Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/importer/parsers/W80Parser.java @ 8856:5e38e2924c07 3.2.x

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Fix code style.
author Tom Gottfried <tom@intevation.de>
date Thu, 18 Jan 2018 20:12:01 +0100
parents 9d2e69f971f5
children 0a5239a1e46e
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
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30 import org.apache.log4j.Logger;
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31
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32
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33 /**
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34 * To create cross-sections, generate: Map<double,list<xy>> from files
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35 * in w80 format.
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36 */
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37 public class W80Parser extends LineParser implements CrossSectionParser
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38 {
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39 /** Private log. */
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40 private static Logger log = Logger.getLogger(W80Parser.class);
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41
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42
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43 /** The current line to which add points. */
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44 private List<XY> currentLine;
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45
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46
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47 /** Data collected so far, last element will be currentLine. */
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48 protected Map<Double, List<XY>> data;
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49
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50
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51 /** Anchor to project to. */
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52 private static class Anchor extends Coordinate {
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53
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54 private static final double EPSILON = 1e-5;
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55
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56 private double station;
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57
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58 public Anchor(double x, double y, double z, double station) {
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59 super(x, y, z);
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60 this.station = station;
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61 }
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62
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63 public boolean sameStation(double station) {
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64 return Math.abs(this.station - station) < EPSILON;
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65 }
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66 }
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67
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68
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69 /** Reference point for simple projection. */
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70 private Anchor anchor;
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71
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72
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73 /**
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74 * Reference point for distance calculations, introduced to
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75 * deal with bends in the lines.
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76 * Array has two entrys: first is GK-Right, second GK-High.
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77 */
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78 private double[] lastPointGK;
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79
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80
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81 /** Measurement date of anchor as listed in w80 file. */
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82 private Date anchorDate;
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83
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84
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85 private double distanceToLastPoint(double gkr, double gkh) {
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86 double dx = gkr - lastPointGK[0];
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87 double dy = gkh - lastPointGK[1];
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88 double d = dx*dx + dy*dy;
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89
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90 return Math.sqrt(d);
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91 }
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92
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93
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94 /** Trivial constructor. */
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95 public W80Parser() {
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96 data = new TreeMap<Double, List<XY>>(EpsilonComparator.CMP);
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97 }
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98
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99
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100 /** Get the description of the cross section parsed. */
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101 @Override
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102 public String getDescription() {
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103 return FileTools.removeExtension(getFileName());
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104 }
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105
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106
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107 /** Get the year of this cross sections measurement. */
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108 @Override
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109 public Integer getYear() {
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110 if (anchorDate == null) {
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111 return null;
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112 }
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113 Calendar dateCalendar = Calendar.getInstance();
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114 dateCalendar.setTime(anchorDate);
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115 return dateCalendar.get(Calendar.YEAR);
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116 }
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117
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118
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119 /**
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120 * Return the data parsed.
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121 * @return map of stations (km) to list of points.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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122 */
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123 @Override
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124 public Map<Double, List<XY>> getData() {
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125 return data;
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126 }
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127
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128
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129 public void parseW80s(File root, final Callback callback) {
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130
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diff changeset
131 FileTools.walkTree(root, new FileTools.FileVisitor() {
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132 @Override
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133 public boolean visit(File file) {
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134 if (file.isFile() && file.canRead()
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135 && file.getName().toLowerCase().endsWith(".w80")
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136 && (callback == null || callback.accept(file))) {
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137 reset();
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diff changeset
138 try {
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139 parse(file);
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140 log.info("parsing done");
4728
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141 if (callback != null) {
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142 callback.parsed(W80Parser.this);
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143 }
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144 }
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diff changeset
145 catch (IOException ioe) {
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146 log.error("IOException while parsing file");
4728
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147 return false;
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148 }
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149 }
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150 return true;
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151 }
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152 });
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153 }
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154
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155
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156 /** Called before consuming first line of file. */
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157 public void reset() {
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158 data.clear();
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159 currentLine = new ArrayList<XY>();
4749
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160 anchor = null;
4761
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161 anchorDate = null;
4804
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162 lastPointGK = new double[] {0d,0d};
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163 }
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164
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165
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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166 /**
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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167 * Get the Index of the last cross-section lines point.
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168 * @return last points index, -1 if not available.
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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169 */
4803
94cb955234ab W80Parser: Renamed lastPointIdx() to getLastPointIdx().
Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
170 private int getLastPointIdx() {
4749
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171 if (currentLine == null || currentLine.isEmpty()) {
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
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172 return -1;
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173 }
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174 XY lastPoint = this.currentLine.get(currentLine.size()-1);
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175 return lastPoint.getIndex();
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176 }
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177
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178
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179 private double getLastPointX() {
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180 if (currentLine == null || currentLine.isEmpty()) {
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181 return 0d;
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182 }
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183 XY lastPoint = this.currentLine.get(currentLine.size()-1);
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diff changeset
184 return lastPoint.getX();
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185 }
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186
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diff changeset
187
4749
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diff changeset
188 /**
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parents: 4747
diff changeset
189 * Add a Point (YZ,Index) to the current cross section line.
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diff changeset
190 * @param y The y coordinate of new point.
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191 * @param z The z coordinate of new point.
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diff changeset
192 * @param idx Ignored, the parameter of new point.
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parents: 4747
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193 * @return true if point could been added, false otherwise (e.g. not
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
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diff changeset
194 * parsable y or z values.
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195 */
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196 private boolean addPoint(
5e38e2924c07 Fix code style.
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diff changeset
197 double gkr,
5e38e2924c07 Fix code style.
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diff changeset
198 double gkh,
5e38e2924c07 Fix code style.
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diff changeset
199 double height,
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
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diff changeset
200 String idx
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8200
diff changeset
201 ) {
4804
e9566109bd5b W80Parser: Implement linear cascading distance measurements.
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parents: 4803
diff changeset
202 // Calculate distance between this and lst point (add distances).
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parents: 4803
diff changeset
203 double d = distanceToLastPoint(gkr, gkh);
e9566109bd5b W80Parser: Implement linear cascading distance measurements.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4803
diff changeset
204 double totalX = getLastPointX() + d;
4751
ee6c0f246b28 W80Parser: Added TODO/comment.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4750
diff changeset
205
4749
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
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diff changeset
206 // We ignore idx, and increment instead.
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4747
diff changeset
207 int index;
4803
94cb955234ab W80Parser: Renamed lastPointIdx() to getLastPointIdx().
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4802
diff changeset
208 int lastPointIdx = getLastPointIdx();
4749
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4747
diff changeset
209 if (lastPointIdx <= 0) {
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4747
diff changeset
210 index = 1;
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4747
diff changeset
211 } else {
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4747
diff changeset
212 index = lastPointIdx + 1;
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4747
diff changeset
213 }
3028037c6293 W80Parser: addPoint and lastIdx functions to add a point and find last points index.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4747
diff changeset
214
4804
e9566109bd5b W80Parser: Implement linear cascading distance measurements.
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diff changeset
215 this.lastPointGK[0] = gkr;
e9566109bd5b W80Parser: Implement linear cascading distance measurements.
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parents: 4803
diff changeset
216 this.lastPointGK[1] = gkh;
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parents: 4803
diff changeset
217 currentLine.add(new XY(totalX, height/1000d, index));
4749
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diff changeset
218 return true;
4728
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diff changeset
219 }
ccae8b43e527 Initial empty version of W80Parser.
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parents:
diff changeset
220
ccae8b43e527 Initial empty version of W80Parser.
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parents:
diff changeset
221
ccae8b43e527 Initial empty version of W80Parser.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
222 /**
4755
ba8c2147b4ff W80Parser: Correct c&p stuff in comments (da66->w80).
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4751
diff changeset
223 * Called for each line. Try to extract info from a w80 line.
4728
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parents:
diff changeset
224 */
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parents:
diff changeset
225 @Override
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
226 protected void handleLine(int lineNum, String line) {
8856
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parents: 8200
diff changeset
227 // The 'shore' field shows which side of the river
5e38e2924c07 Fix code style.
Tom Gottfried <tom@intevation.de>
parents: 8200
diff changeset
228 // the shore is measured.
4757
e965593eee57 W80Parser: Whitespace-cosmetics and comment.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4756
diff changeset
229 // Therefore, the points have to be added in the correct order (also
e965593eee57 W80Parser: Whitespace-cosmetics and comment.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4756
diff changeset
230 // because later distances are calculated which cannot be
e965593eee57 W80Parser: Whitespace-cosmetics and comment.
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parents: 4756
diff changeset
231 // negative.
