Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/minfo/SedimentLoadFacet.java @ 5744:5bb179d4fd5f

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SedimentLoadFacet: Avoid weird steps, find correct measurement stations.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 17 Apr 2013 14:53:16 +0200
parents 5231e6b849ce
children 4a1bd43e7aa6
rev   line source
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1 package de.intevation.flys.artifacts.model.minfo;
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2
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3 import org.apache.log4j.Logger;
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4
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5 import java.util.ArrayList;
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6 import java.util.Arrays;
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7 import java.util.Collections;
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8 import java.util.Comparator;
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9 import java.util.List;
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10 import java.util.Map;
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11 import java.util.TreeMap;
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12
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13 import de.intevation.artifactdatabase.state.Facet;
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14 import de.intevation.artifacts.Artifact;
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15 import de.intevation.artifacts.CallContext;
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16 import de.intevation.flys.artifacts.FLYSArtifact;
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17 import de.intevation.flys.artifacts.model.CalculationResult;
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18 import de.intevation.flys.artifacts.model.DataFacet;
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19 import de.intevation.flys.model.MeasurementStation;
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20 import de.intevation.flys.artifacts.model.FacetTypes;
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21 import de.intevation.flys.artifacts.states.DefaultState.ComputeType;
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22
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23 import de.intevation.flys.utils.FLYSUtils;
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24
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25
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26 /** Facet to access various sediment loads. */
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27 public class SedimentLoadFacet
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28 extends DataFacet
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29 {
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30 /** Very own logger. */
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31 private static Logger logger = Logger.getLogger(SedimentLoadFacet.class);
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32
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33 /** Used as tolerance value when fetching measurement stations. */
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34 private static double EPSILON = 1e-5;
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35
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36
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37 public SedimentLoadFacet() {
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38 }
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39
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40 public SedimentLoadFacet(int idx, String name, String description,
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41 ComputeType type, String stateId, String hash) {
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42 super(idx, name, description, type, hash, stateId);
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43 }
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44
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45 public Object getData(Artifact artifact, CallContext context) {
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46 logger.debug("Get data for sediment load at index: " + index);
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47
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48 FLYSArtifact flys = (FLYSArtifact) artifact;
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49
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50 CalculationResult res = (CalculationResult) flys.compute(context, hash,
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51 stateId, type, false);
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52
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53 Object[] data =
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54 (SedimentLoadResult[]) res.getData(); // TODO CAST TO SPECIFIC CLASS
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55
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56 List<MeasurementStation> allStations = FLYSUtils.getRiver(flys).getMeasurementStations();
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57 SedimentLoadResult result = data != null && data.length > index ? (SedimentLoadResult)data[index] : null;
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58 if (result == null) {
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59 return null;
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60 }
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61
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62 List<Double> sortedStarts = new ArrayList<Double>();
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63 // Filter stations according to type.
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64 List<MeasurementStation> stations = new ArrayList<MeasurementStation>();
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65 for (MeasurementStation station: allStations) {
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66 if (station.getRange() == null || station.getMeasurementType() == null) {
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67 continue;
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68 }
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69 if (FacetTypes.IS.SEDIMENT_LOAD_NO_FLOAT(this.getName())
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70 && station.getMeasurementType().equals("Geschiebe")) {
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71 stations.add(station);
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72 sortedStarts.add(station.getStation());
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73 }
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74 else if (!FacetTypes.IS.SEDIMENT_LOAD_NO_FLOAT(this.getName())
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75 && station.getMeasurementType().equals("Schwebstoff")) {
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76 stations.add(station);
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77 sortedStarts.add(station.getStation());
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78 }
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79 }
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80 Collections.sort(sortedStarts);
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81
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82 // Access data according to type.
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83 double[][] sd = getLoadData(result);
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84
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85 // Sort by km.
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86 TreeMap<Double, Double> sortData = new TreeMap<Double,Double>();
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87
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88 double[] km = sd[0];
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89 double[] load = sd[1];
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90
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91 for (int i = 0 ; i < km.length; i++) {
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92 sortData.put(km[i], load[i]);
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93 }
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94
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95 double[][] values = new double[2][];
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96 values[0] = new double[km.length*3];
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97 values[1] = new double[km.length*3];
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98
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99 List<double[]> kmWithoutStation = new ArrayList<double[]>();
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100
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101 // Find station via its station (km).
