Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/SedimentLoadData.java @ 8035:f2dc7992b8a3

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Sediment loads from cache are sorted in station order so range filters are pretty easy to implement.
author Sascha L. Teichmann <teichmann@intevation.de>
date Tue, 15 Jul 2014 21:31:11 +0200
parents b6e7cfcabf2c
children 17542d100e75
rev   line source
8033
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
Sascha L. Teichmann <teichmann@intevation.de>
parents:
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1 /* Copyright (C) 2014 by Bundesanstalt für Gewässerkunde
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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2 * Software engineering by Intevation GmbH
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3 *
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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4 * This file is Free Software under the GNU AGPL (>=v3)
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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6 * documentation coming with Dive4Elements River for details.
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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7 */
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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8 package org.dive4elements.river.artifacts.model.minfo;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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9
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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10 import java.io.Serializable;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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11 import java.util.ArrayList;
8034
b6e7cfcabf2c Wire the neighbors to the measurement stations together. This eases the lookup for same types (suspended or bed load).
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12 import java.util.Collection;
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5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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13 import java.util.Date;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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14 import java.util.List;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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15 import java.util.TreeMap;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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16
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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17 import org.dive4elements.river.utils.EpsilonComparator;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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18
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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19 public class SedimentLoadData implements Serializable
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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20 {
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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21 public static final double STATION_EPS = 0.0001;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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22
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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23 public static final int GF_COARSE = 0;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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24 public static final int GF_FINE_MIDDLE = 1;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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25 public static final int GF_SAND = 2;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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26 public static final int GF_SUSP_SAND = 3;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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27 public static final int GF_SUSP_SAND_BED = 4;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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28 public static final int GF_SUSP_SEDIMENT = 5;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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29 public static final int GF_MAX = 5;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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30
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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31 public static final int grainFractionIndex(String name) {
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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32 if ("coarse".equals(name)) return GF_COARSE;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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33 if ("fine_middle".equals(name)) return GF_FINE_MIDDLE;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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34 if ("sand".equals(name)) return GF_SAND;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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35 if ("susp_sand".equals(name)) return GF_SUSP_SAND;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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36 if ("susp_sand_bed".equals(name)) return GF_SUSP_SAND_BED;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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37 if ("suspended_sediment".equals(name)) return GF_SUSP_SEDIMENT;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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38 return -1;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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39 }
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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40
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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41 public static class Value implements Serializable {
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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42
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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43 private double value;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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44
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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45 private Load load;
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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46
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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47 public Value() {
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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48 }
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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49
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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50 public Value(Load load, double value) {
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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51 this.load = load;
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52 this.value = value;
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53 }
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54
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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55 public double getValue() {
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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56 return value;
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57 }
5e3f4b4fcb28 New way to loaded sediment loads from database and cache it. The data structure a way more straight forward. TODO: Implement calculation on this basis.
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58
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59 public Load getLoad() {
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60 return load;
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61 }
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62 } // class Value
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63
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64
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65 public static class Load implements Serializable {
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66
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67 private int id;
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68
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69 private String description;
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70
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71 private Date startTime;
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72 private Date stopTime;
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74 public Load() {
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75 }
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77 public Load(int id, String description, Date startTime, Date stopTime) {
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78 this.id = id;
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79 this.description = description;
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80 this.startTime = startTime;
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81 this.stopTime = stopTime;
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82 }
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84 public int getId() {
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85 return id;
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86 }
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88 public String getDescription() {
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89 return description;
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90 }
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92 public Date getStartTime() {
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93 return startTime;
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94 }
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96 public Date getStopTime() {
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97 return stopTime;
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98 }
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100 public boolean isEpoch() {
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101 return startTime != null && stopTime != null;
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102 }
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103 } // class SedimentLoad
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104
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105 public static class Station implements Serializable {
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106
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107 public static final int BED_LOAD = 0;
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108 public static final int SUSPENDED = 1;
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109
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110 public interface Visitor {
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111 boolean accept(Station station);
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112 boolean accept(int grainFraction);
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113 boolean visit(Value value, int grainFraction);
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114 }
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115
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116 private double station;
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117
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118 private int type;
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119
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120 private List<List<Value>> grainFractions;
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121
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122 private Station next;
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123 private Station prev;
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124
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125 public Station() {
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126 this(BED_LOAD, 0.0);
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127 }
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128
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129 public Station(int type, double station) {
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130 grainFractions = new ArrayList<List<Value>>(GF_MAX+1);
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131 for (int i = 0; i < GF_MAX+1; ++i) {
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132 grainFractions.add(new ArrayList<Value>());
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133 }
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134 this.type = type;
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135 this.station = station;
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136 }
