Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/RelativePointFacet.java @ 2749:5eb3edb4f37b

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Add relative-points-fixations for duration curves in dc conf. flys-artifacts/trunk@4484 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 23 May 2012 20:42:29 +0000
parents 94c6f4ad9b98
children b05faaa9099b
rev   line source
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1 package de.intevation.flys.artifacts.model;
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2
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3 import java.util.List;
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4 import java.awt.geom.Point2D;
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5
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6 import org.apache.log4j.Logger;
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7
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8 import de.intevation.artifacts.Artifact;
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9 import de.intevation.artifacts.CallContext;
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10 import de.intevation.artifacts.DataProvider;
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11
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12 import de.intevation.flys.artifacts.StaticWKmsArtifact;
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13 import de.intevation.flys.artifacts.math.Linear;
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14 import de.intevation.flys.artifacts.model.FacetTypes;
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15 import de.intevation.flys.artifacts.model.RelativePointFacet;
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16 import de.intevation.flys.artifacts.model.WQDay;
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17
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18 /**
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19 * Facet to access a point.
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20 */
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21 public class RelativePointFacet
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22 extends BlackboardDataFacet
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23 implements FacetTypes {
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24
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25 private static Logger logger = Logger.getLogger(RelativePointFacet.class);
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26
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27 /** Trivial Constructor. */
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28 public RelativePointFacet(String description) {
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29 this(RELATIVE_POINT, description);
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30 }
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31
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32
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33 public RelativePointFacet(String name, String description) {
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34 this.name = name;
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35 this.description = description;
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36 this.index = 0;
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37 }
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38
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39
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40 /**
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41 * Returns the data this facet requires.
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42 *
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43 * @param artifact the owner artifact.
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44 * @param context the CallContext (ignored).
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45 *
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46 * @return the data.
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47 */
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48 @Override
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49 public Object getData(Artifact artifact, CallContext context) {
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50 // Find out whether we live in a duration curve context, there we would
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51 // provide only a single point.
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52 Object wqdays = null;
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53 double km = 0d;
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54 List<DataProvider> providers = context.
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55 getDataProvider("durationcurve");
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56 if (providers.size() < 1) {
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57 logger.warn("Could not find durationcurve data provider.");
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58 }
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59 else {
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60 wqdays = providers.get(0).provideData(
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61 DurationCurveFacet.BB_DURATIONCURVE,
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62 null,
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63 context);
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64 }
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65 List<DataProvider> kmproviders = context.
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66 getDataProvider(DurationCurveFacet.BB_DURATIONCURVE_KM);
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67 if (kmproviders.size() < 1) {
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68 logger.warn("Could not find durationcurve.km data provider.");
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69 }
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70 else {
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71 logger.debug("Found durationcurve.km data provider.");
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72 String dckm = providers.get(0).provideData(
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73 DurationCurveFacet.BB_DURATIONCURVE_KM,
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74 null,
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75 context).toString();
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76 km = Double.valueOf(dckm);
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77 }
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78
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79 StaticWKmsArtifact staticData =
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80 (StaticWKmsArtifact) artifact;
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81
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82 if (wqdays != null) {
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83 // Which W at this km?
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84 double w = staticData.getWAtKmLin(staticData.getWKms(0), km);
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85 if (w == -1) {
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86 logger.warn("w is -1, already bad sign!");
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87 }
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88 // Where is this W passed by in the wq-curve?
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89 WQDay wqday = (WQDay) wqdays;
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90 // Doing a linear Day Of KM.
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91 int idx = 0;
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92 boolean wIncreases = wqday.getW(0) < wqday.getW(wqday.size()-1);
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93 if (wIncreases) {
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94 while (idx < wqday.size() && wqday.getW(idx) < w) {
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95 idx++;
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96 }
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97 }
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98 else {
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99 idx = wqday.size() -1;
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100 while (idx > 0 && wqday.getW(idx) > w) {
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101 idx--;
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102 }
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103 }
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104
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105 double day = 0d;
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106 int mod = (wIncreases) ? -1 : +1;
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107 if (idx != 0 && idx <= wqday.size()-1) {
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108 day = Linear.linear(w, wqday.getW(idx +mod), wqday.getW(idx),
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109 wqday.getDay(idx+mod), wqday.getDay(idx));
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110 }
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111
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112 return new Point2D.Double((double) day, w);
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113 }
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114 logger.warn("not wqkms / w / day found");
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115
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116 // TODO better signal failure.
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117 return new Point2D.Double(0d, 0d);
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118 }
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119
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120
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121 /**
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122 * Create a deep copy of this Facet.
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123 * @return a deep copy.
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124 */
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125 @Override
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126 public RelativePointFacet deepCopy() {
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127 RelativePointFacet copy = new RelativePointFacet(description);
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128 copy.set(this);
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129 return copy;
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130 }
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131 }
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132 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org