Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/statistics/HorizontalProfileVectorStatistics.java @ 1115:f953c9a559d8

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Added license file and license headers. gnv-artifacts/trunk@1260 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 02 Nov 2010 17:46:55 +0000
parents 5659b5c5e4b5
children
rev   line source
1115
f953c9a559d8 Added license file and license headers.
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
1078
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9 package de.intevation.gnv.statistics;
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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.geobackend.base.ResultDescriptor;
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17
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18 import de.intevation.gnv.utils.DistanceCalculator;
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19
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20 import java.sql.SQLException;
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21
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22 import org.apache.log4j.Logger;
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23
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24 /**
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25 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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26 */
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27 public class HorizontalProfileVectorStatistics
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28 extends VectorStatistics
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29 {
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30
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31 private static Logger logger =
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32 Logger.getLogger(HorizontalProfileVectorStatistics.class);
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33
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34 private WKTReader wktReader = new WKTReader();
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35
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36 private double distance;
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37
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38
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39 public HorizontalProfileVectorStatistics() {
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40 distance = 0;
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41 }
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42
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43
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44 protected void clear() {
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45 distance = 0;
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46 }
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47
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48
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49 protected int getValueIdx(ResultDescriptor rd) {
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50 return rd.getColumnIndex("YORDINATE");
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51 }
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52
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53
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54 protected double calculateXOrdinateValue(Result prev, Result row)
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55 throws SQLException
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56 {
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57 try {
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58 Point start = (Point) wktReader.read(prev.getString("SHAPE"));
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59 Point current = (Point) wktReader.read(row.getString("SHAPE"));
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60
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61 double delta = DistanceCalculator.calculateDistance(start, current);
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62
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63 distance = !Double.isNaN(delta) ? distance + delta : distance;
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64 }
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65 catch (ParseException e) {
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66 logger.error(e,e);
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67 }
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68 return distance;
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69 }
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70 }
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71 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org