Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/tkhstate/BedHeightsFinder.java @ 8915:d9dbf0b74bc2

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Refaktoring of flow depth calculation, extracting tkh part. First implementation of tkh calculation.
author gernotbelger
date Wed, 28 Feb 2018 17:27:15 +0100
parents
children 11bf13cf0463
rev   line source
8915
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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 package org.dive4elements.river.artifacts.sinfo.tkhstate;
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11
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12 import java.util.ArrayList;
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13 import java.util.Collection;
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14 import java.util.Collections;
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15 import java.util.List;
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16 import java.util.Map.Entry;
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17 import java.util.NavigableMap;
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18 import java.util.TreeMap;
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19
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20 import org.apache.commons.lang.math.DoubleRange;
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21 import org.dive4elements.river.artifacts.math.Linear;
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22 import org.dive4elements.river.artifacts.model.Calculation;
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23 import org.dive4elements.river.artifacts.sinfo.util.BedHeightInfo;
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24 import org.dive4elements.river.model.BedHeight;
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25 import org.dive4elements.river.model.BedHeightValue;
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26 import org.dive4elements.river.model.River;
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27
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28 /**
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29 * Provides bed heigts for vcarious calculations.
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30 *
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31 * @author Gernot Belger
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32 */
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33 public final class BedHeightsFinder {
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34
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35 private final BedHeightInfo info;
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36
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37 private final NavigableMap<Double, BedHeightValue> values;
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38
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39 /**
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40 * Create specific bed heights used in tkh-calculation
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41 *
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42 * @param problems
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43 */
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44 public static Collection<BedHeightsFinder> createTkhBedHeights(final River river, final Calculation problems, final DoubleRange range) {
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45 // FIXME: determine relevant bed-heights by river: read from some configuration file
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46 // '3' is already the right one for demo-model == '"DGM-2004_Epoche-2-SOBEK"'
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47 final int bedheightId = 3;
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48
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49 final Collection<BedHeight> bedHeights = Collections.singletonList(BedHeight.getBedHeightById(bedheightId));
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50
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51 // TODO: check for overlapping ranges... and provide a warning message, else we get problems later
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52
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53 final List<BedHeightsFinder> result = new ArrayList<>(bedHeights.size());
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54
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55 for (final BedHeight bedHeight : bedHeights) {
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56 result.add(createBedHeights(bedHeight, range));
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57 }
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58
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59 return result;
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60 }
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61
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62 /**
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63 * Creates a {@link BedHeightsFinder} for a dataset from the database, specified by its id.
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64 *
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65 * @return <code>null</code> if no bed height with the given id exists.
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66 */
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67 public static BedHeightsFinder forId(final int id, final DoubleRange range) {
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68
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69 final BedHeight bedHeight = BedHeight.getBedHeightById(id);
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70 if (bedHeight == null)
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71 return null;
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72
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73 return BedHeightsFinder.createBedHeights(bedHeight, range);
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74 }
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75
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76 /**
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77 * Create a finder for a given bed height.
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78 *
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79 * @param range
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80 */
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81 private static BedHeightsFinder createBedHeights(final BedHeight bedHeight, final DoubleRange range) {
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82
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83 // FIXME: sort by station, but in what direction?
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84 // FIXME: using river.getKmUp()?
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85 final NavigableMap<Double, BedHeightValue> values = new TreeMap<>();
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86
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87 for (final BedHeightValue bedHeightValue : bedHeight.getValues()) {
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88 final Double station = bedHeightValue.getStation();
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89 if (station != null && range.containsDouble(station)) {
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90
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91 if (bedHeightValue.getHeight() != null)
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92 values.put(station, bedHeightValue);
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93 }
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94 }
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95
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96 final BedHeightInfo info = BedHeightInfo.from(bedHeight);
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97
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98 return new BedHeightsFinder(info, values);
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99 }
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100
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101 private BedHeightsFinder(final BedHeightInfo info, final NavigableMap<Double, BedHeightValue> values) {
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102 this.info = info;
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103 this.values = values;
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104 }
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105
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106 public BedHeightInfo getInfo() {
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107 return this.info;
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108 }
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109
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110 public Collection<Double> getStations() {
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111 return this.values.keySet();
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112 }
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113
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114 public double getMeanBedHeight(final double km) {
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115
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116 if (this.values.containsKey(km))
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117 return this.values.get(km).getHeight();
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118
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119 final Entry<Double, BedHeightValue> floorEntry = this.values.floorEntry(km);
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120 final Entry<Double, BedHeightValue> ceilingEntry = this.values.ceilingEntry(km);
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121
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122 if (floorEntry == null || ceilingEntry == null)
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123 return Double.NaN;
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124
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125 final double floorKm = floorEntry.getKey();
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126 final double floorHeight = floorEntry.getValue().getHeight();
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127 final double ceilKm = ceilingEntry.getKey();
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128 final double ceilHeight = ceilingEntry.getValue().getHeight();
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129
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130 // FIXME: check if we always want that...
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131
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132 return Linear.linear(km, floorKm, ceilKm, floorHeight, ceilHeight);
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133 }
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134 }
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