Mercurial > dive4elements > river
view flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/WaterlevelFacet.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 | de6e2b933f33 |
children | d65cf8e40230 |
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package de.intevation.flys.artifacts.model; import de.intevation.artifactdatabase.state.Facet; import de.intevation.artifacts.Artifact; import de.intevation.artifacts.CallContext; import de.intevation.flys.artifacts.FLYSArtifact; import de.intevation.flys.artifacts.math.Linear; import de.intevation.flys.artifacts.states.DefaultState.ComputeType; import org.apache.log4j.Logger; /** * Facet of a Waterlevel (WQKms). */ public class WaterlevelFacet extends DataFacet { private static Logger logger = Logger.getLogger(WaterlevelFacet.class); public WaterlevelFacet(int index, String name, String description) { super(index, name, description, ComputeType.ADVANCE, null, null); } public WaterlevelFacet( int index, String name, String description, ComputeType type, String stateID, String hash ) { super(index, name, description, type, hash, stateID); } public WaterlevelFacet() { } protected WQKms [] getWQKms(CalculationResult res) { return (WQKms [])res.getData(); } /** * Get waterlevel data. * @return a WQKms at given index. */ @Override public Object getData(Artifact artifact, CallContext context) { if (logger.isDebugEnabled()) { logger.debug("Get data for waterlevels at index: " + index + " /stateId: " + stateId); } if (artifact == null) { logger.error("WaterlevelFacet.getData: artifact is null"); return null; } FLYSArtifact winfo = (FLYSArtifact) artifact; CalculationResult res = (CalculationResult) winfo.compute(context, hash, stateId, type, false); if (res == null) { logger.error("WaterlevelFacet.getData: null result"); return null; } WQKms [] wqkms = getWQKms(res); Object KM = context.getContextValue("currentKm"); if (KM != null) { logger.debug("interpolate at given km"); // TODO handle exact match. WQKms wqkmsI = wqkms[index]; double km = (Double)KM; // TODO employ DataUtils interface to TDoubleArraList int size = wqkmsI.size(); boolean kmIncreasing = wqkmsI.getKm(0) < wqkmsI.getKm(size-1); int mod = kmIncreasing ? +1 : -1; int idx = 0; if (!kmIncreasing) { while (idx < size && wqkmsI.getKm(idx) < km) { idx++; } } else { idx = size-1; while (idx > 0 && wqkmsI.getKm(idx) > km) { idx--; } } WQKms resultWQKms = new WQKms(); if ((idx != -1) && (idx < size) && (idx - mod != -1) && (idx - mod < size)) { double inW = Linear.linear( km, wqkmsI.getKm(idx), wqkmsI.getKm(idx - mod), wqkmsI.getW(idx), wqkmsI.getW(idx - mod)); double inQ = Linear.linear( km, wqkmsI.getKm(idx), wqkmsI.getKm(idx - mod), wqkmsI.getQ(idx), wqkmsI.getQ(idx - mod)); resultWQKms.add(inW, inQ, km); } return resultWQKms; } return wqkms != null ? wqkms[index] : null; } /** Copy deeply. */ @Override public Facet deepCopy() { WaterlevelFacet copy = new WaterlevelFacet(); copy.set(this); copy.type = type; copy.hash = hash; copy.stateId = stateId; return copy; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :