Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/CrossSectionWaterLineFacet.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 e4606eae8ea5
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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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 org.apache.log4j.Logger;
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12
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13 import java.util.List;
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14
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15 import org.dive4elements.artifacts.Artifact;
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16 import org.dive4elements.artifacts.CallContext;
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17 import org.dive4elements.artifacts.DataProvider;
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18
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19 import org.dive4elements.artifactdatabase.state.Facet;
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20
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21 import org.dive4elements.river.artifacts.WaterLineArtifact;
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22
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23 import org.dive4elements.river.model.FastCrossSectionLine;
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24
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25 import org.dive4elements.river.artifacts.geom.Lines;
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26
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27
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28 /**
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29 * Facet for Waterlines in Cross Sections.
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30 */
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31 public class CrossSectionWaterLineFacet
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32 extends BlackboardDataFacet
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33 implements FacetTypes {
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34
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35 /** Private logger to use. */
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36 private static Logger logger =
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37 Logger.getLogger(CrossSectionWaterLineFacet.class);
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38
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39
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40 /** Trivial constructor, set (maybe localized) description. */
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41 public CrossSectionWaterLineFacet(int idx, String description) {
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42 super(idx, CROSS_SECTION_WATER_LINE, description);
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43 }
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44
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45
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46 /**
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47 * Trivial constructor, set (maybe localized) description.
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48 * @param idx Index of this facet.
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49 * @param name 'type' of this facet.
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50 * @param description (maybe) localized user-visible description.
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51 */
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52 public CrossSectionWaterLineFacet(int idx, String name, String description) {
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53 super(idx, name, description);
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54 }
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55
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56
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57 /**
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58 * Gets waterline (crossed with cross section) of waterlevel.
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59 */
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60 public Object getData(Artifact artifact, CallContext context) {
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61 logger.debug("Get data for cross section water line");
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62
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63 List<DataProvider> providers = context.
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64 getDataProvider(CrossSectionFacet.BLACKBOARD_CS_MASTER_DATA);
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65 if (providers.size() < 1) {
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66 logger.warn("Could not find Cross-Section data provider.");
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67 return new Lines.LineData(new double[][] {}, 0d, 0d);
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68 }
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69
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70 Object crossSection = providers.get(0)
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71 .provideData(CrossSectionFacet.BLACKBOARD_CS_MASTER_DATA,
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72 null, context);
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73 Object nextKm = providers.get(0).
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74 provideData(CrossSectionFacet.BLACKBOARD_CS_NEXT_KM, null, context);
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75 Object prevKm = providers.get(0).
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76 provideData(CrossSectionFacet.BLACKBOARD_CS_PREV_KM, null, context);
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77 if (prevKm == null)
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78 prevKm = new Double(-1d);
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79 if (nextKm == null)
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80 nextKm = new Double(-1d);
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81
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82 if (!(artifact instanceof WaterLineArtifact)) {
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83 logger.error("CrossSectionWaterLineFacet needs WaterLineArtifact");
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84 return new Lines.LineData(new double[][] {}, 0d,0d);
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85 }
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86 WaterLineArtifact lineArtifact = (WaterLineArtifact) artifact;
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87
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88 if (crossSection != null) {
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89 return lineArtifact.getWaterLines(this.getIndex(),
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90 (FastCrossSectionLine) crossSection, (Double) nextKm,
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91 (Double) prevKm, context);
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92 }
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93 else {
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94 return new Lines.LineData(new double[][] {}, 0d,0d);
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95 }
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96 }
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97
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98
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99 /** Do a deep copy. */
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100 @Override
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101 public Facet deepCopy() {
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102 CrossSectionWaterLineFacet copy = new CrossSectionWaterLineFacet(
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103 this.getIndex(),
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104 this.description);
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105 copy.set(this);
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106 return copy;
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107 }
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108 }
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109 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org