Mercurial > dive4elements > river

annotate artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/common/GaugeMainValueFinder.java @ 9206:b38be7ea53e2

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Fixed approx char restaurated, findValue condition for zone name corrected
author mschaefer
date Mon, 02 Jul 2018 19:02:24 +0200
parents b4402594213b
children d9fda7af24ca
rev   line source
9202
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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.common;
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11
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12 import java.util.Map.Entry;
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13 import java.util.NavigableMap;
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14 import java.util.TreeMap;
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15
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16 import org.dive4elements.river.artifacts.model.Calculation;
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17 import org.dive4elements.river.model.Gauge;
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18 import org.dive4elements.river.model.MainValue;
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19 import org.dive4elements.river.model.MainValueType.MainValueTypeKey;
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20
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21 /**
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22 * Loading the main values of a gauge to find relative positions of a value and build a corresponding zone name
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23 *
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24 * @author Matthias Schäfer
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25 *
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26 */
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27 public final class GaugeMainValueFinder {
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28
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29 /***** FIELDS *****/
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30
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31 // private static Logger log = Logger.getLogger(GaugeMainValueNameFinder.class);
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32
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33 private final Gauge gauge;
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34
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35 private Calculation problems;
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36
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37 private final NavigableMap<Double, MainValue> mainValues;
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38
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39 private final MainValueTypeKey keyType;
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40
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41 private final String approxPrefix = "\u2248";
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42
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43 private Entry<Double, MainValue> foundCeiling;
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44
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45 private Entry<Double, MainValue> foundFloor;
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46
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47 private double foundRelativeDistance;
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48
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49
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50 /***** CONSTRUCTORS *****/
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51
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52 private GaugeMainValueFinder(final MainValueTypeKey keyType, final Gauge gauge, final Calculation problems) {
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53 this.gauge = gauge;
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54 this.problems = problems;
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55 this.keyType = keyType;
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56 this.mainValues = new TreeMap<>();
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57 for (final MainValue mainValue : MainValue.getValuesOfGaugeAndType(gauge, keyType))
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58 this.mainValues.put(Double.valueOf(mainValue.getValue().doubleValue()), mainValue);
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59 if (this.mainValues.isEmpty() && (this.problems != null)) {
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60 this.problems.addProblem("gauge_main_values.missing", gauge.getName());
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61 // Report only once
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62 this.problems = null;
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63 }
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64 }
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65
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66
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67 /***** METHODS *****/
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68
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69 /**
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70 * Loads the the main values table of a type and a gauge (GAUGE.sta)
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71 *
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72 * @return The main values finder of a type and a gauge, or null
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73 */
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74 public static GaugeMainValueFinder loadValues(final MainValueTypeKey type, final Gauge gauge, final Calculation problems) {
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75 return new GaugeMainValueFinder(type, gauge, problems);
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76 }
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77
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78 /**
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79 * If this provider may return valid data at all.
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80 */
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81 public boolean isValid() {
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82 return (this.mainValues != null);
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83 }
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84
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85 /**
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86 * Searches the main value zone for a value, and returns a textual description of the zone
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87 * (name for an exact match, circa expression for +/- 10% match, less-than/between/greater-than expression otherwise)
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88 */
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89 public String findZoneName(final double value) {
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90 this.findValue(value);
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91 if (Double.isNaN(this.foundRelativeDistance))
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92 return "";
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93
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94 // Clearly below or just (max. 10%) below lowest named value
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95 if (this.foundFloor == null) {
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96 if (Double.isInfinite(this.foundRelativeDistance))
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97 return "<" + this.foundCeiling.getValue().getMainValue().getName();
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98 else
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99 return this.approxPrefix + this.foundCeiling.getValue().getMainValue().getName();
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100 }
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101
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102 // Clearly above or just (max. 10%) above highest named value
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103 if (this.foundCeiling == null) {
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104 if (Double.isInfinite(this.foundRelativeDistance))
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105 return ">" + this.foundFloor.getValue().getMainValue().getName();
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106 else
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107 return this.approxPrefix + this.foundFloor.getValue().getMainValue().getName();
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108 }
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109
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110 // Exact match
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111 if (this.mainValues.containsKey(Double.valueOf(value)))
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112 return this.mainValues.get(Double.valueOf(value)).getMainValue().getName();
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113
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114 // Near (10%) one of the borders of a zone interval, or clearly within a zone
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115 if (this.foundRelativeDistance <= 0.001)
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116 return this.foundFloor.getValue().getMainValue().getName();
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117 else if (this.foundRelativeDistance <= 0.1)
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118 return this.approxPrefix + this.foundFloor.getValue().getMainValue().getName();
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119 else if (this.foundRelativeDistance >= 0.9)
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120 return this.approxPrefix + this.foundCeiling.getValue().getMainValue().getName();
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121 else
