Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/SedimentLoadData.java @ 8038:aa622bddfdac

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Directly chain stations with the same km position together. This ease some summations.
author Sascha L. Teichmann <teichmann@intevation.de>
date Wed, 16 Jul 2014 13:06:09 +0200
parents 17542d100e75
children 3a769d5fb733
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 *
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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
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.
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7 */
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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;
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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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17542d100e75 Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
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13 import java.util.Collections;
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14 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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15 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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16 import java.util.TreeMap;
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17
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 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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19
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 public class SedimentLoadData implements Serializable
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21 {
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22 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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23
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_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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25 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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26 public static final int GF_SAND = 2;
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27 public static final int GF_SUSP_SAND = 3;
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28 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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29 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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30 public static final int GF_MAX = 5;
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31
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32 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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33 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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34 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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35 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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36 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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37 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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38 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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39 return -1;
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40 }
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41
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17542d100e75 Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
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42 public interface Visitor {
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aa622bddfdac Directly chain stations with the same km position together. This ease some summations.
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43 void visit(Station station);
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17542d100e75 Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
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44 }
17542d100e75 Throw out old visitor model and use grain fraction filters instead. Fixed neighborhood wirinng of measument stations.
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45
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46 public static class Value implements Serializable {
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47
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48 public interface Filter {
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49 boolean accept(Value value);
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50 }
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51
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52 private double value;
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53
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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54 private Load load;
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55
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56 public Value() {
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57 }
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58
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59 public Value(Load load, double value) {
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60 this.load = load;
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61 this.value = value;
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62 }
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64 public double getValue() {
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65 return value;
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66 }
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67
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68 public Load getLoad() {
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69 return load;
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70 }
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71 } // class Value
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74 public static class Load implements Serializable {
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76 private int id;
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78 private String description;
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80 private Date startTime;
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81 private Date stopTime;
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83 public Load() {
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84 }
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86 public Load(int id, String description, Date startTime, Date stopTime) {
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87 this.id = id;
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88 this.description = description;
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89 this.startTime = startTime;
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90 this.stopTime = stopTime;
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91 }
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93 public int getId() {
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94 return id;
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95 }
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97 public String getDescription() {
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98 return description;
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99 }
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101 public Date getStartTime() {
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102 return startTime;
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103 }
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104
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105 public Date getStopTime() {
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106 return stopTime;
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107 }
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108
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109 public boolean isEpoch() {
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110 return startTime != null && stopTime != null;
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111 }
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112 } // class SedimentLoad
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113
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114 public static class Station implements Serializable {
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115
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116 public static final int BED_LOAD = 0;
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117 public static final int SUSPENDED = 1;
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118
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119 private double station;
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120
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121 private int type;
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122
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123 private List<List<Value>> grainFractions;
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124
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125 private Station next;
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126 private Station prev;
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127
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128 private Station chain;
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129
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130 public Station() {
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131 this(BED_LOAD, 0.0);
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132 }
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133
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134 public Station(int type, double station) {
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135 grainFractions = new ArrayList<List<Value>>(GF_MAX+1);
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136 for (int i = 0; i < GF_MAX+1; ++i) {
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137 grainFractions.add(null);
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138 }
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139 this.type = type;
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140 this.station = station;
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141 }
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142
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143 public double getStation() {
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144 return station;
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145 }
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146
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147 public int getType() {
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148 return type;
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149 }
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150
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151 public void setNext(Station next) {
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152 this.next = next;
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153 }
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154
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155 public Station getNext() {
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156 return next;
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157 }
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158
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159 public void setPrev(Station prev) {
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160 this.prev = next;
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161 }
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162
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163 public Station getPrev() {
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164 return prev;
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165 }
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166
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167 public Station getNext(boolean isKMUp) {
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168 return isKMUp ? getNext() : getPrev();
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169 }
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170
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171 public Station getPrev(boolean isKMUp) {
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172 return isKMUp ? getPrev() : getNext();
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173 }
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174
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175 public Station nextChain() {
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176 return chain;
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177 }
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178
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179 public void append(Station station) {
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180 station.chain = chain;
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181 chain = station;
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182 }
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183
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184 public void addValue(int grainFraction, Value value) {
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185 List<Value> values = grainFractions.get(grainFraction);
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186 if (values == null) {
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187 values = new ArrayList<Value>();
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188 grainFractions.set(grainFraction, values);
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189 }
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190 values.add(value);
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191 }
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192
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193 public boolean hasGrainFraction(String grainFraction) {
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194 return hasGrainFraction(grainFractionIndex(grainFraction));
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195 }
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196
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197 public boolean hasGrainFraction(int grainFraction) {
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198 List<Value> values = grainFractions.get(grainFraction);
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199 return values != null && !values.isEmpty();
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200 }
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201
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202 public List<Value> filterGrainFraction(int grainFraction, Value.Filter filter) {
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203 List<Value> values = grainFractions.get(grainFraction);
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204 if (values == null || values.isEmpty()) {
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205 return Collections.<Value>emptyList();
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206 }
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207 List<Value> result = new ArrayList<Value>(values.size());
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208 for (Value value: values) {
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209 if (filter.accept(value)) {
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210 result.add(value);
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211 }
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212 }
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213 return result;
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214 }
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215
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216 public double findValueByLoadId(int id) {
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217 for (List<Value> values: grainFractions) {
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218 double value = findValueByLoadId(values, id);
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219 if (!Double.isNaN(value)) {
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220 return value;
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221 }
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222 }
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223 return Double.NaN;
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224 }
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225
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226 private static final double findValueByLoadId(
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227 List<Value> values,
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228 int id
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229 ) {
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230 if (values == null) {
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231 return Double.NaN;
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232 }
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233 // List is ordered by station id -> binary search.
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234 int lo = 0, hi = values.size()-1;
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235 while (lo <= hi) {
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236 int mid = (lo + hi)/2;
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237 Value v = values.get(mid);
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238 int xid = v.getLoad().getId();
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239 if (xid < id) hi = mid-1;
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240 else if (xid > id) lo = mid+1;
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241 else return v.getValue();
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242 }
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243
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244 return Double.NaN;
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245 }
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246
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247 public Station firstOfType(int type) {
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248 for (Station curr = this; curr != null; curr = curr.chain) {
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249 if (curr.getType() == type) {
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250 return curr;
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251 }
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252 }
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253 return null;
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254 }
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255 } // class Station
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256
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257
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258 private List<Station> stations;
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259
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260 public SedimentLoadData() {
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261 }
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262
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263 public SedimentLoadData(Collection<Station> stations) {
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264 setStations(stations);
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265 }
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266
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267 public void setStations(Collection<Station> stations) {
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268 TreeMap<Double, Station> same =
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269 new TreeMap<Double, Station>(EpsilonComparator.CMP);
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270
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271 for (Station station: stations) {
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272 Double key = station.getStation();
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273 Station st = same.get(key);
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274 if (st == null) {
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275 same.put(key, station);
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276 } else {
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277 st.append(station);
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278 }
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279 }
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280 this.stations = new ArrayList<Station>(same.values());
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281 wireNeighbors();
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282 }
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283
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284 private void wireNeighbors() {
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285 for (int i = 0, N = stations.size(); i < N-1; ++i) {
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286 for (Station curr = stations.get(i); curr != null; curr = curr.nextChain()) {
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287 int type = curr.getType();
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288 NEXT: for (int j = i+1; j < N; ++j) {
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289 Station next = stations.get(j).firstOfType(type);
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290 if (next != null) {
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291 curr.setNext(next);
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292 next.setPrev(curr);
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293 break NEXT;
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294 }
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295 }
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296 }
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297 }
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298 }
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299
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300 private void recursiveFindStations(
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301 double a, double b,
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302 int lo, int hi,
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303 Visitor visitor
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304 ) {
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305 while (lo >= hi) {
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diff changeset
306 int mid = (lo+hi)/2;
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307 Station st = stations.get(mid);
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308 double station = st.getStation();
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diff changeset
309 if (station < a) {
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diff changeset
310 hi = mid-1;
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diff changeset
311 } else if (station > b) {
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312 lo = mid+1;
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diff changeset
313 } else {
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diff changeset
314 recursiveFindStations(a, b, lo, mid-1, visitor);
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diff changeset
315 visitor.visit(st);
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316 lo = mid+1;
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317 }
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318 }
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319 }
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diff changeset
320
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diff changeset
321 public void findStations(double a, double b, Visitor visitor) {
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322 if (a > b) {
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323 double t = a; a = b; b = t;
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324 }
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325 recursiveFindStations(a, b, 0, stations.size()-1, visitor);
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326 }
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327
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328 public List<Station> findStations(double a, double b) {
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329 final List<Station> result = new ArrayList<Station>();
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330 findStations(a, b, new Visitor() {
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331 @Override
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332 public void visit(Station station) {
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333 result.add(station);
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334 }
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335 });
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336 return result;
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337 }
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338 }
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339 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org