Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/Segment.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;
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10
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11 import org.dive4elements.river.model.DischargeTable;
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12 import org.dive4elements.river.model.Gauge;
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13 import org.dive4elements.river.model.River;
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14
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15 import org.dive4elements.river.utils.DoubleUtil;
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16
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17 import java.io.Serializable;
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18
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19 import java.util.ArrayList;
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20 import java.util.Collections;
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21 import java.util.Comparator;
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22 import java.util.List;
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23
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24 import org.apache.log4j.Logger;
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25
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26 /** A Range with values and a reference point. */
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27 public class Segment
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28 implements Serializable
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29 {
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30 private static Logger log = Logger.getLogger(Segment.class);
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31
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32 public static final Comparator<Segment> REF_CMP =
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33 new Comparator<Segment>() {
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34 @Override
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35 public int compare(Segment a, Segment b) {
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36 double d = a.referencePoint - b.referencePoint;
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37 if (d < 0d) return -1;
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38 return d > 0d ? +1 : 0;
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39 }
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40 };
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41
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42 protected double from;
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43 protected double to;
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44 protected double [] values;
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45 protected double [] backup;
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46 protected double referencePoint;
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47
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48 public Segment() {
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49 }
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50
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51 public Segment(double referencePoint) {
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52 this.referencePoint = referencePoint;
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53 }
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54
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55 public Segment(double from, double to, double [] values) {
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56 this.from = from;
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57 this.to = to;
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58 this.values = values;
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59 }
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60
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61 public boolean isUp() {
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62 return from < to;
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63 }
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64
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65 /** Checks whether given km lies inside the to/from bounds of this segment. */
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66 public boolean inside(double km) {
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67 return from < to
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68 ? km >= from && km <= to
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69 : km >= to && km <= from;
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70 }
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71
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72 @Override
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73 public String toString() {
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74 StringBuilder sb = new StringBuilder("Segment: [");
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75 sb.append("from: ").append(from).append("; to: ")
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76 .append(to)
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77 .append("; ref: ").append(referencePoint)
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78 .append("; values: (");
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79 for (int i = 0; i < values.length; ++i) {
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80 if (i > 0) sb.append(", ");
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81 sb.append(values[i]);
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82 }
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83 sb.append(")]");
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84 return sb.toString();
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85 }
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86
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87 public void setFrom(double from) {
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88 this.from = from;
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89 }
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90
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91 public void backup() {
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92 backup = values != null
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93 ? (double [])values.clone()
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94 : null;
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95 }
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96
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97 public double [] getBackup() {
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98 return backup;
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99 }
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100
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101 public double getFrom() {
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102 return from;
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103 }
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104
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105 public void setTo(double to) {
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106 this.to = to;
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107 }
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108
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109 public double getTo() {
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110 return to;
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111 }
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112
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113 public void setValues(double [] values) {
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114 this.values = values;
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115 }
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116
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117 public double [] getValues() {
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118 return values;
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119 }
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120
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121 public int numValues() {
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122 return values.length;
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123 }
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124
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125 public void setReferencePoint(double referencePoint) {
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126 this.referencePoint = referencePoint;
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127 }
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128
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129 public double getReferencePoint() {
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130 return referencePoint;
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131 }
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132
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133 /** Use DoubleUtil to parse Segments. */
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134 public static List<Segment> parseSegments(String input) {
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135
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136 final List<Segment> segments = new ArrayList<Segment>();
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137
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138 DoubleUtil.parseSegments(input, new DoubleUtil.SegmentCallback() {
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139 @Override
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140 public void newSegment(double from, double to, double [] values) {
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141 segments.add(new Segment(from, to, values));
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142 }
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143 });
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144
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145 return segments;
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146 }
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147
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148 public static boolean setReferencePointConvertQ(
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149 List<Segment> segments,
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150 River river,
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151 boolean isQ,
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152 Calculation report
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153 ) {
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154 int numResults = -1;
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155
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156 boolean success = true;
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157
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158 // assign reference points
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159 for (Segment segment: segments) {
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160 Gauge gauge = river.maxOverlap(segment.getFrom(), segment.getTo());
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161
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162 if (gauge == null) {
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163 log.warn("no gauge found. Defaults to mid point.");
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164 segment.setReferencePoint(
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165 0.5*(segment.getFrom()+segment.getTo()));
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166 }
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167 else {
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168 double ref = gauge.getStation().doubleValue();
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169 log.debug(
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170 "reference gauge: " + gauge.getName() +
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171 " (km " + ref + ")");
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172 segment.setReferencePoint(ref);
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173 }
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174
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175 double [] values = segment.values;
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176
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177 if (numResults == -1) {
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178 numResults = values.length;
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179 }
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180 else if (numResults != values.length) {
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181 log.warn("wrong length of values");
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182 return false;
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183 }
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184
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185 // convert to Q if needed
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186 if (!isQ && gauge != null) {
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187
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188 DischargeTable dt = gauge.fetchMasterDischargeTable();
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189
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190 //TODO: Change scale from 100 to 1 immediately after
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191 // discharge table import changed to cm!
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192 double [][] table =
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193 DischargeTables.loadDischargeTableValues(dt, 100);
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194
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195 // need the original values for naming
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196 segment.backup();
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197
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198 for (int i = 0; i < values.length; ++i) {
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199 //TODO: s.o.
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200 double w = values[i]; /* / 100.0; */
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201 double [] qs = DischargeTables.getQsForW(table, w);
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202 if (qs.length == 0) {
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203 log.warn("No Qs found for W = " + values[i]);
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204 report.addProblem("cannot.find.q.for.w", values[i]);
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205 values[i] = Double.NaN;
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206 success = false;
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207 }
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208 else {
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209 values[i] = qs[0];
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210 if (qs.length > 1) {
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211 log.warn(
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212 "More than one Q found for W = " + values[i]);
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213 }
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214 }
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215 }
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216 }
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217 } // for all segments
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218
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219 Collections.sort(segments, Segment.REF_CMP);
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220
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221 return success;
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222 }
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223 }
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224 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org