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122 return this.foundFloor.getValue().getMainValue().getName() + "-" + this.foundCeiling.getValue().getMainValue().getName();
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123 }
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124
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125 /**
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126 * Searches the main value zone for a value, and returns the zone name for an exact match, the nomatchReturn otherwise
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127 */
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128 public String findExactZoneName(final double value, final String noMatchReturn) {
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129 this.findValue(value);
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130 if ((this.foundFloor != null) && (this.foundFloor.getKey() == this.foundCeiling.getKey()))
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131 return this.foundFloor.getValue().getMainValue().getName();
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132 else
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133 return noMatchReturn;
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134 }
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135
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136 /**
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137 * Searches the interval of a main value and its relative distance from the lower value
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138 */
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139 public boolean findValue(final double value) {
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140 this.foundFloor = null;
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141 this.foundCeiling = null;
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142 this.foundRelativeDistance = Double.NaN;
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143 if (!this.isValid())
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144 return false;
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145 if (Double.isNaN(value))
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146 return false;
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147
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148 // Clearly below or just (max. 10%) below lowest named value
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149 this.foundFloor = this.mainValues.floorEntry(Double.valueOf(value));
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150 if (this.foundFloor == null) {
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151 this.foundCeiling = this.mainValues.firstEntry();
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152 if (value >= this.mainValues.firstKey().doubleValue() * 0.9) {
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153 this.foundRelativeDistance = 0.9;
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154 return true;
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155 }
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156 else {
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157 this.foundRelativeDistance = Double.NEGATIVE_INFINITY;
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158 return false;
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159 }
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160 }
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161
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162 // Clearly above or just (max. 10%) above highest named value
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163 this.foundCeiling = this.mainValues.ceilingEntry(Double.valueOf(value));
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164 if (this.foundCeiling == null) {
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165 if (value <= this.mainValues.lastKey().doubleValue() * 1.1) {
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166 this.foundRelativeDistance = 0.1;
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167 return true;
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168 }
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169 else {
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170 this.foundRelativeDistance = Double.POSITIVE_INFINITY;
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171 return false;
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172 }
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173 }
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174
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175 // Exact match or within an interval
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176 if (this.foundCeiling.getKey() == this.foundFloor.getKey())
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177 this.foundRelativeDistance = 0.0;
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178 else
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179 this.foundRelativeDistance = (value - this.foundFloor.getKey().doubleValue())
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180 / (this.foundCeiling.getKey().doubleValue() - this.foundFloor.getKey().doubleValue());
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181 return true;
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182 }
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183
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184 /**
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185 * Floor value of the last findValue
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186 */
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187 public MainValue getFoundFloorValue() {
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188 if (this.foundFloor != null)
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189 return this.foundFloor.getValue();
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190 else
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191 return null;
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192 }
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193
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194 /**
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195 * Ceiling value of the last findValue
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196 */
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197 public MainValue getFoundCeilingValue() {
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198 if (this.foundCeiling != null)
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199 return this.foundCeiling.getValue();
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200 else
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201 return null;
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202 }
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203
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204 /**
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205 * Relative distance of the last findValue
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206 */
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207 public double getFoundRelativeDistance() {
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208 return this.getFoundRelativeDistance();
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209 }
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210
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211 /**
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212 * Searches a pair of zone names and return the a value within the interval by a relative distance, or NaN
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213 */
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214 public double findValue(final String floorZone, final String ceilingZone, final double relativeDistance) {
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215 this.foundFloor = null;
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216 this.foundCeiling = null;
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217 this.foundRelativeDistance = relativeDistance;
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218 for (final Entry<Double, MainValue> mainValue : this.mainValues.entrySet()) {
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219 if (mainValue.getValue().getMainValue().getName().equalsIgnoreCase(floorZone)) {
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220 this.foundFloor = mainValue;
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221 break;
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222 }
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223 }
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224 if (this.foundFloor == null)
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225 return Double.NaN;
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226 if (floorZone.equalsIgnoreCase(ceilingZone))
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227 return this.foundFloor.getKey().doubleValue();
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228 for (final Entry<Double, MainValue> mainValue : this.mainValues.entrySet()) {
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229 if (mainValue.getValue().getMainValue().getName().equalsIgnoreCase(ceilingZone)) {
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230 this.foundCeiling = mainValue;
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231 break;
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232 }
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233 }
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234 if (this.foundCeiling == null)
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235 return Double.NaN;
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236 else
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237 return (this.foundCeiling.getKey().doubleValue() - this.foundFloor.getKey().doubleValue()) * this.foundRelativeDistance
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238 + this.foundFloor.getKey().doubleValue();
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239 }
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240 }
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