Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/statistics/HorizontalProfileVectorStatistics.java @ 1078:5659b5c5e4b5
Added statistics for vectorial horizontalprofiles.
gnv-artifacts/trunk@1180 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 09 Jun 2010 07:29:55 +0000 |
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children | f953c9a559d8 |
rev | line source |
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1078
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Added statistics for vectorial horizontalprofiles.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 package de.intevation.gnv.statistics; |
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2 |
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3 import com.vividsolutions.jts.geom.Point; |
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4 import com.vividsolutions.jts.io.ParseException; |
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5 import com.vividsolutions.jts.io.WKTReader; |
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6 |
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7 import de.intevation.gnv.geobackend.base.Result; |
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8 import de.intevation.gnv.geobackend.base.ResultDescriptor; |
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9 |
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10 import de.intevation.gnv.utils.DistanceCalculator; |
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11 |
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12 import java.sql.SQLException; |
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13 |
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14 import org.apache.log4j.Logger; |
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15 |
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16 /** |
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17 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> |
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18 */ |
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19 public class HorizontalProfileVectorStatistics |
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20 extends VectorStatistics |
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21 { |
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22 |
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23 private static Logger logger = |
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24 Logger.getLogger(HorizontalProfileVectorStatistics.class); |
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25 |
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26 private WKTReader wktReader = new WKTReader(); |
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27 |
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28 private double distance; |
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29 |
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30 |
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31 public HorizontalProfileVectorStatistics() { |
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32 distance = 0; |
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33 } |
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34 |
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35 |
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36 protected void clear() { |
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37 distance = 0; |
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38 } |
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39 |
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40 |
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41 protected int getValueIdx(ResultDescriptor rd) { |
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42 return rd.getColumnIndex("YORDINATE"); |
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43 } |
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44 |
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45 |
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46 protected double calculateXOrdinateValue(Result prev, Result row) |
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47 throws SQLException |
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48 { |
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49 try { |
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50 Point start = (Point) wktReader.read(prev.getString("SHAPE")); |
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51 Point current = (Point) wktReader.read(row.getString("SHAPE")); |
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52 |
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53 double delta = DistanceCalculator.calculateDistance(start, current); |
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54 |
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55 distance = !Double.isNaN(delta) ? distance + delta : distance; |
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56 } |
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57 catch (ParseException e) { |
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58 logger.error(e,e); |
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59 } |
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60 return distance; |
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61 } |
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62 } |
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63 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |