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source: branches/HeuristicLab.BinPacking/HeuristicLab.Problems.BinPacking.2D/3.3/ExtremePointPermutationDecoder.cs @ 14147

Last change on this file since 14147 was 14147, checked in by gkronber, 8 years ago

#1966: finished implementation of 2d bin packing problem using permutation encoding

File size: 2.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2015 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 HeuristicLab.Core;
23using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
24using HeuristicLab.Common;
25using System.Collections.Generic;
26using HeuristicLab.Encodings.PermutationEncoding;
27
28namespace HeuristicLab.Problems.BinPacking2D {
29  [Item("Extreme-point Permutation Decoder (2d)", "Decodes the permutation and creates a packing solution candidate")]
30  [StorableClass]
31  public class ExtremePointPermutationDecoder : Item, IPermutationDecoder {
32
33    [StorableConstructor]
34    protected ExtremePointPermutationDecoder(bool deserializing) : base(deserializing) { }
35    protected ExtremePointPermutationDecoder(ExtremePointPermutationDecoder original, Cloner cloner)
36      : base(original, cloner) {
37    }
38    public ExtremePointPermutationDecoder() : base() { }
39    public override IDeepCloneable Clone(Cloner cloner) {
40      return new ExtremePointPermutationDecoder(this, cloner);
41    }
42
43    public Solution Decode(Permutation permutation, PackingShape binShape, IList<PackingItem> items) {
44      Solution result = new Solution(binShape, true, false);
45      IList<int> remainingIDs = new List<int>(permutation);
46      while (remainingIDs.Count > 0) {
47        var bp = result.NewBinPacking();
48        bp.ExtremePointBasedPacking(ref remainingIDs, items, stackingConstraints: false);
49        result.BinPackings.Add(bp);
50      }
51      result.UpdateBinPackings();
52      return result;
53    }
54  }
55}
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