Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/Distance.java @ 5337:3d7db721a278
Part of i18n fixes for flys/issue1180.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
---|---|
date | Tue, 19 Mar 2013 11:29:10 +0100 |
parents | 229e9b27ce15 |
children |
rev | line source |
---|---|
3246
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
1 package de.intevation.flys.artifacts.math; |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
2 |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
3 /** Helper to calculate distance(s). */ |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
4 public final class Distance { |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
5 /** Return distance between two values. */ |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
6 public static double distance(double a, double b) { |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
7 return Math.abs(a - b); |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
8 } |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
9 |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
10 /** Return whether a and be are within a certain distance. */ |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
11 public static boolean within(double a, double b, double threshold) { |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
12 return distance(a, b) <= threshold; |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
13 } |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
14 } |
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
15 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |