Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/GaugeDischargeCurveFacet.java @ 6152:0587819960c3

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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>
date Sun, 02 Jun 2013 17:52:53 +0200
parents af13ceeba52a
children 20a32dbdbb59
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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Sascha L. Teichmann <teichmann@intevation.de>
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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 java.util.Arrays;
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12 import java.util.Map;
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13
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14 import org.dive4elements.artifacts.Artifact;
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15 import org.dive4elements.artifacts.CallContext;
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16
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17 import org.dive4elements.artifactdatabase.state.DefaultFacet;
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18 import org.dive4elements.artifactdatabase.state.Facet;
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19
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20 import org.dive4elements.river.artifacts.D4EArtifact;
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21
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22 import org.dive4elements.river.model.Gauge;
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23
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24 import org.dive4elements.river.utils.RiverUtils;
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25
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26 import org.apache.log4j.Logger;
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27
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28 /**
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29 * A Facet that returns discharge curve data at a gauge
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30 *
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31 * @author <a href="mailto:bjoern.ricks@intevation.de">Björn Ricks</a>
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32 */
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33 public class GaugeDischargeCurveFacet
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34 extends DefaultFacet
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35 implements FacetTypes
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36 {
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37 private static final Logger log =
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38 Logger.getLogger(GaugeDischargeCurveFacet.class);
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39
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40 public GaugeDischargeCurveFacet(String name, String description) {
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41 super(0, name, description);
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42 }
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43
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44 @Override
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45 public Object getData(Artifact art, CallContext context) {
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46 return getWQKms(art, context);
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47 }
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48
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49 protected WQKms getWQKms(Artifact art, CallContext context) {
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50 if (!(art instanceof D4EArtifact)) {
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51 log.warn("Invalid artifact type");
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52 return null;
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53 }
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54
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55 D4EArtifact flys = (D4EArtifact)art;
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56
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57 String river = flys.getDataAsString("river");
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58
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59 Gauge gauge = RiverUtils.getReferenceGauge(flys);
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60
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61 if (river == null || gauge == null) {
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62 log.warn("Unknown river or gauge");
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63 return null;
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64 }
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65
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66 String name = gauge.getName();
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67
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68 DischargeTables dt = new DischargeTables(river, name);
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69
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70 Map<String, double [][]> map = dt.getValues(
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71 DischargeTables.MASTER_SCALE);
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72
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73 double [][] values = map.get(name);
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74 if (values == null) {
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75 return null;
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76 }
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77 double [] kms = new double[values[0].length];
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78 Arrays.fill(kms, gauge.getStation().doubleValue());
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79 return new WQKms(kms, values[0], values[1], name);
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80 }
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81
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82 @Override
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83 public Facet deepCopy() {
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84 GaugeDischargeCurveFacet copy = new GaugeDischargeCurveFacet(
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85 this.name,
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86 this.description);
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87 copy.set(this);
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88 return copy;
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89 }
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90 }
http://dive4elements.wald.intevation.org