Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Segment.java @ 4059:c63f0b4ac1b4

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Documentation.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Mon, 08 Oct 2012 12:11:45 +0200
parents 1ddbf66a2b0a
children a929d9a9fa1e
rev   line source
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1 package de.intevation.flys.artifacts.model;
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2
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3 import de.intevation.flys.model.DischargeTable;
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4 import de.intevation.flys.model.Gauge;
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5 import de.intevation.flys.model.River;
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6
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7 import de.intevation.flys.utils.DoubleUtil;
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8
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9 import java.io.Serializable;
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11 import java.util.ArrayList;
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12 import java.util.Collections;
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13 import java.util.Comparator;
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14 import java.util.List;
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16 import org.apache.log4j.Logger;
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17
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18 public class Segment
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19 implements Serializable
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20 {
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21 private static Logger log = Logger.getLogger(Segment.class);
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22
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23 public static final Comparator<Segment> REF_CMP =
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24 new Comparator<Segment>() {
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25 @Override
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26 public int compare(Segment a, Segment b) {
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27 double d = a.referencePoint - b.referencePoint;
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28 if (d < 0d) return -1;
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29 return d > 0d ? +1 : 0;
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30 }
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31 };
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32
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33 protected double from;
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34 protected double to;
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35 protected double [] values;
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36 protected double [] backup;
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37 protected double referencePoint;
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38
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39 public Segment() {
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40 }
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41
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42 public Segment(double referencePoint) {
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43 this.referencePoint = referencePoint;
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44 }
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45
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46 public Segment(double from, double to, double [] values) {
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47 this.from = from;
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48 this.to = to;
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49 this.values = values;
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50 }
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51
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52 public boolean isUp() {
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53 return from < to;
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54 }
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55
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56 public boolean inside(double km) {
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57 return from < to
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58 ? km >= from && km <= to
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59 : km >= to && km <= from;
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60 }
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61
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62 @Override
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63 public String toString() {
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64 StringBuilder sb = new StringBuilder("Segment: [");
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65 sb.append("from: ").append(from).append("; to: ")
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66 .append(to)
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67 .append("; ref: ").append(referencePoint)
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68 .append("; values: (");
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69 for (int i = 0; i < values.length; ++i) {
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70 if (i > 0) sb.append(", ");
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71 sb.append(values[i]);
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72 }
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73 sb.append(")]");
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74 return sb.toString();
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75 }
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76
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77 public void setFrom(double from) {
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78 this.from = from;
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79 }
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80
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81 public void backup() {
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82 backup = values != null
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83 ? (double [])values.clone()
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84 : null;
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85 }
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86
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87 public double [] getBackup() {
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88 return backup;
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89 }
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90
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91 public double getFrom() {
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92 return from;
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93 }
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94
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95 public void setTo(double to) {
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96 this.to = to;
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97 }
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98
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99 public double getTo() {
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100 return to;
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101 }
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102
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103 public void setValues(double [] values) {
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104 this.values = values;
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105 }
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106
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107 public double [] getValues() {
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108 return values;
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109 }
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110
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111 public int numValues() {
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112 return values.length;
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113 }
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114
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115 public void setReferencePoint(double referencePoint) {
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116 this.referencePoint = referencePoint;
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117 }
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118
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119 public double getReferencePoint() {
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120 return referencePoint;
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121 }
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122
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123 public static List<Segment> parseSegments(String input) {
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124
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125 final List<Segment> segments = new ArrayList<Segment>();
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126
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127 DoubleUtil.parseSegments(input, new DoubleUtil.SegmentCallback() {
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128 @Override
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129 public void newSegment(double from, double to, double [] values) {
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130 segments.add(new Segment(from, to, values));
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131 }
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132 });
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133
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134 return segments;
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135 }
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136
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137 public static boolean setReferencePointConvertQ(
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138 List<Segment> segments,
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139 River river,
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140 boolean isQ,
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141 Calculation report
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142 ) {
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143 int numResults = -1;
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144
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145 boolean success = true;
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146
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147 // assign reference points
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148 for (Segment segment: segments) {
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149 Gauge gauge = river.maxOverlap(segment.getFrom(), segment.getTo());
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150
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151 if (gauge == null) {
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152 log.warn("no gauge found. Defaults to mid point.");
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153 segment.setReferencePoint(
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154 0.5*(segment.getFrom()+segment.getTo()));
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155 }
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156 else {
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157 double ref = gauge.getStation().doubleValue();
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158 log.debug(
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159 "reference gauge: " + gauge.getName() +
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160 " (km " + ref + ")");
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161 segment.setReferencePoint(ref);
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162 }
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163
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164 double [] values = segment.values;
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165
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166 if (numResults == -1) {
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167 numResults = values.length;
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168 }
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169 else if (numResults != values.length) {
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170 log.warn("wrong length of values");
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171 return false;
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172 }
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173
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174 // convert to Q if needed
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175 if (!isQ && gauge != null) {
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176
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177 DischargeTable dt = gauge.fetchMasterDischargeTable();
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178
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179 double [][] table =
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180 DischargeTables.loadDischargeTableValues(dt, 1);
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181
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182 // need the original values for naming
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183 segment.backup();
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184
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185 for (int i = 0; i < values.length; ++i) {
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186 double w = values[i] / 100.0;
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187 double [] qs = DischargeTables.getQsForW(table, w);
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188 if (qs.length == 0) {
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189 log.warn("No Qs found for W = " + values[i]);
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190 report.addProblem("cannot.find.w.for.q", values[i]);
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191 values[i] = Double.NaN;
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192 success = false;
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193 }
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194 else {
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195 values[i] = qs[0];
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196 if (qs.length > 1) {
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197 log.warn(
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198 "More than one Q found for W = " + values[i]);
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199 }
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200 }
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201 }
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202 }
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203 } // for all segments
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204
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205 Collections.sort(segments, Segment.REF_CMP);
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206
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207 return success;
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208 }
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209 }
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210 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org