Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/sq/SieveArray.java @ 9726:0a5239a1e46e 3.2.x

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Upgrade to Log4j 2
author Tom Gottfried <tom@intevation.de>
date Wed, 02 Mar 2022 10:26:50 +0100
parents 0737573aa9ac
children
rev   line source
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4897a58c8746 River artifacts: Added new copyright headers.
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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.Arrays;
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12
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13 import org.apache.logging.log4j.Logger;
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14 import org.apache.logging.log4j.LogManager;
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15
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16 public class SieveArray
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17 {
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18 private static final Logger log =
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19 LogManager.getLogger(SieveArray.class);
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20
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21 public static final double EPSILON = 1e-8;
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22
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23 public static final double [] SIEVE_DIAMETERS = {
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24 100d, 63d, 31.5d, 16d,
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25 8d, 4d, 2d, 1d,
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26 0.5d, 0.25d, 0.125d, 0.063d
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27 };
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28
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29 protected double [] loads;
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30 protected double [] normLoads;
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31
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32 public SieveArray() {
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33 loads = new double[SIEVE_DIAMETERS.length+1];
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34 normLoads = new double[SIEVE_DIAMETERS.length+1];
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35 }
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36
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37 public void doSieving(Sieve s) {
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38
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39 double diameter = s.getDiameter();
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40
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41 for (int i = 0; i < SIEVE_DIAMETERS.length; ++i) {
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42 if (diameter >= SIEVE_DIAMETERS[i]) {
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43 loads[i] += s.getLoad();
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44 return;
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45 }
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46 }
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47 loads[loads.length-1] += s.getLoad();
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48 }
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49
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50 public double totalLoad() {
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51 double sum = 0d;
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52 for (double load: loads) {
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53 sum += load;
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54 }
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55 return sum;
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56 }
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57
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58 public void calculateNormLoads() {
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59 double total = totalLoad();
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60 if (Math.abs(total) < EPSILON) {
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61 System.arraycopy(loads, 0, normLoads, 0, loads.length);
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62 return;
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63 }
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64 total = 1d/total;
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65 for (int i = 0; i < normLoads.length; ++i) {
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66 normLoads[i] = total*loads[i];
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67 }
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68 log.debug("calculated norm loads: " + Arrays.toString(normLoads));
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69 }
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70
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71 /*
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72 public void adjust(double eight, double four) {
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73 this.normLoads[4] = eight;
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74 this.normLoads[5] = four;
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75 }
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76 */
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77
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78 /**
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79 * Gets the loads for this instance.
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80 *
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81 * @return The loads.
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82 */
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83 public double[] getLoads() {
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84 return this.loads;
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85 }
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86
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87 /**
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88 * Gets the loads for this instance.
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89 *
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90 * @param index The index to get.
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91 * @return The loads.
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92 */
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93 public double getLoads(int index) {
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94 return this.loads[index];
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95 }
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96
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97 /**
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98 * Gets the normLoads for this instance.
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99 *
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100 * @return The normLoads.
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101 */
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102 public double[] getNormLoads() {
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103 return this.normLoads;
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104 }
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105
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106 /**
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107 * Gets the normLoads for this instance.
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108 *
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109 * @param index The index to get.
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110 * @return The normLoads.
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111 */
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112 public double getNormLoads(int index) {
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113 return this.normLoads[index];
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114 }
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115
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116 public double sandNormFraction() {
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117 double sum = 0d;
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118 for (int i = 7; i < normLoads.length; ++i) {
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119 sum += normLoads[i];
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120 }
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121 return sum;
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122 }
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123
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124 public double coarseNormFraction() {
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125 double sum = 0d;
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126 for (int i = 0; i < 4; ++i) {
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127 sum += normLoads[i];
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128 }
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129 return sum;
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
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130 }
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
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131
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
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132 public double gravelNormFraction() {
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
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133 double sum = 0d;
4813
bf2fd9c58ac4 Fixed MINFO SQ calculation.
Raimund Renkert <rrenkert@intevation.de>
parents: 4004
diff changeset
134 for (int i = 4; i < 7; ++i) {
4004
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
diff changeset
135 sum += normLoads[i];
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
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136 }
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
diff changeset
137 return sum;
3b79e8afca7e S(Q) calculate effective width
Sascha L. Teichmann <teichmann@intevation.de>
parents: 4001
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138 }
3992
a9c93b7c9da1 Simpify the S(Q) fraction sieving stuff.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
139 }
a9c93b7c9da1 Simpify the S(Q) fraction sieving stuff.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
diff changeset
140 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org