
28  // NOTE: same implementation as for 2d problem
29  [Item("Bin-Utilization Evaluator (3d)", "Calculates the overall utilization of bin space.")]
30  [StorableType("D6743552-FF6F-4D9B-AFC2-38FF3D25DEB9")]
31  public class BinUtilizationEvaluator : Item, IEvaluator {
32
33    [StorableConstructor]
34    protected BinUtilizationEvaluator(StorableConstructorFlag _) : base(_) { }
35    protected BinUtilizationEvaluator(BinUtilizationEvaluator original, Cloner cloner)
36      : base(original, cloner) {
37    }
38    public BinUtilizationEvaluator() : base() { }
39    public override IDeepCloneable Clone(Cloner cloner) {
40      return new BinUtilizationEvaluator(this, cloner);
41    }
42
43    #region IEvaluator Members
44    public double Evaluate(Solution solution) {
45      return CalculateBinUtilization(solution);
46    }
47
48
49    public static double CalculateBinUtilization(Solution solution) {
50      int nrOfBins = solution.NrOfBins;
51      double totalUsedSpace = 0;
52      double totalUsableSpace = 0;
53
54      for (int i = 0; i < nrOfBins; i++) {
55        totalUsableSpace += solution.Bins[i].BinShape.Volume;
56        totalUsedSpace += solution.Bins[i].Items.Sum(kvp => kvp.Value.Volume);
57      }
58
59      return totalUsedSpace / totalUsableSpace;
60    }
61
62    #endregion
63  }
64}
Note: See TracBrowser for help on using the repository browser.