Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/sq/Sieve.java @ 7710:a8fd76b15d41

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S/Q relation be more correct with judgment if a sieve is correct. Needs load and diameter.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 19 Dec 2013 10:45:14 +0100
parents af13ceeba52a
children
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.model.sq;
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10
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11 import java.util.Comparator;
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12
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13 public class Sieve
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14 {
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15 public static final double EPSILON = 1e-6;
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16
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17 public static final Comparator<Double> DIAMETER_CMP =
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18 new Comparator<Double>() {
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19 @Override
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20 public int compare(Double a, Double b) {
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21 double diff = a - b;
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22 if (diff < -EPSILON) return -1;
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23 if (diff > EPSILON) return +1;
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24 return 0;
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25 }
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26 };
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27
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28 protected double diameter;
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29 protected double load;
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30
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31 /**
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32 * Constructs a new instance.
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33 */
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34 public Sieve() {
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35 this(Double.NaN, Double.NaN);
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36 }
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37
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38 public Sieve(double diameter, double load) {
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39 this.diameter = diameter;
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40 this.load = load;
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41 }
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42
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43 /**
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44 * Gets the diameter for this instance.
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45 *
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46 * @return The diameter.
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47 */
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48 public double getDiameter() {
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49 return this.diameter;
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50 }
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51
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52 /**
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53 * Sets the diameter for this instance.
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54 *
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55 * @param diameter The diameter.
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56 */
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57 public void setDiameter(double diameter) {
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58 this.diameter = diameter;
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59 }
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60
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61 /**
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62 * Gets the load for this instance.
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63 *
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64 * @return The load.
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65 */
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66 public double getLoad() {
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67 return this.load;
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68 }
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69
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70 /**
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71 * Sets the load for this instance.
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72 *
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73 * @param load The load.
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74 */
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75 public void setLoad(double load) {
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76 this.load = load;
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77 }
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78
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79 public boolean matchesDiameter(double diameter) {
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80 return Math.abs(diameter - this.diameter) < EPSILON;
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81 }
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82
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83 public boolean hasDiameter() {
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84 return !Double.isNaN(diameter);
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85 }
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86
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87 public boolean hasLoad() {
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88 return !Double.isNaN(load);
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89 }
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90
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91 public boolean isValid() {
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92 return hasDiameter() && hasLoad();
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93 }
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94 }
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95 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org