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source: branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/2D/PermutationEncoding/BottomLeftPermutationDecoder.cs @ 15448

Last change on this file since 15448 was 15230, checked in by abeham, 7 years ago

#2762: integrated bin packing extension into trunk

File size: 2.3 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2016 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("Bottom-left Permutation Decoder (2d)", "Decodes the permutation and creates a packing solution candidate")]
30  [StorableClass]
31  public class BottomLeftPermutationDecoder : Item, IDecoder<Permutation> {
32
33    [StorableConstructor]
34    protected BottomLeftPermutationDecoder(bool deserializing) : base(deserializing) { }
35    protected BottomLeftPermutationDecoder(BottomLeftPermutationDecoder original, Cloner cloner)
36      : base(original, cloner) {
37    }
38    public BottomLeftPermutationDecoder() : base() { }
39    public override IDeepCloneable Clone(Cloner cloner) {
40      return new BottomLeftPermutationDecoder(this, cloner);
41    }
42
43    public Solution Decode(Permutation permutation, PackingShape binShape, IList<PackingItem> items) {
44      Solution result = new Solution(binShape, useExtremePoints: false, stackingConstraints: false);
45      IList<int> remainingIDs = new List<int>(permutation);
46      while (remainingIDs.Count > 0) {
47        var bp = new BinPacking2D(binShape);
48        bp.SlidingBasedPacking(ref remainingIDs, items, stackingConstraints: false);
49        result.Bins.Add(bp);
50      }
51      result.UpdateBinPackings();
52      return result;
53    }
54  }
55}
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