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137
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138 public double getStation() {
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139 return station;
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140 }
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141
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142 public int getType() {
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143 return type;
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144 }
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145
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146 public void setNext(Station next) {
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147 this.next = next;
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148 }
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149
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150 public Station getNext() {
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151 return next;
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152 }
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153
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154 public void setPrev(Station prev) {
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155 this.prev = next;
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156 }
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157
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158 public Station getPrev() {
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159 return prev;
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160 }
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161
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162 public void addValue(int grainFraction, Value value) {
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163 grainFractions.get(grainFraction).add(value);
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164 }
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165
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166 public boolean hasGrainFraction(String grainFraction) {
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167 return hasGrainFraction(grainFractionIndex(grainFraction));
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168 }
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169
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170 public boolean hasGrainFraction(int grainFraction) {
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171 List<Value> values = grainFractions.get(grainFraction);
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172 return !values.isEmpty();
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173 }
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174
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175 public void visit(Visitor visitor) {
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176 if (!visitor.accept(this)) {
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177 return;
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178 }
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179
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180 for (int i = 0; i < GF_MAX+1; ++i) {
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181 List<Value> values = grainFractions.get(i);
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182 if (values.isEmpty() || !visitor.accept(i)) {
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183 continue;
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184 }
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185 for (Value value: values) {
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186 if (!visitor.visit(value, i)) {
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187 break;
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188 }
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189 }
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190 }
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191 }
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192
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193 public boolean inside(double a, double b) {
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194 return station >= a && station <= b;
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195 }
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196
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197 public double findValueByLoadId(int id) {
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198 for (List<Value> values: grainFractions) {
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199 double value = findValueByLoadId(values, id);
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200 if (!Double.isNaN(value)) {
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201 return value;
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202 }
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203 }
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204 return Double.NaN;
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205 }
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206
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207 private static final double findValueByLoadId(
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208 List<Value> values,
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209 int id
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210 ) {
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211 // List is ordered by station id -> binary search.
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212 int lo = 0, hi = values.size()-1;
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213 while (lo <= hi) {
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214 int mid = (lo + hi)/2;
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215 Value v = values.get(mid);
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216 int xid = v.getLoad().getId();
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217 if (xid < id) hi = mid-1;
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218 else if (xid > id) lo = mid+1;
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219 else return v.getValue();
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220 }
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221
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222 return Double.NaN;
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223 }
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224 } // class Station
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225
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226
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227 private List<List<Station>> stations;
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228
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229 public SedimentLoadData() {
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230 }
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231
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232 public SedimentLoadData(Collection<Station> stations) {
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233 setStations(stations);
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234 }
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235
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236 public void setStations(Collection<Station> stations) {
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237 TreeMap<Double, List<Station>> same =
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238 new TreeMap<Double, List<Station>>(EpsilonComparator.CMP);
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239 for (Station station: stations) {
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240 Double key = station.getStation();
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241 List<Station> sts = same.get(key);
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242 if (sts == null) {
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243 sts = new ArrayList<Station>(2);
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244 same.put(key, sts);
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245 }
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246 sts.add(station);
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247 }
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248 this.stations = new ArrayList<List<Station>>(same.values());
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249 wireNeighbors();
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250 }
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251
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252 private void wireNeighbors() {
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253 for (int i = 0, N = stations.size()-1; i < N; ++i) {
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254 for (Station current: stations.get(i)) {
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255 int type = current.getType();
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256 NEXT: for (int j = i+1; j < N; ++j) {
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257 for (Station next: stations.get(j)) {
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258 if (next.getType() == type) {
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259 current.setNext(next);
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260 next.setPrev(current);
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261 break NEXT;
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262 }
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263 }
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264 }
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265 }
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266 }
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267 }
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268
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269 public interface Visitor {
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270 void visit(List<Station> stations);
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271 }
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272
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273 private void recursiveFindStations(
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274 double a, double b,
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275 int lo, int hi,
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276 Visitor visitor
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277 ) {
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278 while (lo >= hi) {
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279 int mid = (lo+hi)/2;
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280 List<Station> sts = stations.get(mid);
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281 double station = sts.get(0).getStation();
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282 if (station < a) {
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283 hi = mid-1;
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284 } else if (station > b) {
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285 lo = mid+1;
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286 } else {
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287 recursiveFindStations(a, b, lo, mid-1, visitor);
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288 visitor.visit(sts);
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289 lo = mid+1;
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290 }
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291 }
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292 }
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293
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294 public void findStations(double a, double b, Visitor visitor) {
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295 if (a > b) {
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296 double t = a; a = b; b = t;
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297 }
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298 recursiveFindStations(a, b, 0, stations.size()-1, visitor);
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299 }
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300
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301 public List<List<Station>> findStations(double a, double b) {
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302 final List<List<Station>> result = new ArrayList<List<Station>>();
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303 findStations(a, b, new Visitor() {
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304 @Override
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305 public void visit(List<Station> stations) {
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306 result.add(stations);
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307 }
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308 });
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309 return result;
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310 }
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311 }
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312 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org