Mercurial > dive4elements > gnv-client
view gnv-artifacts/src/main/java/de/intevation/gnv/statistics/HorizontalProfileVectorStatistics.java @ 1081:846b2b70b2e0
Implemented histogram creation for vectorial timeseries.
gnv-artifacts/trunk@1183 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 09 Jun 2010 09:51:05 +0000 |
parents | 5659b5c5e4b5 |
children | f953c9a559d8 |
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package de.intevation.gnv.statistics; import com.vividsolutions.jts.geom.Point; import com.vividsolutions.jts.io.ParseException; import com.vividsolutions.jts.io.WKTReader; import de.intevation.gnv.geobackend.base.Result; import de.intevation.gnv.geobackend.base.ResultDescriptor; import de.intevation.gnv.utils.DistanceCalculator; import java.sql.SQLException; import org.apache.log4j.Logger; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class HorizontalProfileVectorStatistics extends VectorStatistics { private static Logger logger = Logger.getLogger(HorizontalProfileVectorStatistics.class); private WKTReader wktReader = new WKTReader(); private double distance; public HorizontalProfileVectorStatistics() { distance = 0; } protected void clear() { distance = 0; } protected int getValueIdx(ResultDescriptor rd) { return rd.getColumnIndex("YORDINATE"); } protected double calculateXOrdinateValue(Result prev, Result row) throws SQLException { try { Point start = (Point) wktReader.read(prev.getString("SHAPE")); Point current = (Point) wktReader.read(row.getString("SHAPE")); double delta = DistanceCalculator.calculateDistance(start, current); distance = !Double.isNaN(delta) ? distance + delta : distance; } catch (ParseException e) { logger.error(e,e); } return distance; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :