Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/bundu/bezugswst/ChannelFinder.java @ 9636:ac41551a8e4d

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Bundu/Bzws: Error message for missing channel/year, Nachtrag Pos. 20: import of two levels of infrastructure types
author mschaefer
date Mon, 11 Nov 2019 16:29:36 +0100
parents d194c5b24bf8
children
rev   line source
9432
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10
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11 package org.dive4elements.river.artifacts.bundu.bezugswst;
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12
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13 import java.util.Map.Entry;
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14 import java.util.NavigableMap;
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15 import java.util.TreeMap;
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16
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17 import org.dive4elements.river.artifacts.math.Linear;
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18 import org.dive4elements.river.artifacts.model.Calculation;
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19 import org.dive4elements.river.model.River;
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20 import org.dive4elements.river.model.sinfo.Channel;
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21 import org.dive4elements.river.model.sinfo.ChannelValue;
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22
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23 /**
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24 * Provides channel depth and height of a river
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25 *
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26 * @author Matthias Schäfer
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27 */
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28 public final class ChannelFinder {
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29
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30 /***** TYPES *****/
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31
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32 public enum ChannelValueType {
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33 depth {
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34 @Override
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35 public Double getValue(final ChannelValue channelValue) {
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36 return channelValue.getDepth();
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37 }
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38 },
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39 width {
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40 @Override
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41 public Double getValue(final ChannelValue channelValue) {
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42 return channelValue.getWidth();
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43 }
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44 };
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45
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46 public abstract Double getValue(final ChannelValue channelValue);
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47 }
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48
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49 /***** FIELDS *****/
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50
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51 // private static Logger log = Logger.getLogger(ChannelFinder.class);
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52
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53 private static double MAX_DISTANCE_KM = 1;
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54
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55 private final NavigableMap<Double, ChannelValue> values = new TreeMap<>();
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56
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57 private Calculation problems;
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58
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59
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60 /***** CONSTRUCTORS *****/
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61
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62 private ChannelFinder(final Calculation problems, final Channel channel) {
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63
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64 this.problems = problems;
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65
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66 for (final ChannelValue v : channel.getValues()) {
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67 this.values.put(v.getStation(), v);
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68 }
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69 }
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70
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71 /***** METHODS *****/
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72
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73 /**
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74 * Loads the channel values for a river and year
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75 *
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76 * @return Whether the load has been successful
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77 */
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78 public static ChannelFinder loadValues(final Calculation problems, final River river, final int year) {
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79 final Channel channel = Channel.getSeries(river, year);
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80 if (channel != null)
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81 return new ChannelFinder(problems, channel);
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82
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83 problems.addProblem("bundu.channelfinder.empty");
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84 return null;
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85 }
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86
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87
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88 /***** METHODS *****/
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89
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90 /**
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91 * Searches the channel depth of a station
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92 */
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93 public double getDepth(final double station) {
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94 final double value = interpolateChannel(station, ChannelValueType.depth);
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95 if (Double.isNaN(value))
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96 reportProblem(station);
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97 return value;
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98 }
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99
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100 /**
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101 * Searches the channel width of a station
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102 */
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103 public double getWidth(final double station) {
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104 final double value = interpolateChannel(station, ChannelValueType.width);
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105 if (Double.isNaN(value))
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106 reportProblem(station);
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107 return value;
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108 }
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109
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110 /**
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111 * Searches and interpolates a channel value for a km
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112 */
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113 private double interpolateChannel(final double km, final ChannelValueType type) {
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114
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115 if (this.values.containsKey(km)) {
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116 final Double value = type.getValue(this.values.get(km));
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117 return (value == null) ? Double.NaN : value.doubleValue();
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118 }
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119
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120 final Entry<Double, ChannelValue> floorEntry = this.values.floorEntry(km);
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121 final Entry<Double, ChannelValue> ceilingEntry = this.values.ceilingEntry(km);
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122
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123 if ((floorEntry == null) || (ceilingEntry == null))
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124 return Double.NaN;
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125
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126 final double floorKm = floorEntry.getKey().doubleValue();
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127 final double ceilKm = ceilingEntry.getKey().doubleValue();
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128
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129 /* report once if the interpolation distance exceeds 1000m */
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130 if ((Math.abs(floorKm - ceilKm) > MAX_DISTANCE_KM) && (this.problems != null)) {
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131 this.problems.addProblem(km, "linearInterpolator.maxdistance", MAX_DISTANCE_KM * 1000);
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132 this.problems = null;
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133 return Double.NaN;
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134 }
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135
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136 final Double floorHeight = type.getValue(floorEntry.getValue());
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137 final Double ceilingHeight = type.getValue(ceilingEntry.getValue());
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138
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139 if (floorHeight == null || ceilingHeight == null)
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140 return Double.NaN;
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141
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142 return Linear.linear(km, floorKm, ceilKm, floorHeight, ceilingHeight);
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143 }
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144
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145 private void reportProblem(final double km) {
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146
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147 if (this.problems == null)
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148 return;
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149
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150 this.problems.addProblem(km, "channelfinder.missing");
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151
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152 // report problem only once
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153 this.problems = null;
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154 }
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155 }
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