annotate flys-backend/src/main/java/de/intevation/flys/utils/EpsilonComparator.java @ 4742:ce6b9945bf8e

Doc.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 28 Dec 2012 15:03:55 +0100
parents flys-backend/src/main/java/de/intevation/flys/importer/parsers/tim/EpsilonComparator.java@7fdddc6ba296
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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1 package de.intevation.flys.utils;
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3 import java.util.Comparator;
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4
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5 /** Comparator with some tolerance (epsilon). */
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6 public class EpsilonComparator implements Comparator<Double>
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7 {
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8 public static final double EPSILON = 1e-4;
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9
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parents: 4732
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10 /** Ready-made comparator with 1e-4 tolerance. */
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11 public static final EpsilonComparator CMP = new EpsilonComparator(EPSILON);
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13 private double epsilon;
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15 public EpsilonComparator(double epsilon) {
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16 this.epsilon = epsilon;
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17 }
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19 @Override
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20 public int compare(Double a, Double b) {
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21 double diff = a - b;
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22 if (diff < -epsilon) return -1;
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23 if (diff > epsilon) return +1;
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24 return 0;
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25 }
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26 }
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27 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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