Last change
on this file since 583 was
583,
checked in by abeham, 16 years ago
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Adding communication framework to branch 3.1 (ticket #278)
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File size:
1.1 KB
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1 | using System;
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2 | using System.Collections.Generic;
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3 | using System.Linq;
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4 | using System.Text;
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5 | using HeuristicLab.Core;
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6 | using HeuristicLab.Data;
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7 |
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8 | namespace HeuristicLab.SimOpt {
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9 | public class Swap2PermutationManipulator : SimOptManipulationOperatorBase {
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10 | public override string Description {
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11 | get { return @"Swap two elements of a permutation or IntArray"; }
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12 | }
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13 |
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14 | public Swap2PermutationManipulator()
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15 | : base() {
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16 | }
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17 |
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18 | protected override void Apply(IScope scope, IRandom random, IItem item) {
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19 | if (item is Permutation.Permutation || item is IntArrayData) {
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20 | IntArrayData data = (item as IntArrayData);
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21 | int x = random.Next(data.Data.Length);
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22 | int y;
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23 | do {
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24 | y = random.Next(data.Data.Length);
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25 | } while (x == y);
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26 |
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27 | int h = data.Data[x];
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28 | data.Data[x] = data.Data[y];
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29 | data.Data[y] = h;
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30 | } else throw new InvalidOperationException("ERROR: Swap2PermutationManipulator does not know how to work with " + ((item != null) ? (item.GetType().ToString()) : ("null")) + " data");
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31 | }
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32 | }
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33 | }
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