Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/model/Calculation5.java @ 6152:0587819960c3
Waterlevel differences & bed height differences: Add new model LinearInterpolated intented to unify the two very similiar calculations. The focus of the current implementation is correctness and not speed! The fact that the data sets more mostly sorted by station is not exploited. Doing so would improve performance significantly.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Sun, 02 Jun 2013 17:52:53 +0200 |
parents | af13ceeba52a |
children | 0a5239a1e46e |
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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.artifacts.CallContext; import org.dive4elements.artifacts.CallMeta; import org.dive4elements.river.utils.Formatter; import java.text.NumberFormat; import java.util.ArrayList; import java.util.Map; import org.apache.log4j.Logger; public class Calculation5 extends Calculation { private static Logger log = Logger.getLogger(Calculation5.class); protected double startKm; protected double [] endKms; public Calculation5() { } public Calculation5(double startKm, double [] endKms) { this.startKm = startKm; this.endKms = endKms; } public CalculationResult calculate( WstValueTable wst, Map<Double, Double> kms2gaugeDatums, CallContext context ) { ArrayList<WWQQ> results = new ArrayList<WWQQ>(); int numProblems = numProblems(); CallMeta meta = context.getMeta(); for (double endKm: endKms) { double [][] wws = wst.relateWs(startKm, endKm, this); int newNumProblems = numProblems(); if (wws.length == 4) { WWQQ wwqq = new WWQQ( generateName(meta, startKm, endKm), startKm, kms2gaugeDatums.get(startKm), wws[0], wws[1], endKm, kms2gaugeDatums.get(endKm), wws[2], wws[3]); if (newNumProblems > numProblems) { wwqq.removeNaNs(); } results.add(wwqq); } numProblems = newNumProblems; } return new CalculationResult( results.toArray(new WWQQ[results.size()]), this); } protected static String generateName( CallMeta meta, double startKm, double endKm ) { NumberFormat nf = Formatter.getCalculationKm(meta); return "W(km " + nf.format(startKm) + ") ~ W(km " + nf.format(endKm) + ")"; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :