1 | using System;
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2 | using System.Diagnostics;
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3 | using System.Linq;
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4 | using HeuristicLab.Analysis.AlgorithmBehavior.Analyzers;
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5 |
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6 | namespace PerformanceTests {
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7 | class Program {
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8 | static void Main(string[] args) {
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9 | TestVolCalc();
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10 | }
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11 |
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12 | public static void TestVolCalc() {
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13 | int dim = 4;
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14 | int size = 20;
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15 | var data = CreateRandomData(size, dim);
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16 | var dataList = data.ToList();
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17 | Stopwatch watch = new Stopwatch();
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18 |
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19 |
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20 | //calculate convex hull
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21 | watch.Start();
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22 | var convexHull = LPHull.Calculate(data);
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23 | watch.Stop();
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24 | Console.WriteLine("Convex hull calculation took : " + watch.Elapsed.TotalSeconds + " seconds.");
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25 |
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26 |
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27 | //calculate volume of convex hull
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28 | watch.Start();
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29 | double volume = ConvexHullMeasures.CalculateVolumeNew(convexHull);
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30 | watch.Stop();
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31 | Console.WriteLine("Volume calculation of convex hull took : " + watch.Elapsed.TotalSeconds + " seconds.");
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32 | Console.WriteLine("Volume of convex hull is: " + volume);
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33 |
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34 |
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35 | //do volume calculation from the whole data set
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36 | watch.Start();
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37 | volume = ConvexHullMeasures.CalculateVolumeNew(dataList);
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38 | watch.Stop();
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39 | Console.WriteLine("Volume calculation of whole data set took : " + watch.Elapsed.TotalSeconds + " seconds.");
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40 | Console.WriteLine("Volume of whole data is: " + volume);
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41 |
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42 |
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43 | //do volume calculation with lrs
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44 | watch.Start();
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45 | volume = LiblrsWrapper.CalculateVolume(dataList);
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46 | watch.Stop();
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47 | Console.WriteLine("Volume calculation of whole data set with lrs took : " + watch.Elapsed.TotalSeconds + " seconds.");
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48 | Console.WriteLine("Volume of whole data with lrs is: " + volume);
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49 | }
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50 |
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51 | private static double[][] CreateRandomData(int n, int m) {
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52 | double[][] result = new double[n][];
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53 | Random rand = new Random();
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54 |
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55 | for (int i = 0; i < n; i++) {
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56 | result[i] = new double[m];
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57 | for (int j = 0; j < m; j++) {
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58 | result[i][j] = (double)rand.Next(1, 60);
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59 | }
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60 | }
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61 | return result;
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62 | }
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63 | }
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64 | }
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