source: branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/TranslocationMoveEvaluator.cs @ 15617

Last change on this file since 15617 was 15617, checked in by rhanghof, 20 months ago

#2817:

  • The items can be rotated and tilted now.
  • Added pruning of extreme points in packed bins.
  • Added new packer which packs items by positioning them on the point with the minimum of wasted space. He uses rotating and tilting of items.
  • Added classes for sorting given items.
File size: 2.5 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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.Common;
23using HeuristicLab.Core;
24using HeuristicLab.Encodings.PermutationEncoding;
25using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
26
27namespace HeuristicLab.Problems.BinPacking3D.Evaluators {
28  [Item("TranslocationMoveEvaluator", "Move evaluator for insertion or translocation moves.")]
29  [StorableClass]
30  public sealed class TranslocationMoveEvaluator : MoveEvaluatorBase<Permutation, TranslocationMove>, IPermutationTranslocationMoveOperator {
31    public ILookupParameter<TranslocationMove> TranslocationMoveParameter {
32      get { return MoveParameter; }
33    }
34    public ILookupParameter<Permutation> PermutationParameter {
35      get { return EncodedSolutionParameter; }
36    }
37    [StorableConstructor]
38    private TranslocationMoveEvaluator(bool deserializing) : base(deserializing) { }
39    private TranslocationMoveEvaluator(TranslocationMoveEvaluator original, Cloner cloner) : base(original, cloner) { }
40    public TranslocationMoveEvaluator()
41      : base() {
42    }
43
44    public override IDeepCloneable Clone(Cloner cloner) {
45      return new TranslocationMoveEvaluator(this, cloner);
46    }
47
48    public override double EvaluateMove(Permutation permutation, TranslocationMove move, PackingShape binShape,
49      ReadOnlyItemList<PackingItem> items, bool useStackingConstraints) {
50
51      // uses full evaluation
52      TranslocationManipulator.Apply(permutation, move.Index1, move.Index2, move.Index3);
53      var solution = DecoderParameter.ActualValue.Decode(permutation, binShape, items, useStackingConstraints);
54
55      return SolutionEvaluatorParameter.ActualValue.Evaluate(solution);
56    }
57  }
58}
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