4728
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parents:
diff changeset
232 String pointId = line.substring(0,20);
4758
4db3a1509e90 W80Parser: Respect (ignore) 'shore' field of w80 files.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4757
diff changeset
233 String station = line.substring(9,15);
4804
e9566109bd5b W80Parser: Implement linear cascading distance measurements.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4803
diff changeset
234 String shore = line.substring(15,16);
4751
ee6c0f246b28 W80Parser: Added TODO/comment.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4750
diff changeset
235 // TODO: There is 'station' and a 'shore'-code behind.
ee6c0f246b28 W80Parser: Added TODO/comment.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4750
diff changeset
236 // 1 = left, 2 = right. none = middle
4804
e9566109bd5b W80Parser: Implement linear cascading distance measurements.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4803
diff changeset
237 String pointIndex = line.substring(16,21);
4750
60398ab6129a W80Parser: Actually add points while parsing w80 file.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4749
diff changeset
238 // For GK, first seven digits are of interest.
4728
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
239 String gkRight = line.substring(20,30);
ccae8b43e527 Initial empty version of W80Parser.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
240 String gkHigh = line.substring(30,40);
ccae8b43e527 Initial empty version of W80Parser.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
241 String date = line.substring(40,46);
4759
35f4ece9562e W80Parser: Comment code that is not (yet?) used by FLYS.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4758
diff changeset
242 /* Fields not (yet?) of interest for FLYS
4728
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parents:
diff changeset
243 String locType = line.substring(46,47);
4759
35f4ece9562e W80Parser: Comment code that is not (yet?) used by FLYS.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4758
diff changeset
244 */
4728
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Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
245 String height = line.substring(47,54);
ccae8b43e527 Initial empty version of W80Parser.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
246 String dateH = line.substring(54,60);
4759
35f4ece9562e W80Parser: Comment code that is not (yet?) used by FLYS.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents: 4758
diff changeset
247 /* Fields not (yet?) of interest for FLYS
4728
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parents:
diff changeset
248 String typeH = line.substring(60,61);
ccae8b43e527 Initial empty version of W80Parser.
Felix Wolfsteller <felix.wolfsteller@intevation.de>
parents:
diff changeset
249 String kindH = line.substring(61,64);
4759
35f4ece9562e W80Parser: Comment code that is not (yet?) used by FLYS.
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parents: 4758
diff changeset
250 */
4728
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parents:
diff changeset
251 String dateDec = line.substring(64,70);
4759
35f4ece9562e W80Parser: Comment code that is not (yet?) used by FLYS.
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parents: 4758
diff changeset
252 /* Fields not (yet?) of interest for FLYS
4728
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253 String note = line.substring(70,78);
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254 String actual = line.substring(78);
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255 */
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256
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257 double stationKm = Double.parseDouble(station) / 1000d;
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258 double gkRightKm = Double.parseDouble(gkRight.substring(0,7));
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259 double gkHighKm = Double.parseDouble(gkHigh.substring(0,7));
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260 double heightM = Double.parseDouble(height);
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261
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262 // New (or first) line.
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263 if (anchor == null || !anchor.sameStation(stationKm)) {
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264 anchor = new Anchor(gkRightKm, gkHighKm, heightM, stationKm);
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265 lastPointGK[0] = gkRightKm;
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266 lastPointGK[1] = gkHighKm;
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267 currentLine = new ArrayList<XY>();
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268 data.put(stationKm, currentLine);
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269 currentLine.add(new XY(0d, heightM, 0));
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270 try {
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271 anchorDate = DateGuesser.guessDate(date);
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272 }
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273 catch (IllegalArgumentException iae) {
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274 log.warn("W80: Invalid date '" + date + "'.");
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275 }
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276 }
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277 else {
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278 addPoint(gkRightKm, gkHighKm, heightM, pointIndex);
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279 }
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280 }
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281
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282
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283 /** Called when file is fully consumed. */
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284 @Override
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285 protected void finish() {
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286 log.info("Parsed " + data.size() + " lines");
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287 }
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288
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289
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290 /** Parses files given as arguments. */
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291 public static void main(String [] args) {
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292
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293 W80Parser parser = new W80Parser();
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294
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295 log.warn("Start parsing files.");
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296 for (String arg: args) {
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297 log.warn("Parsing a file.");
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298 parser.parseW80s(new File(arg), null);
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299 }
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300 log.error("Finished parsing files.");
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301 }
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302 }
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303 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org