Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/tkhcalculation/WaterlevelValuesFinder.java @ 8946:5d5d482da3e9
Implementing SINFO - FlowDepthMinMax calculation
| author | gernotbelger |
|---|---|
| date | Tue, 13 Mar 2018 18:49:33 +0100 |
| parents | |
| children | 45f1ad66560e |
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| 8945:4a6b6a3c279c | 8946:5d5d482da3e9 |
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| 1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde | |
| 2 * Software engineering by | |
| 3 * Björnsen Beratende Ingenieure GmbH | |
| 4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt | |
| 5 * | |
| 6 * This file is Free Software under the GNU AGPL (>=v3) | |
| 7 * and comes with ABSOLUTELY NO WARRANTY! Check out the | |
| 8 * documentation coming with Dive4Elements River for details. | |
| 9 */ | |
| 10 package org.dive4elements.river.artifacts.sinfo.tkhcalculation; | |
| 11 | |
| 12 import org.apache.commons.math.ArgumentOutsideDomainException; | |
| 13 import org.apache.commons.math.analysis.polynomials.PolynomialSplineFunction; | |
| 14 import org.dive4elements.river.artifacts.model.WKms; | |
| 15 import org.dive4elements.river.utils.DoubleUtil; | |
| 16 | |
| 17 /** | |
| 18 * Abstraction for access to waterlevels by station. | |
| 19 * | |
| 20 * @author Gernot Belger | |
| 21 */ | |
| 22 public class WaterlevelValuesFinder { | |
| 23 | |
| 24 public static WaterlevelValuesFinder fromKms(final WKms wkms) { | |
| 25 return new WaterlevelValuesFinder(wkms); | |
| 26 } | |
| 27 | |
| 28 private final PolynomialSplineFunction wstInterpolator; | |
| 29 | |
| 30 private WaterlevelValuesFinder(final WKms wkms) { | |
| 31 this.wstInterpolator = DoubleUtil.getLinearInterpolator(wkms.allKms(), wkms.allWs()); | |
| 32 } | |
| 33 | |
| 34 public double getWaterlevel(final double km) { | |
| 35 try { | |
| 36 return this.wstInterpolator.value(km); | |
| 37 } | |
| 38 catch (final ArgumentOutsideDomainException e) { | |
| 39 e.printStackTrace(); | |
| 40 return Double.NaN; | |
| 41 } | |
| 42 } | |
| 43 } |