g@9646: /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
g@9646:  * Software engineering by
g@9646:  *  Björnsen Beratende Ingenieure GmbH
g@9646:  *  Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
g@9646:  *
g@9646:  * This file is Free Software under the GNU AGPL (>=v3)
g@9646:  * and comes with ABSOLUTELY NO WARRANTY! Check out the
g@9646:  * documentation coming with Dive4Elements River for details.
g@9646:  */
g@9646: package org.dive4elements.river.artifacts.model.fixings.fitting;
g@9646: 
g@9646: /**
g@9646:  * @author Gernot Belger
g@9646:  */
g@9646: final class TargetFunction {
g@9646: 
g@9646:     private final double[] discharge;
g@9646: 
g@9646:     public TargetFunction(final double[] discharge) {
g@9646:         this.discharge = discharge;
g@9646:     }
g@9646: 
g@9646:     public double[] calc_stages(final double a, final double b, final double m) {
g@9646: 
g@9646:         final double[] waterlevels = new double[this.discharge.length];
g@9646:         for (int i = 0; i < this.discharge.length; i++)
g@9646:             waterlevels[i] = a * Math.log(b + m * this.discharge[i]);
g@9646: 
g@9646:         return waterlevels;
g@9646:     }
g@9646: }