Mercurial > dive4elements > river
annotate backend/src/main/java/org/dive4elements/river/importer/parsers/W80CSVParser.java @ 9801:1d7a72a50183 3.2.x tip
Assume Compose V2, consistently
author | Tom Gottfried <tom@intevation.de> |
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date | Thu, 23 Nov 2023 10:14:13 +0100 |
parents | 0a5239a1e46e |
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rev | line source |
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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.importer.parsers; |
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10 |
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11 import org.dive4elements.artifacts.common.utils.FileTools; |
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12 |
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13 import org.dive4elements.river.importer.XY; |
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14 |
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15 import org.dive4elements.river.importer.parsers.tim.Coordinate; |
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16 |
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17 import org.dive4elements.river.backend.utils.DateGuesser; |
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18 import org.dive4elements.river.backend.utils.EpsilonComparator; |
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19 |
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20 import java.io.File; |
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21 import java.io.IOException; |
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22 |
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23 import java.util.ArrayList; |
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24 import java.util.Calendar; |
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25 import java.util.Date; |
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26 import java.util.List; |
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27 import java.util.Map; |
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28 import java.util.TreeMap; |
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29 |
9726 | 30 import org.apache.logging.log4j.Logger; |
31 import org.apache.logging.log4j.LogManager; | |
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32 |
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33 |
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34 /** |
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35 * To create cross-sections, generate: Map<double,list<xy>> from files |
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36 * in w80/csv format. |
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37 */ |
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38 public class W80CSVParser extends LineParser implements CrossSectionParser |
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39 { |
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40 /** Private log. */ |
9726 | 41 private static Logger log = LogManager.getLogger(W80CSVParser.class); |
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42 |
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43 |
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44 /** The current line to which add points. */ |
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45 private List<XY> currentLine; |
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46 |
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47 |
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48 /** Data collected so far, last element will be currentLine. */ |
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49 protected Map<Double, List<XY>> data; |
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50 |
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51 |
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52 /** Anchor to project to. */ |
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53 private static class Anchor extends Coordinate { |
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54 |
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55 private static final double EPSILON = 1e-5; |
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56 |
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57 private double station; |
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58 |
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59 public Anchor(double x, double y, double z, double station) { |
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60 super(x, y, z); |
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61 this.station = station; |
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62 } |
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63 |
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64 public boolean sameStation(double station) { |
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65 return Math.abs(this.station - station) < EPSILON; |
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66 } |
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67 } |
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68 |
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69 |
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70 /** Reference point for simple projection. */ |
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71 private Anchor anchor; |
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72 |
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73 |
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74 /** |
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75 * Reference point for distance calculations, introduced to |
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76 * deal with bends in the lines. |
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77 * Array has two entrys: first is GK-Right, second GK-High. |
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78 */ |
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79 private double[] lastPointGK; |
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80 |
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81 |
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82 /** Measurement date of anchor as listed in w80 file. */ |
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83 private Date anchorDate; |
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84 |
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85 |
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86 private double distanceToLastPoint(double gkr, double gkh) { |
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87 double dx = gkr - lastPointGK[0]; |
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88 double dy = gkh - lastPointGK[1]; |
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89 double d = dx*dx + dy*dy; |
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90 |
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91 return Math.sqrt(d); |
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92 } |
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93 |
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94 |
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95 /** Trivial constructor. */ |
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96 public W80CSVParser() { |
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97 data = new TreeMap<Double, List<XY>>(EpsilonComparator.CMP); |
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98 } |
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99 |
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100 |
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101 /** |
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102 * Get the description of the cross section parsed - |
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103 * directory name of current file. |
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104 */ |
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105 @Override |
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106 public String getDescription() { |
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107 return getInputFile().getParentFile().getName(); |
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108 } |
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109 |
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110 |
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111 /** Get the year of this cross sections measurement. */ |
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112 @Override |
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113 public Integer getYear() { |
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114 if (anchorDate == null) { |
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115 return null; |
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116 } |
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117 Calendar dateCalendar = Calendar.getInstance(); |
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118 dateCalendar.setTime(anchorDate); |
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119 return dateCalendar.get(Calendar.YEAR); |
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120 } |
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121 |
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122 |
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123 /** |
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124 * Return the data parsed. |
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125 * @return map of stations (km) to list of points. |
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126 */ |
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127 @Override |
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128 public Map<Double, List<XY>> getData() { |
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129 return data; |
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130 } |
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131 |
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132 |
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133 /** Recursively descend root, ask the callback for every file |
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134 * found and parse it if callback acks. When done, notify callback. */ |
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135 public void parseW80CSVs(File root, final Callback callback) { |
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136 |
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137 FileTools.walkTree(root, new FileTools.FileVisitor() { |
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138 @Override |
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139 public boolean visit(File file) { |
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140 if (file.isFile() && file.canRead() |
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141 && file.getName().toLowerCase().endsWith(".csv") |
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142 && (callback == null || callback.accept(file))) { |
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143 reset(); |
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144 try { |
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145 parse(file); |
8200
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146 log.info("parsing done"); |
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147 if (callback != null) { |
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148 callback.parsed(W80CSVParser.this); |
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149 } |
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150 } |
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151 catch (IOException ioe) { |
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152 log.error("IOException while parsing file"); |
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153 return false; |
