Mercurial > dive4elements > gnv-client
comparison 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> |
|---|---|
| date | Wed, 09 Jun 2010 07:29:55 +0000 |
| parents | |
| children | f953c9a559d8 |
comparison
equal
deleted
inserted
replaced
| 1077:1728aac87717 | 1078:5659b5c5e4b5 |
|---|---|
| 1 package de.intevation.gnv.statistics; | |
| 2 | |
| 3 import com.vividsolutions.jts.geom.Point; | |
| 4 import com.vividsolutions.jts.io.ParseException; | |
| 5 import com.vividsolutions.jts.io.WKTReader; | |
| 6 | |
| 7 import de.intevation.gnv.geobackend.base.Result; | |
| 8 import de.intevation.gnv.geobackend.base.ResultDescriptor; | |
| 9 | |
| 10 import de.intevation.gnv.utils.DistanceCalculator; | |
| 11 | |
| 12 import java.sql.SQLException; | |
| 13 | |
| 14 import org.apache.log4j.Logger; | |
| 15 | |
| 16 /** | |
| 17 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
| 18 */ | |
| 19 public class HorizontalProfileVectorStatistics | |
| 20 extends VectorStatistics | |
| 21 { | |
| 22 | |
| 23 private static Logger logger = | |
| 24 Logger.getLogger(HorizontalProfileVectorStatistics.class); | |
| 25 | |
| 26 private WKTReader wktReader = new WKTReader(); | |
| 27 | |
| 28 private double distance; | |
| 29 | |
| 30 | |
| 31 public HorizontalProfileVectorStatistics() { | |
| 32 distance = 0; | |
| 33 } | |
| 34 | |
| 35 | |
| 36 protected void clear() { | |
| 37 distance = 0; | |
| 38 } | |
| 39 | |
| 40 | |
| 41 protected int getValueIdx(ResultDescriptor rd) { | |
| 42 return rd.getColumnIndex("YORDINATE"); | |
| 43 } | |
| 44 | |
| 45 | |
| 46 protected double calculateXOrdinateValue(Result prev, Result row) | |
| 47 throws SQLException | |
| 48 { | |
| 49 try { | |
| 50 Point start = (Point) wktReader.read(prev.getString("SHAPE")); | |
| 51 Point current = (Point) wktReader.read(row.getString("SHAPE")); | |
| 52 | |
| 53 double delta = DistanceCalculator.calculateDistance(start, current); | |
| 54 | |
| 55 distance = !Double.isNaN(delta) ? distance + delta : distance; | |
| 56 } | |
| 57 catch (ParseException e) { | |
| 58 logger.error(e,e); | |
| 59 } | |
| 60 return distance; | |
| 61 } | |
| 62 } | |
| 63 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |