Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/WQKms.java @ 8651:81a8e3043794

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Improve coding style in KMFilter loops
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 31 Mar 2015 17:28:27 +0200
parents 1cff4c98df76
children 5e38e2924c07
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.artifacts.model;
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10
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11 import org.dive4elements.river.utils.DataUtil;
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12 import org.dive4elements.river.utils.DoubleUtil;
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13
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14 import gnu.trove.TDoubleArrayList;
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15
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16 import org.apache.log4j.Logger;
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17
361
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18
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19 /**
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20 * This class represents a pool of data triples that consists of 'W', 'Q' and
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21 * 'KM' data.
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22 *
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23 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
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24 */
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25 public class WQKms
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26 extends WQ
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27 implements WKms, QKms
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28 {
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29 private static Logger log = Logger.getLogger(WQKms.class);
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30
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31 /** The array that contains the 'KMs' values. */
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32 protected TDoubleArrayList kms;
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33
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34
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35 public WQKms() {
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36 this("");
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37 }
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38
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39
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40 public WQKms(String name) {
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41 super(name);
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42 this.kms = new TDoubleArrayList();
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43 }
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44
447
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45
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46 public WQKms(int capacity) {
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47 this(capacity, "");
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48 }
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49
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50
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51 public WQKms(int capacity, String name) {
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52 super(capacity, name);
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53 this.kms = new TDoubleArrayList(capacity);
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54 }
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55
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56 public WQKms(double [] kms, double [] qs, double [] ws) {
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57 this(kms, qs, ws, "");
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58 }
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59
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60 public WQKms(double []kms, WQ wq) {
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61 this(kms, wq.getQs(), wq.getWs(), wq.getName());
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62 }
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63
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64 public WQKms(TDoubleArrayList kms, TDoubleArrayList qs, TDoubleArrayList ws, String name) {
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65 super(qs, ws, name);
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66 this.kms = kms;
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67 }
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68
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69 public WQKms(double [] kms, double [] qs, double [] ws, String name) {
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70 super(qs, ws, name);
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71 this.kms = new TDoubleArrayList(kms);
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72 }
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73
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74 /** Create a WQKms from WKms, filling the Qs with given q. */
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75 public static WQKms fromWKms(WKms wkms, double q) {
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76 TDoubleArrayList qs = new TDoubleArrayList(wkms.allKms().size());
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77 qs.fill(q);
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78 WQKms wqkms = new WQKms(wkms.allKms(), qs, wkms.allWs(), wkms.getName());
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79 return wqkms;
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80 }
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81
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82 @Override
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83 public void removeNaNs() {
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84 DoubleUtil.removeNaNs(new TDoubleArrayList [] { ws, qs, kms });
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85 }
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86
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87 /**
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88 * Adds a new row to this data pool.
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89 *
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90 * @param w a W.
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91 * @param q a Q.
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92 * @param km a kms.
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93 */
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94 public void add(double w, double q, double km) {
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95 super.add(w, q);
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96 kms.add(km);
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97 }
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98
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99 @Override
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100 public double [] get(int idx) {
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101 return get(idx, new double [3]);
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102 }
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103
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104 /**
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105 * This method returns a triple of W, Q and Kms in a single 3dim array.
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106 *
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107 * @param idx The position of the triple.
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108 * @param dst destination array
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109 *
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110 * @return a triple of [W, Q, Kms] in dst.
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111 */
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112 @Override
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113 public double [] get(int idx, double [] dst) {
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114 dst[0] = ws .getQuick(idx);
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115 dst[1] = qs .getQuick(idx);
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116 dst[2] = kms.getQuick(idx);
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117 return dst;
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118 }
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119
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120 @Override
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121 public double getKm(int idx) {
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122 return kms.getQuick(idx);
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123 }
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124
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125 @Override
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126 public TDoubleArrayList allKms() {
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127 return kms;
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128 }
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129
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130 @Override
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131 public TDoubleArrayList allWs() {
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132 return ws;
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133 }
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134
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135 @Override
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136 public TDoubleArrayList allQs() {
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137 return qs;
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138 }
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139
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140 @Override
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141 public WKms filteredKms(double from, double to) {
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142 WQKms retval = new WQKms(getName());
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143 for (int i = 0, S = size(); i < S; i++) {
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144 double km = getKm(i);
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145 if (km >= from && km <= to) {
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146 retval.add(getW(i), getQ(i), km);
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147 }
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148 }
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149 return retval;
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150 }
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151
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152 public double[] getKms() {
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153 return kms.toNativeArray();
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154 }
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155
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156 /**
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157 * Returns a string that consist of the first and last kilometer.
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158 *
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159 * @return a string that consist of the first and last kilometer.
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160 */
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161 public String toString() {
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162 double from = getKm(0);
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163 double to = getKm(size()-1);
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164 return from + " - " + to;
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165 }
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166
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167 /**
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168 * Returns an array of two double values the first and last kilometer.
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169 *
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170 * @return a double array with the first and last km
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171 */
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172 public double[] getFirstLastKM() {
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173 /* Behold the first km might be larger then the last! */
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174 return new double[] {getKm(0), getKm(size()-1)};
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175 }
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176
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177 private static final double EPS = 1e-5;
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178
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179 public Double sameKm() {
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180 int s = size();
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181 if (s < 1) return null;
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182 if (s == 1) return getKm(0);
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183 double a = getKm(0);
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184 double b = getKm(s-1);
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185 double c = getKm(s/2);
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186
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187 return Math.abs(a-b) > EPS || Math.abs(a-c) > EPS || Math.abs(b-c) > EPS
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188 ? null
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189 : a;
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190 }
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191
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192 @Override
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193 public boolean guessRTLData() {
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194 return DataUtil.guessSameDirectionData(ws, allKms());
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195 }
361
3e3ec9613883 Introduced a model class to store a set of triple data objects that consist of W, Q and Kms information.
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196 }
3e3ec9613883 Introduced a model class to store a set of triple data objects that consist of W, Q and Kms information.
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197 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org