[2805] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[14312] | 3 | * Copyright (C) 2002-2016 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[2805] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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[4722] | 23 | using HeuristicLab.Common;
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[2805] | 24 | using HeuristicLab.Core;
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| 25 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 26 |
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[3158] | 27 | namespace HeuristicLab.Problems.TravelingSalesman {
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[2805] | 28 | /// <summary>
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| 29 | /// An operator which evaluates TSP solutions given in path representation using the rounded Euclidean distance metric.
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| 30 | /// </summary>
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| 31 | [Item("TSPRoundedEuclideanPathEvaluator", "An operator which evaluates TSP solutions given in path representation using the rounded Euclidean distance metric.")]
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[3017] | 32 | [StorableClass]
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[2975] | 33 | public sealed class TSPRoundedEuclideanPathEvaluator : TSPCoordinatesPathEvaluator {
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[4722] | 34 | [StorableConstructor]
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| 35 | private TSPRoundedEuclideanPathEvaluator(bool deserializing) : base(deserializing) { }
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| 36 | private TSPRoundedEuclideanPathEvaluator(TSPRoundedEuclideanPathEvaluator original, Cloner cloner) : base(original, cloner) { }
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| 37 | public TSPRoundedEuclideanPathEvaluator() : base() { }
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| 38 |
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| 39 | public override IDeepCloneable Clone(Cloner cloner) {
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| 40 | return new TSPRoundedEuclideanPathEvaluator(this, cloner);
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| 41 | }
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| 42 |
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[2805] | 43 | /// <summary>
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| 44 | /// Calculates the distance between two points using the rounded Euclidean distance metric.
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| 45 | /// </summary>
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| 46 | /// <param name="x1">The x-coordinate of point 1.</param>
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| 47 | /// <param name="y1">The y-coordinate of point 1.</param>
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| 48 | /// <param name="x2">The x-coordinate of point 2.</param>
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| 49 | /// <param name="y2">The y-coordinate of point 2.</param>
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| 50 | /// <returns>The calculated distance.</returns>
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| 51 | protected override double CalculateDistance(double x1, double y1, double x2, double y2) {
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| 52 | return Math.Round(Math.Sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)));
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| 53 | }
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| 54 | }
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| 55 | }
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