Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/HistoricalWQTimerange.java @ 6152:0587819960c3
Waterlevel differences & bed height differences: Add new model LinearInterpolated intented to unify the two very similiar calculations. The focus of the current implementation is correctness and not speed! The fact that the data sets more mostly sorted by station is not exploited. Doing so would improve performance significantly.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Sun, 02 Jun 2013 17:52:53 +0200 |
parents | af13ceeba52a |
children | 5e38e2924c07 |
rev | line source |
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.artifacts.model; |
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10 |
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11 import gnu.trove.TDoubleArrayList; |
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12 |
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13 import java.util.ArrayList; |
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14 import java.util.Collections; |
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15 import java.util.List; |
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16 |
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17 |
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18 /** |
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19 * A subclass of WQTimerange that stores besides W, Q and Timerange values |
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20 * another double value (difference to something). |
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21 * |
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22 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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23 */ |
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24 public class HistoricalWQTimerange extends WQTimerange { |
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25 |
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26 public static class HistoricalTimerangeItem extends TimerangeItem { |
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27 public double diff; |
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28 |
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29 public HistoricalTimerangeItem (Timerange timerange, double q, double w, double diff) { |
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30 super(timerange, q, w); |
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31 this.diff = diff; |
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32 } |
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33 |
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34 public double[] get(double[] wq) { |
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35 if (wq.length >= 3) { |
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36 wq[0] = w; |
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37 wq[1] = q; |
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38 wq[2] = diff; |
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39 } |
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40 else if (wq.length >= 2) { |
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41 return super.get(wq); |
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42 } |
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43 |
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44 return wq; |
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45 } |
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46 } |
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47 |
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48 protected TDoubleArrayList diffs; |
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49 |
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50 |
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51 public HistoricalWQTimerange(String name) { |
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52 super(name); |
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53 |
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54 diffs = new TDoubleArrayList(); |
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55 } |
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56 |
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57 |
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58 public void add(double w, double q, double diff, Timerange t) { |
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59 ws.add(w); |
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60 qs.add(q); |
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61 timeranges.add(t); |
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62 diffs.add(diff); |
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63 } |
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64 |
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65 |
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66 /** |
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67 * This method requires a 3dim double array for <i>res</i>! |
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68 */ |
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69 @Override |
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70 public double[] get(int idx, double[] res) { |
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71 res[0] = ws.getQuick(idx); |
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72 res[1] = qs.getQuick(idx); |
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73 res[2] = diffs.getQuick(idx); |
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74 |
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75 return res; |
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76 } |
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77 |
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78 |
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79 public double[] getDiffs() { |
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80 return diffs.toNativeArray(); |
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81 } |
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82 |
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83 @Override |
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84 public List<TimerangeItem> sort() { |
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85 ArrayList<TimerangeItem> items = new ArrayList<TimerangeItem>(timeranges.size()); |
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86 for (int i = 0, n = size(); i < n; i++) { |
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87 items.add(new HistoricalTimerangeItem(getTimerange(i), getQ(i), getW(i), diffs.get(i))); |
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88 } |
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89 |
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90 Collections.sort(items); |
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91 return items; |
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92 } |
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93 } |
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94 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |