Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/SedimentLoadData.java @ 8050:9e79e384aa8b

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Sediment load: Added more 'sums' to be calculated.
author Sascha L. Teichmann <teichmann@intevation.de>
date Thu, 17 Jul 2014 18:22:16 +0200
parents cde6d2a9ec32
children fbe3ba5a480e
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
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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 package org.dive4elements.river.artifacts.model.minfo;
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9
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10 import java.io.Serializable;
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11 import java.util.ArrayList;
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12 import java.util.Collection;
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13 import java.util.Collections;
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14 import java.util.Comparator;
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15 import java.util.Date;
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16 import java.util.List;
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17 import java.util.TreeMap;
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18
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19 import org.dive4elements.river.utils.EpsilonComparator;
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20
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21 public class SedimentLoadData implements Serializable
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22 {
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23 public static final int GF_UNKNOWN = -1;
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24 public static final int GF_COARSE = 0;
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25 public static final int GF_FINE_MIDDLE = 1;
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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;
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29 public static final int GF_SUSP_SEDIMENT = 5;
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30 public static final int GF_TOTAL = 6;
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31 public static final int GF_BED_LOAD = 7;
01ad09af0975 Sediment load: Recognize grain fractions 'total', 'bed_load' and 'suspended_load' from pre-calculations.
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32 public static final int GF_SUSPENDED_LOAD = 8;
01ad09af0975 Sediment load: Recognize grain fractions 'total', 'bed_load' and 'suspended_load' from pre-calculations.
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33 public static final int GF_MAX = 8;
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34
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35 public static final int [] MEASUREMENT_STATION_GF = {
cde6d2a9ec32 Sediment Load: Added table to figure out where grain fractions are measured.
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36 /* GF_COARSE */ Station.BED_LOAD,
cde6d2a9ec32 Sediment Load: Added table to figure out where grain fractions are measured.
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37 /* GF_FINE_MIDDLE */ Station.BED_LOAD,
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38 /* GF_SAND */ Station.BED_LOAD,
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39 /* GF_SUSP_SAND */ Station.BED_LOAD,
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40 /* GF_SUSP_SAND_BED */ Station.BED_LOAD,
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41 /* GF_SUSP_SEDIMENT */ Station.SUSPENDED,
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42 /* GF_TOTAL */ Station.BED_LOAD|Station.SUSPENDED,
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43 /* GF_BED_LOAD */ Station.BED_LOAD,
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44 /* GF_SUSPENDED_LOAD */ Station.BED_LOAD
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45 };
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46
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47 public static final int measurementStationType(int grainFraction) {
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48 return grainFraction < 0 || grainFraction >= MEASUREMENT_STATION_GF.length
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49 ? Station.UNKNOWN
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50 : MEASUREMENT_STATION_GF[grainFraction];
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51 }
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52
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53 public static final int grainFractionIndex(String name) {
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54 if ("coarse".equals(name)) return GF_COARSE;
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55 if ("fine_middle".equals(name)) return GF_FINE_MIDDLE;
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56 if ("sand".equals(name)) return GF_SAND;
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57 if ("susp_sand".equals(name)) return GF_SUSP_SAND;
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58 if ("susp_sand_bed".equals(name)) return GF_SUSP_SAND_BED;
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59 if ("suspended_sediment".equals(name)) return GF_SUSP_SEDIMENT;
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60 if ("total".equals(name)) return GF_TOTAL;
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61 if ("bed_load".equals(name)) return GF_BED_LOAD;
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62 if ("suspended_load".equals(name)) return GF_SUSPENDED_LOAD;
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3a769d5fb733 Use GF_UNKNOWN constant instead of -1 to identify unknown grain fractions.
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63 return GF_UNKNOWN;
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64 }
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65
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66 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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67 void visit(Station station);
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68 }
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69
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70 public static class Value implements Serializable {
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71
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72 public interface Filter {
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73 boolean accept(Value value);
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74 }
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75
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76 public interface Visitor {
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77 void visit(Value value);
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78 }
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79
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80 private double value;
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81
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82 private Load load;
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83
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84 public Value() {
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85 }
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86
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87 public Value(Load load, double value) {
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88 this.load = load;
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89 this.value = value;
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90 }
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91
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92 public double getValue() {
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93 return value;
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94 }
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95
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96 public Load getLoad() {
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97 return load;
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98 }
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99 } // class Value
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100
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101
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102 public static class Load implements Serializable {
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103
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104 private int id;
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105
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106 private String description;
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107
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108 private Date startTime;
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109 private Date stopTime;
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110
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111 public Load() {
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112 }
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113
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114 public Load(int id, String description, Date startTime, Date stopTime) {
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115 this.id = id;
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116 this.description = description;
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117 this.startTime = startTime;
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118 this.stopTime = stopTime;
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119 }
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120
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121 public int getId() {
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122 return id;
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123 }
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124
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125 public String getDescription() {
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126 return description;
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127 }
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128
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129 public Date getStartTime() {
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130 return startTime;
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131 }
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132
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133 public Date getStopTime() {
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134 return stopTime;
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135 }
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136
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137 public boolean isEpoch() {
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138 return startTime != null && stopTime != null;
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139 }
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140 } // class SedimentLoad
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141
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142 public static class Station implements Serializable {
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143
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144 public static final int UNKNOWN = 0;
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145 public static final int BED_LOAD = 1;
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146 public static final int SUSPENDED = 2;
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147
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148 private double station;
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149
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150 private int type;
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151
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152 private List<List<Value>> grainFractions;
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153
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154 private Station next;
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155 private Station prev;
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156
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157 public Station() {
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158 this(BED_LOAD, 0.0);
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159 }
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160
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161 public Station(int type, double station) {
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162 grainFractions = new ArrayList<List<Value>>(GF_MAX+1);
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163 for (int i = 0; i < GF_MAX+1; ++i) {
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164 grainFractions.add(null);
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165 }
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166 this.type = type;
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167 this.station = station;
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168 }
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169
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170 public double getStation() {
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171 return station;
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172 }
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173
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174 public int getType() {
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175 return type;
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176 }
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177
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178 public boolean isType(int type) {
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179 return (this.type & type) != 0;
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180 }
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181
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182 public void setNext(Station next) {
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183 this.next = next;
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184 }
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185
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186 public Station getNext() {
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187 return next;
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188 }
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189
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190 public void setPrev(Station prev) {
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191 this.prev = next;
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192 }
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193
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194 public Station getPrev() {
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195 return prev;
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196 }
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197
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198 public Station getNext(boolean isKMUp) {
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199 return isKMUp ? getNext() : getPrev();
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200 }
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201
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202 public Station getPrev(boolean isKMUp) {
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203 return isKMUp ? getPrev() : getNext();
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204 }
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205
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206 public void merge(Station other) {
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207 this.type |= other.type;
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208 for (int i = 0, N = grainFractions.size(); i < N; ++i) {
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209 grainFractions.set(i,
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210 mergeValues(grainFractions.get(i), other.grainFractions.get(i)));
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211 }
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212 }
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213
8044
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214 private static final Comparator<Value> ID_CMP = new Comparator<Value>() {
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215 @Override
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216 public int compare(Value a, Value b) {
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217 return a.getLoad().getId() - b.getLoad().getId();
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218 }
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219 };
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220
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221 private static List<Value> mergeValues(List<Value> a, List<Value> b) {
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222 if (a == null) return b;
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223 if (b == null) return a;
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diff changeset
224 a.addAll(b);
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225 // re-establish id order.
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226 Collections.sort(a, ID_CMP);
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227 return a;
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228 }
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229
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230 public Station nextByType(int type, boolean isKMUp) {
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231 for (Station curr = this; curr != null; curr = curr.getNext(isKMUp)) {
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232 if (curr.isType(type)) {
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233 return curr;
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234 }
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235 }
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236 return null;
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237 }
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238
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239 public Station prevByType(int type, boolean isKMUp) {
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240 for (Station curr = this; curr != null; curr = curr.getPrev(isKMUp)) {
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241 if (curr.isType(type)) {
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242 return curr;
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243 }
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244 }
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245 return null;
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246 }
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247
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248 public void addValue(int grainFraction, Value value) {
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249 List<Value> values = grainFractions.get(grainFraction);
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250 if (values == null) {
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251 values = new ArrayList<Value>();
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252 grainFractions.set(grainFraction, values);
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253 }
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254 values.add(value);
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255 }
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256
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257 public boolean hasGrainFraction(String grainFraction) {
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258 return hasGrainFraction(grainFractionIndex(grainFraction));
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259 }
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260
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261 public boolean hasGrainFraction(int grainFraction) {
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262 List<Value> values = grainFractions.get(grainFraction);
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263 return values != null && !values.isEmpty();
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264 }
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265
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266 public void filterGrainFraction(
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267 int grainFraction,
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268 Value.Filter filter,
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269 Value.Visitor visitor
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270 ) {
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diff changeset
271 List<Value> values = grainFractions.get(grainFraction);
8047
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272 if (values != null && !values.isEmpty()) {
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diff changeset
273 for (Value value: values) {
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274 if (filter.accept(value)) {
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diff changeset
275 visitor.visit(value);
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276 }
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diff changeset
277 }
8033
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278 }
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279 }
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280
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281 public List<Value> filterGrainFraction(int grainFraction, Value.Filter filter) {
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282 final List<Value> result = new ArrayList<Value>();
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diff changeset
283 filterGrainFraction(grainFraction, filter, new Value.Visitor() {
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diff changeset
284 @Override
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diff changeset
285 public void visit(Value value) {
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286 result.add(value);
8033
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diff changeset
287 }
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diff changeset
288 });
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289 return result;
8033
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290 }
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291
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292 public double findValueByLoadId(int id) {
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293 for (List<Value> values: grainFractions) {
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diff changeset
294 double value = findValueByLoadId(values, id);
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diff changeset
295 if (!Double.isNaN(value)) {
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296 return value;
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diff changeset
297 }
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298 }
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299 return Double.NaN;
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300 }
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diff changeset
301
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diff changeset
302 private static final double findValueByLoadId(
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diff changeset
303 List<Value> values,
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diff changeset
304 int id
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diff changeset
305 ) {
8036
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diff changeset
306 if (values == null) {
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diff changeset
307 return Double.NaN;
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diff changeset
308 }
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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diff changeset
309 // List is ordered by station id -> binary search.
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diff changeset
310 int lo = 0, hi = values.size()-1;
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diff changeset
311 while (lo <= hi) {
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diff changeset
312 int mid = (lo + hi)/2;
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313 Value v = values.get(mid);
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314 int xid = v.getLoad().getId();
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315 if (xid < id) hi = mid-1;
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316 else if (xid > id) lo = mid+1;
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317 else return v.getValue();
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318 }
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319
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320 return Double.NaN;
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321 }
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322 } // class Station
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323
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324
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325 private Station [] stations;
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326
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327 public SedimentLoadData() {
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328 }
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329
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330 public SedimentLoadData(Collection<Station> stations) {
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331 setStations(stations);
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332 }
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333
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334 public void setStations(Collection<Station> stations) {
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335 TreeMap<Double, Station> same =
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336 new TreeMap<Double, Station>(EpsilonComparator.CMP);
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337
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338 for (Station station: stations) {
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339 Double key = station.getStation();
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340 Station st = same.get(key);
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341 if (st == null) {
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342 same.put(key, station);
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343 } else {
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344 st.merge(station);
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345 }
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346 }
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347 this.stations = new Station[same.size()];
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348 int i = 0;
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349 for (Station station: same.values()) {
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350 this.stations[i++] = station;
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351 }
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352 wireNeighbors();
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353 }
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354
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355 private void wireNeighbors() {
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356 for (int i = 1; i < stations.length; ++i) {
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357 stations[i-1].setNext(stations[i]);
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358 stations[i].setPrev(stations[i-1]);
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359 }
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360 }
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361
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362 private void recursiveFindStations(
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363 double a, double b,
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364 int lo, int hi,
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365 Visitor visitor
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366 ) {
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367 while (lo >= hi) {
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368 int mid = (lo+hi)/2;
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369 Station st = stations[mid];
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370 double station = st.getStation();
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371 if (station < a) {
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372 hi = mid-1;
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373 } else if (station > b) {
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374 lo = mid+1;
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375 } else {
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376 recursiveFindStations(a, b, lo, mid-1, visitor);
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377 visitor.visit(st);
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378 lo = mid+1;
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379 }
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380 }
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381 }
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382
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383 public void findStations(double a, double b, Visitor visitor) {
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384 if (a > b) {
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385 double t = a; a = b; b = t;
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386 }
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387 recursiveFindStations(a, b, 0, stations.length-1, visitor);
8035
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388 }
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diff changeset
389
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diff changeset
390 public List<Station> findStations(double a, double b) {
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391 final List<Station> result = new ArrayList<Station>();
8035
f2dc7992b8a3 Sediment loads from cache are sorted in station order so range filters
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diff changeset
392 findStations(a, b, new Visitor() {
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393 @Override
8038
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diff changeset
394 public void visit(Station station) {
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diff changeset
395 result.add(station);
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396 }
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diff changeset
397 });
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diff changeset
398 return result;
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diff changeset
399 }
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.
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400 }
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401 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org