Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/statistics/HorizontalProfileStatistics.java @ 593:b248531fa20b

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Added experimental support for extrapolation in "Horizontalschnitte" gnv-artifacts/trunk@648 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 31 Jan 2010 21:50:15 +0000
parents e964a3d8f7bc
children 9a828e5a2390
rev   line source
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1 /**
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2 *
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3 */
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4 package de.intevation.gnv.statistics;
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5
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6 import java.sql.SQLException;
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7 import java.util.Collection;
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9 import org.apache.log4j.Logger;
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10
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11 import com.vividsolutions.jts.geom.Point;
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12 import com.vividsolutions.jts.io.ParseException;
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13 import com.vividsolutions.jts.io.WKTReader;
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14
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15 import de.intevation.gnv.geobackend.base.Result;
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16 import de.intevation.gnv.state.describedata.KeyValueDescibeData;
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17 import de.intevation.gnv.utils.DistanceCalculator;
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18
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19 /**
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20 * @author Tim Englich <tim.englich@intevation.de>
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21 *
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22 */
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23 public class HorizontalProfileStatistics extends TimeseriesStatistics {
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24
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25 private static Logger log = Logger.getLogger(HorizontalProfileStatistics.class);
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26
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27 private WKTReader wktReader = new WKTReader();
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28
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29 private DistanceCalculator dc = new DistanceCalculator();
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30
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31 private double distance = 0;
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32
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33 /**
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34 * Constructor
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35 */
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36 public HorizontalProfileStatistics() {
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37 super();
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38 }
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255
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40 /**
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41 * @see de.intevation.gnv.statistics.TimeseriesStatistics#calculateXOrdinateValue(de.intevation.gnv.geobackend.base.Result, de.intevation.gnv.geobackend.base.Result)
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42 */
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43 @Override
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44 protected double calculateXOrdinateValue(Result previousRow,Result row)
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45 throws SQLException {
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46 try {
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47 Point start = (Point)this.wktReader.read(previousRow.getString("SHAPE"));
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48 Point current = (Point)this.wktReader.read(row.getString("SHAPE"));
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49 double delta = this.dc.calculateDistance(start, current);
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50
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51 if (!Double.isNaN(delta)){
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52 this.distance = this.distance + delta;
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53 }
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54 } catch (ParseException e) {
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55 log.error(e,e);
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56 }
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57 return this.distance;
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58 }
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255
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60 /**
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61 * @see de.intevation.gnv.statistics.TimeseriesStatistics#generateStatisticsName(java.lang.String, java.lang.String, java.lang.String, java.util.Collection, java.util.Collection, java.util.Collection)
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62 */
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63 @Override
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64 protected String generateStatisticsName(
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65 String break1,
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66 String break2,
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67 String break3,
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68 Collection<KeyValueDescibeData> parameters,
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69 Collection<KeyValueDescibeData> measurements,
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70 Collection<KeyValueDescibeData> dates) {
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71 return (this.findValueTitle(parameters, break1)+ " "+
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72 this.findValueTitle(measurements,break2)).trim()+" "+
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73 this.findValueTitle(dates,break3);
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74 }
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75
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76 /**
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77 * @see de.intevation.gnv.statistics.TimeseriesStatistics#clearStatistics()
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78 */
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79 @Override
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80 protected void clearStatistics() {
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81 log.debug("HorizontalProfileStatistics.clearStatistics");
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82 super.clearStatistics();
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83 this.distance = 0;
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84 }
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85
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86 }
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