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102 // TODO use a binarySearch instead of linear absdiff approach
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103 int i = 0;
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104 for (Map.Entry<Double, Double> entry: sortData.entrySet()) {
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105 boolean matchFound = false;
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106 // For now, ignore overlaps like (B> next A)
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107 for (MeasurementStation station: stations) {
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108 if (Math.abs(station.getStation() - entry.getKey()) < EPSILON ||
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109 station.getRange().containsTolerant(entry.getKey())) {
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110 // TODO: In rare cases, two matches can be found.
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111 values[0][i*3] = station.getRange().getA().doubleValue() + EPSILON;
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112 values[1][i*3] = entry.getValue();
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113 values[0][i*3+1] = station.getRange().getB().doubleValue() - EPSILON;
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114 values[1][i*3+1] = entry.getValue();
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115 values[0][i*3+2] = station.getRange().getB().doubleValue();
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116 values[1][i*3+2] = entry.getValue();
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117 matchFound = true;
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118 }
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119 }
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120 // Store points without match for later assessment.
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121 if (!matchFound) {
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122 logger.warn("measurement without station ("+entry.getKey()+")!");
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123 }
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124 i++;
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125 }
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126
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127 for (int x = 0; x < values[0].length-1; x++) {
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128 // Introduce gaps where no data in measurement station.
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129 if (Math.abs(values[0][x+1] - values[0][x]) > 3*EPSILON
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130 && values[1][x+1] != values[1][x]) {
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131 values[0][x] = Double.NaN;
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132 values[1][x] = Double.NaN;
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133 }
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134 }
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135
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136 return values;
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137 }
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138
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139
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140 /** Get data according to type of facet. */
4feda81c38bc SedimentLoadFacet: Minor refactor.
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diff changeset
141 private double[][] getLoadData(SedimentLoadResult result) {
4feda81c38bc SedimentLoadFacet: Minor refactor.
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142 if (getName().equals(FacetTypes.SEDIMENT_LOAD_SAND))
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143 return result.getSandData();
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144 else if (getName().equals(FacetTypes.SEDIMENT_LOAD_COARSE))
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145 return result.getCoarseData();
4feda81c38bc SedimentLoadFacet: Minor refactor.
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146 else if (getName().equals(FacetTypes.SEDIMENT_LOAD_FINEMIDDLE))
4feda81c38bc SedimentLoadFacet: Minor refactor.
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147 return result.getFineMiddleData();
4feda81c38bc SedimentLoadFacet: Minor refactor.
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148 else if (getName().equals(FacetTypes.SEDIMENT_LOAD_SUSP_SAND))
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149 return result.getSuspSandData();
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150 else if (getName().equals(FacetTypes.SEDIMENT_LOAD_SUSP_SAND_BED))
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151 return result.getSuspSandBedData();
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152 else if (getName().equals(FacetTypes.SEDIMENT_LOAD_SUSP_SEDIMENT))
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153 return result.getSuspSedimentData();
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154 else if (getName().equals(FacetTypes.SEDIMENT_LOAD_TOTAL_LOAD))
4feda81c38bc SedimentLoadFacet: Minor refactor.
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155 return result.getTotalLoadData();
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156 else if (getName().equals(FacetTypes.SEDIMENT_LOAD_TOTAL))
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157 return result.getTotalData();
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158 else {
4feda81c38bc SedimentLoadFacet: Minor refactor.
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159 logger.error("SedimentLoadFacet " + getName() + " cannot determine data type.");
4feda81c38bc SedimentLoadFacet: Minor refactor.
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160 return null;
4feda81c38bc SedimentLoadFacet: Minor refactor.
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161 }
4feda81c38bc SedimentLoadFacet: Minor refactor.
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162 }
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163
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164 /** Copy deeply. */
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165 @Override
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166 public Facet deepCopy() {
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167 SedimentLoadFacet copy = new SedimentLoadFacet();
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168 copy.set(this);
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169 copy.type = type;
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170 copy.hash = hash;
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171 copy.stateId = stateId;
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172 return copy;
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173 }
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174 }
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175 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org