Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/FastCrossSectionChunk.java @ 4241:49cb65d5932d
Improved the historical discharge calculation.
The calculation now creates new HistoricalWQKms (new subclass of WQKms). Those WQKms are used
to create new facets from (new) type 'HistoricalDischargeCurveFacet'. The chart generator is
improved to support those facets.
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 24 Oct 2012 14:34:35 +0200 |
parents | 5642a83420f2 |
children |
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package de.intevation.flys.artifacts.model; import java.util.List; import java.util.Collections; import java.io.Serializable; import de.intevation.flys.model.CrossSection; import de.intevation.flys.model.FastCrossSectionLine; import org.apache.log4j.Logger; public class FastCrossSectionChunk implements Serializable { private static Logger log = Logger.getLogger(FastCrossSectionChunk.class); public static final String PREFIX = "FCSC:"; public static final double KM_RANGE = 1.0; protected double startKm; protected int crossSectionId; protected List<FastCrossSectionLine> crossSectionLines; public FastCrossSectionChunk() { } public FastCrossSectionChunk(CrossSection cs, double km) { crossSectionId = cs.getId(); startKm = Math.floor(km); double stopKm = startKm + KM_RANGE; long startTime = System.currentTimeMillis(); crossSectionLines = cs.getFastLines(startKm, stopKm); long stopTime = System.currentTimeMillis(); if (log.isDebugEnabled()) { log.debug("Fetching cross section lines took " + (float)(stopTime-startTime)/1000f + " secs."); } } public FastCrossSectionLine getCrossSectionLine(double km) { FastCrossSectionLine key = new FastCrossSectionLine(km); int pos = Collections.binarySearch( crossSectionLines, key, FastCrossSectionLine.KM_CMP); return pos < 0 ? null : crossSectionLines.get(pos); } public static String createHashKey(CrossSection cs, double km) { return PREFIX + cs.getId() + ":" + (int)Math.floor(km); } public String getHashKey() { return PREFIX + crossSectionId + ":" + (int)Math.floor(startKm); } public double getStartKm() { return startKm; } public void setStartKm(double startKm) { this.startKm = startKm; } public double getStopKm() { return startKm + KM_RANGE; } public int getCrossSectionId() { return crossSectionId; } public void setCrossSectionId(int crossSectionId) { this.crossSectionId = crossSectionId; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :