Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedloadOverview.java @ 5863:4897a58c8746

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River artifacts: Added new copyright headers.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 28 Apr 2013 14:40:59 +0200
parents 5aa05a7a34b7
children af13ceeba52a
rev   line source
5863
4897a58c8746 River artifacts: Added new copyright headers.
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.minfo;
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10
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11 import java.io.Serializable;
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12 import java.text.SimpleDateFormat;
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13 import java.util.ArrayList;
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14 import java.util.Date;
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15 import java.util.List;
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16
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17 import org.apache.log4j.Logger;
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18 import org.hibernate.SQLQuery;
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19 import org.hibernate.Session;
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20 import org.hibernate.type.StandardBasicTypes;
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21 import org.w3c.dom.Document;
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22 import org.w3c.dom.Element;
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23
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24 import org.dive4elements.river.utils.KMIndex;
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25
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26 public class BedloadOverview implements Serializable {
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27
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28 private static Logger log = Logger.getLogger(BedloadOverview.class);
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29
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30 /**
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31 * Serial version UId.
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32 */
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33 private static final long serialVersionUID = -7607668985959407096L;
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34
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35 public interface Filter {
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36 boolean accept(KMIndex<List<Date>> entry);
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37
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38 } // interface Filter
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39
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40
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41 public static final Filter ACCEPT = new Filter() {
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42 public boolean accept(KMIndex<List<Date>> entry) {
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43 return true;
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44 }
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45 };
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46
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47 public static class KmFilter implements Filter {
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48
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49 protected double km;
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50
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51 public KmFilter (double km) {
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52 this.km = km;
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53 }
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54 public boolean accept(KMIndex<List<Date>> list) {
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55 for (KMIndex.Entry<List<Date>> e: list){
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56 if (e.getKm() == km) {
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57 return true;
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58 }
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59 }
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60 return false;
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61 }
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62 };
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63
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64 public static class DateFilter implements Filter {
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65
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66 protected Date date;
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67
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68 public DateFilter (Date date) {
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69 this.date = date;
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70 }
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71
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72 public boolean accept(KMIndex<List<Date>> list) {
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73 for (KMIndex.Entry<List<Date>> e: list){
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74 if (e.getValue().equals(this.date)) {
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75 return true;
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76 }
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77 }
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78 return false;
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79 }
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80 };
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81
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82 public static final double EPSILON = 1e-4;
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83
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84 public static final String DATE_FORMAT = "dd.MM.yyyy";
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85
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86 public static final String SQL_SQ =
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87 "SELECT" +
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88 " m.km AS km," +
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89 " m.datum AS datum " +
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90 "FROM messung m " +
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91 " JOIN station s" +
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92 " ON m.stationid = s.stationid " +
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93 " JOIN gewaesser g " +
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94 " ON s.gewaesserid = g.gewaesserid " +
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95 "WHERE" +
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96 " g.name = :name AND " +
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97 " m.km IS NOT NULL " +
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98 "ORDER by" +
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99 " m.km, m.datum";
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100
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101 protected String riverName;
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102
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103 protected KMIndex<List<Date>> entries;
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104
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105 public BedloadOverview() {
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106 entries = new KMIndex<List<Date>>();
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107 }
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108
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109 public BedloadOverview(String riverName) {
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110 this();
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111 this.riverName = riverName;
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112 }
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113
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114 private static final boolean epsilonEquals(double a, double b) {
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115 return Math.abs(a - b) < EPSILON;
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116 }
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117
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118 protected void loadData(Session session) {
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119 SQLQuery query = session.createSQLQuery(SQL_SQ)
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120 .addScalar("km", StandardBasicTypes.DOUBLE)
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121 .addScalar("datum", StandardBasicTypes.DATE);
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122
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123 query.setString("name", riverName);
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124
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125 List<Object []> list = query.list();
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126
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127 if (list.isEmpty()) {
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128 log.warn("No river '" + riverName + "' found.");
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129 }
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130
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131 Double prevKm = -Double.MAX_VALUE;
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132 List<Date> dates = new ArrayList<Date>();
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133
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134 for (Object [] row: list) {
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135 Double km = (Double)row[0];
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136 if (!epsilonEquals(km, prevKm) && !dates.isEmpty()) {
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137 entries.add(prevKm, dates);
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138 dates = new ArrayList<Date>();
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139 }
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140 dates.add((Date)row[1]);
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141 prevKm = km;
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142 }
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143
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144 if (!dates.isEmpty()) {
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145 entries.add(prevKm, dates);
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146 }
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147 }
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148
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149 public boolean load(Session session) {
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150
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151 loadData(session);
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152
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153 return true;
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154 }
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155
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156
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157 public void generateOverview(Document document) {
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158 generateOverview(document, ACCEPT);
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159 }
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160
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161 public KMIndex<List<Date>> filter(Filter f) {
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162 // TODO: Apply filter
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163 return entries;
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164 }
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165
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166 public void generateOverview(
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167 Document document,
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168 Filter filter
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169 ) {
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170 KMIndex<List<Date>> filtered = filter(ACCEPT);
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171
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172 Element sqElement = document.createElement("bedload");
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173
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174 Element riverElement = document.createElement("river");
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175
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176 riverElement.setAttribute("name", riverName);
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177
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178 sqElement.appendChild(riverElement);
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179
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180 SimpleDateFormat df = new SimpleDateFormat(DATE_FORMAT);
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181
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182 Element kmE = document.createElement("km");
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183
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184 for (KMIndex.Entry<List<Date>> e: filtered) {
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185
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186 List<Date> dates = e.getValue();
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187
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188 if (!dates.isEmpty()) {
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189 Element dEs = document.createElement("dates");
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190
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191 for (Date d: dates) {
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192 Element dE = document.createElement("date");
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193
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194 dE.setAttribute("value", df.format(d));
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195
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196 dEs.appendChild(dE);
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197 }
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198
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199 kmE.appendChild(dEs);
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200 }
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201 }
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202
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203 sqElement.appendChild(kmE);
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204
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205 document.appendChild(sqElement);
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206 }
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207 }
http://dive4elements.wald.intevation.org