Mercurial > dive4elements > river
view flys-backend/src/main/java/de/intevation/flys/utils/EpsilonComparator.java @ 5745:ed9d7e360658
Merged.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 17 Apr 2013 15:00:38 +0200 |
parents | ce6b9945bf8e |
children |
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package de.intevation.flys.utils; import java.util.Comparator; /** Comparator with some tolerance (epsilon). */ public class EpsilonComparator implements Comparator<Double> { public static final double EPSILON = 1e-4; /** Ready-made comparator with 1e-4 tolerance. */ public static final EpsilonComparator CMP = new EpsilonComparator(EPSILON); private double epsilon; public EpsilonComparator(double epsilon) { this.epsilon = epsilon; } @Override public int compare(Double a, Double b) { double diff = a - b; if (diff < -epsilon) return -1; if (diff > epsilon) return +1; return 0; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :