Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/WaterlevelFacet.java @ 8755:30b1ddadf275
(issue1801) Unify reference gauge finding code
The basic way as described in the method comment of the
determineRefGauge method is now used in the WINFOArtifact,
MainValuesService and RiverUtils.getGauge method.
RiverUtils.getGauge previously just returned the first
gauge found. While this is now a behavior change I believe
that it is always more correct then the undeterministic
behavior of the previous implmenentation.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Wed, 24 Jun 2015 14:07:26 +0200 |
parents | e4606eae8ea5 |
children | 5e38e2924c07 |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.model; import org.dive4elements.artifactdatabase.state.Facet; import org.dive4elements.artifacts.Artifact; import org.dive4elements.artifacts.CallContext; import org.dive4elements.river.artifacts.D4EArtifact; import org.dive4elements.river.artifacts.math.Linear; import org.dive4elements.river.artifacts.states.DefaultState.ComputeType; import org.dive4elements.river.artifacts.model.extreme.ExtremeResult; import org.apache.log4j.Logger; /** * Facet of a Waterlevel (WQKms). */ public class WaterlevelFacet extends DataFacet { private static Logger log = 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 ) { // Pretty weird to change order of the two String params // hash and stateID in comparison to parent. Its difficult to fix, now. super(index, name, description, type, hash, stateID); } public WaterlevelFacet() { } protected WQKms [] getWQKms(CalculationResult res) { if (res.getData() instanceof ExtremeResult) return ((ExtremeResult) res.getData()).getWQKms(); else if (res.getData() instanceof WQKms[]) { return (WQKms []) res.getData(); } else { log.error("WaterlevelFacet got wrong data type " + res.getData()); return null; } } /** * Get waterlevel data. * @return a WQKms at given index. */ @Override public Object getData(Artifact artifact, CallContext context) { if (log.isDebugEnabled()) { log.debug("Get data for waterlevels at index: " + index + " /stateId: " + stateId); } if (artifact == null) { log.error("WaterlevelFacet.getData: artifact is null"); return null; } D4EArtifact winfo = (D4EArtifact) artifact; CalculationResult res = (CalculationResult) winfo.compute(context, hash, stateId, type, false); if (res == null) { log.error("WaterlevelFacet.getData: null result"); return null; } WQKms [] wqkms = getWQKms(res); Object KM = context.getContextValue("currentKm"); // Interpolation. if (KM != null) { linearInterpolate(wqkms[index], (Double) KM); } else { log.debug("Do not interpolate."); } return wqkms != null ? wqkms[index] : null; } /** * Linear interpolation of WQKms. * TODO rewrite. * @return [w, q, km] */ public WQKms linearInterpolate(WQKms wqkms, double km) { log.debug("interpolate at given km (" + km + ")"); WQKms resultWQKms = new WQKms(); int size = wqkms.size(); boolean kmIncreasing = wqkms.getKm(0) < wqkms.getKm(size-1); int mod = kmIncreasing ? +1 : -1; int idx = 0; // Move idx to closest from one direction, check for match. if (!kmIncreasing) { while (idx < size && wqkms.getKm(idx) < km) { if (Math.abs(wqkms.getKm(idx) - km) < 0.01d) { resultWQKms.add(wqkms.getW(idx), wqkms.getQ(idx), wqkms.getKm(idx)); return resultWQKms; } idx++; } } else { idx = size-1; while (idx > 0 && wqkms.getKm(idx) > km) { if (Math.abs(wqkms.getKm(idx) - km) < 0.01d) { resultWQKms.add(wqkms.getW(idx), wqkms.getQ(idx), wqkms.getKm(idx)); return resultWQKms; } idx--; } } if (Math.abs(wqkms.getKm(idx) - km) < 0.01d) { resultWQKms.add(wqkms.getW(idx), wqkms.getQ(idx), wqkms.getKm(idx)); return resultWQKms; } if ((idx != -1) && (idx < size) && (idx - mod != -1) && (idx - mod < size)) { double inW = Linear.linear( km, wqkms.getKm(idx), wqkms.getKm(idx - mod), wqkms.getW(idx), wqkms.getW(idx - mod)); double inQ = Linear.linear( km, wqkms.getKm(idx), wqkms.getKm(idx - mod), wqkms.getQ(idx), wqkms.getQ(idx - mod)); resultWQKms.add(inW, inQ, km); } else { log.debug("waterlevelfacet stuff " + idx + " size " + size + " mod: " + mod); } return resultWQKms; } /** 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 :