Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/Distance.java @ 4173:7d4480c0e68e
Allow users to select the current relevant discharge table in historical discharge table calculattion.
In addition to this, the discharge tables in the helper panel displayed in the client is ordered in time.
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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| date | Thu, 18 Oct 2012 12:13:48 +0200 |
| parents | 229e9b27ce15 |
| children |
| rev | line source |
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3246
229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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1 package de.intevation.flys.artifacts.math; |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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2 |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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3 /** Helper to calculate distance(s). */ |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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4 public final class Distance { |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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5 /** Return distance between two values. */ |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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6 public static double distance(double a, double b) { |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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7 return Math.abs(a - b); |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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8 } |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
9 |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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10 /** Return whether a and be are within a certain distance. */ |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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11 public static boolean within(double a, double b, double threshold) { |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
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12 return distance(a, b) <= threshold; |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
13 } |
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229e9b27ce15
New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff
changeset
|
14 } |
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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 : |