Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/utils/EpsilonComparator.java @ 5069:082e7b01d562 dami
documentation: Use german Silbentrennung.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 20 Feb 2013 09:06:18 +0100 |
parents | ce6b9945bf8e |
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rev | line source |
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4742 | 1 package de.intevation.flys.utils; |
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7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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2 |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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3 import java.util.Comparator; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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4 |
4742 | 5 /** Comparator with some tolerance (epsilon). */ |
4732
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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6 public class EpsilonComparator implements Comparator<Double> |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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changeset
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7 { |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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8 public static final double EPSILON = 1e-4; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
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9 |
4742 | 10 /** Ready-made comparator with 1e-4 tolerance. */ |
4732
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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11 public static final EpsilonComparator CMP = new EpsilonComparator(EPSILON); |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
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12 |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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13 private double epsilon; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
14 |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
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15 public EpsilonComparator(double epsilon) { |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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16 this.epsilon = epsilon; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
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17 } |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
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18 |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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19 @Override |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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20 public int compare(Double a, Double b) { |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
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21 double diff = a - b; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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22 if (diff < -epsilon) return -1; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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23 if (diff > epsilon) return +1; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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24 return 0; |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
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25 } |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
diff
changeset
|
26 } |
7fdddc6ba296
Initial version of support files for TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.
Sascha Teichmann <sascha.teichmann@intevation.de>
parents:
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27 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |