Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/math/Distance.java @ 4775:d9f1202cef78

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Do the pairing of FLYS and AFT discharge tables by the field 'ABFLUSSTAFEL.BFG_ID' in AFT and 'discharge_table.bfg_id' in FLYS. TODO: Create new column in discharge_tabel.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sat, 05 Jan 2013 14:52:55 +0100
parents 229e9b27ce15
children
rev   line source
3246
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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1 package de.intevation.flys.artifacts.math;
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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2
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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3 /** Helper to calculate distance(s). */
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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4 public final class Distance {
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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5 /** Return distance between two values. */
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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6 public static double distance(double a, double b) {
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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7 return Math.abs(a - b);
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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8 }
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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9
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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10 /** Return whether a and be are within a certain distance. */
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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11 public static boolean within(double a, double b, double threshold) {
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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12 return distance(a, b) <= threshold;
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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13 }
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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14 }
229e9b27ce15 New Distance helper module.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
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15 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org