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154 } |
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155 } |
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156 return true; |
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157 } |
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158 }); |
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159 } |
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160 |
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161 |
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162 /** Called before consuming first line of file. */ |
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163 public void reset() { |
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164 data.clear(); |
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165 currentLine = new ArrayList<XY>(); |
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166 anchor = null; |
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167 anchorDate = null; |
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168 lastPointGK = new double[] {0d,0d}; |
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169 } |
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170 |
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171 |
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172 /** |
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173 * Get the Index of the last cross-section lines point. |
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174 * @return last points index, -1 if not available. |
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175 */ |
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176 private int getLastPointIdx() { |
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177 if (currentLine == null || currentLine.isEmpty()) { |
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178 return -1; |
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179 } |
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180 XY lastPoint = this.currentLine.get(currentLine.size()-1); |
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181 return lastPoint.getIndex(); |
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182 } |
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183 |
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184 |
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185 private double getLastPointX() { |
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186 if (currentLine == null || currentLine.isEmpty()) { |
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187 return 0d; |
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188 } |
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189 XY lastPoint = this.currentLine.get(currentLine.size()-1); |
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190 return lastPoint.getX(); |
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191 } |
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192 |
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193 |
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194 /** |
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195 * Add a Point (YZ,Index) to the current cross section line. |
6514 | 196 * @param y The y coordinate of new point in GK. |
197 * @param z The z coordinate of new point in GK. | |
198 * @param height The hight (3rd coord) of point, in meter. | |
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199 * @param idx Ignored, the parameter of new point. |
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200 * @return true if point could been added, false otherwise (e.g. not |
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201 * parsable y or z values. |
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202 */ |
8856 | 203 private boolean addPoint( |
204 double gkr, | |
205 double gkh, | |
206 double height, | |
207 String idx | |
208 ) { | |
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209 // Calculate distance between this and lst point (add distances). |
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210 double d = distanceToLastPoint(gkr, gkh); |
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211 double totalX = getLastPointX() + d; |
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212 |
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213 // We ignore idx, and increment instead. |
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214 int index; |
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215 int lastPointIdx = getLastPointIdx(); |
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216 if (lastPointIdx <= 0) { |
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217 index = 1; |
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218 } else { |
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219 index = lastPointIdx + 1; |
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220 } |
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221 |
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222 this.lastPointGK[0] = gkr; |
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223 this.lastPointGK[1] = gkh; |
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224 currentLine.add(new XY(totalX, height, index)); |
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225 return true; |
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226 } |
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227 |
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228 // As per documentation: |
8856 | 229 // BW;WPA;ST;UF;PN;LS;BL-LS;Y;X;Z;DL;LZK;SY;SX;SZ;BML;HS;BL-HS; |
230 // H;DH;HZK;SH;WVA;BMH;BMP;DST;DB;LDS;LKZ; | |
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231 |
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232 |
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233 /** |
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234 * Called for each line. Try to extract info from a w80 line. |
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235 * @param lineNum Number of line (starting with 1). |
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236 */ |
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237 @Override |
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238 protected void handleLine(int lineNum, String line) { |
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239 // First two lines are 'comment'-like. |
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240 if (lineNum == 1 || lineNum == 2) { |
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241 return; |
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242 } |
8856 | 243 // The 'shore' field shows which side of the river the shore |
244 // is measured. | |
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245 // Therefore, the points have to be added in the correct order (also |
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246 // because later distances are calculated which cannot be |
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247 // negative. |
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248 String[] fields = line.split(";"); |
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249 String station = fields[2]; |
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250 String shore = fields[3]; |
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251 // TODO: There is 'station' and a 'shore'-code behind. |
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252 // 1 = left, 2 = right. none = middle |
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253 String pointIndex = line.substring(16,21); |
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254 // For GK, first seven digits are of interest. |
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255 String gkRight = fields[7]; |
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256 String gkHigh = fields[8]; |
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257 String date = fields[10]; |
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258 String height = fields[18]; |
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259 String dateH = line.substring(54,60); |
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260 String dateDec = line.substring(64,70); |
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261 |
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262 double stationKm; |
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263 double gkRightKm; |
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264 double gkHighKm; |
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265 double heightM; |
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266 |
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267 try { |
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268 stationKm = Double.parseDouble(station) / 1000d; |
8856 | 269 gkRightKm = Double.parseDouble(gkRight.replace(",",".")); |
270 gkHighKm = Double.parseDouble(gkHigh.replace(",",".")); | |
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271 heightM = Double.parseDouble(height.replace(",",".")); |
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272 } |
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273 catch (java.lang.NumberFormatException nfe) { |
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274 log.error("Skipping malformed w80csv line #" + lineNum); |
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275 return; |
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276 } |
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277 |
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278 // New (or first) line. |
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279 if (anchor == null || !anchor.sameStation(stationKm)) { |
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280 anchor = new Anchor(gkRightKm, gkHighKm, heightM, stationKm); |
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281 lastPointGK[0] = gkRightKm; |
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282 lastPointGK[1] = gkHighKm; |
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283 currentLine = new ArrayList<XY>(); |
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284 data.put(stationKm, currentLine); |
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285 currentLine.add(new XY(0d, heightM, 0)); |
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286 try { |
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287 anchorDate = DateGuesser.guessDate(date); |
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288 } |
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289 catch (IllegalArgumentException iae) { |
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290 log.warn("W80CSV: Invalid date '" + date + "'."); |
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291 } |
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292 } |
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293 else { |
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294 addPoint(gkRightKm, gkHighKm, heightM, pointIndex); |
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295 } |
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296 } |
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297 |
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298 |
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299 /** Called when file is fully consumed. */ |
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300 @Override |
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301 protected void finish() { |
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302 log.info("Parsed " + data.size() + " lines"); |
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303 } |
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304 |
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305 } |
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306 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |