Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/Distance.java @ 5818:a4ff4167be1e
Request feature info on all layers and show it as html if
the server does not return valid gml.
Non queryable layers produce an error message when the request
fails. This is good enough
author | Andre Heinecke <aheinecke@intevation.de> |
---|---|
date | Wed, 24 Apr 2013 17:33:27 +0200 |
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 : |