Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/math/ConstantFunction.java @ 1115:f953c9a559d8

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Added license file and license headers. gnv-artifacts/trunk@1260 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 02 Nov 2010 17:46:55 +0000
parents a645bd23c1c8
children
rev   line source
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f953c9a559d8 Added license file and license headers.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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1 /*
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2 * Copyright (c) 2010 by Intevation GmbH
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3 *
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4 * This program is free software under the LGPL (>=v2.1)
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5 * Read the file LGPL.txt coming with the software for details
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6 * or visit http://www.gnu.org/licenses/ if it does not exist.
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7 */
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8
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9 package de.intevation.gnv.math;
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10
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11 import org.apache.commons.math.analysis.UnivariateRealFunction;
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12
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13 /**
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14 * Models a constant function to be used in function evaluation.
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15 *
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16 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
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17 */
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18 public class ConstantFunction
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19 implements UnivariateRealFunction
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20 {
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21 /**
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22 * The constant value.
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23 */
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24 protected double value;
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25
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26 /**
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27 * Defaut constructor.
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28 */
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29 public ConstantFunction() {
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30 }
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31
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32 /**
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33 * Constructor to create a ConstantFunction with
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34 * a given constant value.
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35 * @param value The constant value.
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36 */
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37 public ConstantFunction(double value) {
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38 this.value = value;
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39 }
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40
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41 public double value(double x) {
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42 return value;
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43 }
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44 }
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45 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org