Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/math/ConstantFunction.java @ 875:5e9efdda6894
merged gnv-artifacts/1.0
| author | Thomas Arendsen Hein <thomas@intevation.de> |
|---|---|
| date | Fri, 28 Sep 2012 12:13:56 +0200 |
| parents | a645bd23c1c8 |
| children | f953c9a559d8 |
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| 722:bb3ffe7d719e | 875:5e9efdda6894 |
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| 1 package de.intevation.gnv.math; | |
| 2 | |
| 3 import org.apache.commons.math.analysis.UnivariateRealFunction; | |
| 4 | |
| 5 /** | |
| 6 * Models a constant function to be used in function evaluation. | |
| 7 * | |
| 8 * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a> | |
| 9 */ | |
| 10 public class ConstantFunction | |
| 11 implements UnivariateRealFunction | |
| 12 { | |
| 13 /** | |
| 14 * The constant value. | |
| 15 */ | |
| 16 protected double value; | |
| 17 | |
| 18 /** | |
| 19 * Defaut constructor. | |
| 20 */ | |
| 21 public ConstantFunction() { | |
| 22 } | |
| 23 | |
| 24 /** | |
| 25 * Constructor to create a ConstantFunction with | |
| 26 * a given constant value. | |
| 27 * @param value The constant value. | |
| 28 */ | |
| 29 public ConstantFunction(double value) { | |
| 30 this.value = value; | |
| 31 } | |
| 32 | |
| 33 public double value(double x) { | |
| 34 return value; | |
| 35 } | |
| 36 } | |
| 37 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |