Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/RelativePointFacet.java @ 8145:52504fc2cd58
Calculate all single years in given interval but only once.
author | Tom Gottfried <tom@intevation.de> |
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date | Wed, 27 Aug 2014 15:01:54 +0200 |
parents | af13ceeba52a |
children | e4606eae8ea5 |
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.artifacts.model; |
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10 |
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11 import java.util.List; |
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12 import java.awt.geom.Point2D; |
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13 |
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14 import org.apache.log4j.Logger; |
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15 |
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16 import org.dive4elements.artifacts.Artifact; |
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17 import org.dive4elements.artifacts.CallContext; |
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18 import org.dive4elements.artifacts.DataProvider; |
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19 |
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20 import org.dive4elements.river.artifacts.StaticWKmsArtifact; |
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21 import org.dive4elements.river.artifacts.StaticWQKmsArtifact; |
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22 import org.dive4elements.river.artifacts.math.Linear; |
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23 |
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24 /** |
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25 * Facet to access a point. |
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26 */ |
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27 public class RelativePointFacet |
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28 extends BlackboardDataFacet |
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29 implements FacetTypes { |
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30 |
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31 /** Own logger. */ |
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32 private static Logger logger = Logger.getLogger(RelativePointFacet.class); |
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33 |
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34 /** Trivial Constructor. */ |
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35 public RelativePointFacet(String description) { |
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36 this(RELATIVE_POINT, description); |
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37 } |
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38 |
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39 |
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40 public RelativePointFacet(String name, String description) { |
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41 this.name = name; |
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42 this.description = description; |
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43 this.index = 0; |
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44 } |
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45 |
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46 |
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47 protected Point2D calculateDurationCurvePoint(CallContext context, |
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48 WKms wKms) |
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49 { |
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50 // TODO here and in reference curve calc: Do warn if more than 1 |
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51 // provider found or (way better) handle it. |
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52 Object wqdays = null; |
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53 double km = 0d; |
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54 List<DataProvider> providers = context. |
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55 getDataProvider(DurationCurveFacet.BB_DURATIONCURVE); |
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56 if (providers.size() < 1) { |
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57 logger.warn("Could not find durationcurve data provider."); |
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58 } |
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59 else { |
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60 wqdays = providers.get(0).provideData( |
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61 DurationCurveFacet.BB_DURATIONCURVE, |
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62 null, |
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63 context); |
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64 } |
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65 List<DataProvider> kmproviders = context. |
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66 getDataProvider(DurationCurveFacet.BB_DURATIONCURVE_KM); |
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67 if (kmproviders.size() < 1) { |
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68 logger.warn("Could not find durationcurve.km data provider."); |
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69 } |
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70 else { |
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71 logger.debug("Found durationcurve.km data provider."); |
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72 String dckm = providers.get(0).provideData( |
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73 DurationCurveFacet.BB_DURATIONCURVE_KM, |
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74 null, |
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75 context).toString(); |
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76 km = Double.valueOf(dckm); |
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77 } |
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78 |
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79 if (wqdays != null) { |
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80 // Which W at this km? |
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81 double w = StaticWKmsArtifact.getWAtKmLin(wKms, km); |
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82 if (w == -1) { |
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83 logger.warn("w is -1, already bad sign!"); |
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84 } |
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85 // Where is this W passed by in the wq-curve? |
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86 WQDay wqday = (WQDay) wqdays; |
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87 // Doing a linear Day Of KM. |
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88 int idx = 0; |
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89 boolean wIncreases = wqday.getW(0) < wqday.getW(wqday.size()-1); |
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90 if (wIncreases) { |
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91 while (idx < wqday.size() && wqday.getW(idx) < w) { |
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92 idx++; |
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93 } |
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94 } |
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95 else { |
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96 idx = wqday.size() -1; |
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97 while (idx > 0 && wqday.getW(idx) > w) { |
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98 idx--; |
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99 } |
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100 } |
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101 |
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102 double day = 0d; |
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103 int mod = (wIncreases) ? -1 : +1; |
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104 if (idx != 0 && idx <= wqday.size()-1) { |
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105 day = Linear.linear(w, wqday.getW(idx+mod), wqday.getW(idx), |
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106 wqday.getDay(idx+mod), wqday.getDay(idx)); |
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107 } |
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108 |
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109 return new Point2D.Double((double) day, w); |
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110 } |
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111 logger.warn("not wqkms / w / day found"); |
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112 // TODO better signal failure. |
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113 return new Point2D.Double(0d, 0d); |
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114 } |
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115 |
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116 |
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117 /** |
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118 * Calculate a reference curve point, that is, a point made of |
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119 * the Ws from start and end km param of the reference curve. |
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120 */ |
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121 public Point2D calculateReferenceCurvePoint(CallContext context, |
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122 WKms wKms) { |
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123 |
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124 List<DataProvider> providers = context. |
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125 getDataProvider(ReferenceCurveFacet.BB_REFERENCECURVE_STARTKM); |
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126 if (providers.size() < 1) { |
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127 logger.warn("Could not find reference curve startkm data provider."); |
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128 } |
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129 |
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130 Double start = (Double) providers.get(0). |
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131 provideData(ReferenceCurveFacet.BB_REFERENCECURVE_STARTKM, null, context); |
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132 |
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133 providers = context. |
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134 getDataProvider(ReferenceCurveFacet.BB_REFERENCECURVE_ENDKMS); |
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135 if (providers.size() < 1) { |
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136 logger.warn("Could not find reference curve endkms data provider."); |
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137 } |
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138 double[] ends = (double[]) providers.get(0). |
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139 provideData(ReferenceCurveFacet.BB_REFERENCECURVE_ENDKMS, null, context); |
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140 |
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141 logger.debug("Got s " + start + " e " + ends); |
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142 |
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143 double startW = StaticWKmsArtifact.getWAtKmLin(wKms, start.doubleValue()); |
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144 // TODO handle multiple ends. |
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145 double endW = StaticWKmsArtifact.getWAtKmLin(wKms, ends[0]); |
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146 logger.debug("Gotw s " + startW + " e " + endW); |
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147 return new Point2D.Double(startW, endW); |
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148 } |
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149 |
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150 |
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151 /** |
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152 * Returns the data this facet requires. |
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153 * |
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154 * @param artifact the owner artifact. |
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155 * @param context the CallContext (ignored). |
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156 * |
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157 * @return the data. |
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158 */ |
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159 @Override |
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160 public Object getData(Artifact artifact, CallContext context) { |
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161 WKms wKms = null; |
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162 if (artifact instanceof StaticWKmsArtifact) { |
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163 wKms = ((StaticWKmsArtifact) artifact).getWKms(0); |
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164 } |
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165 else if (artifact instanceof StaticWQKmsArtifact) { |
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166 wKms = ((StaticWQKmsArtifact) artifact).getWQKms(); |
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167 } |
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168 else { |
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169 logger.error("Cannot handle Artifact to create relative point."); |
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170 return null; |
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171 } |
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172 |
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173 // Find out whether we live in a duration curve context, there we would |
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174 // provide only a single point. |
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175 |
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176 if (context.getDataProvider( |
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177 DurationCurveFacet.BB_DURATIONCURVE_KM).size() > 0) { |
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178 return calculateDurationCurvePoint(context, wKms); |
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179 } |
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180 else if (context.getDataProvider( |
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181 ReferenceCurveFacet.BB_REFERENCECURVE_STARTKM).size() > 0) { |
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182 return calculateReferenceCurvePoint(context, wKms); |
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183 } |
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184 |
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185 // TODO better signal failure. |
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186 return new Point2D.Double(0d, 0d); |
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187 } |
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188 |
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189 |
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190 /** |
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191 * Create a deep copy of this Facet. |
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192 * @return a deep copy. |
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193 */ |
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194 @Override |
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195 public RelativePointFacet deepCopy() { |
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196 RelativePointFacet copy = new RelativePointFacet(description); |
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197 copy.set(this); |
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198 return copy; |
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199 } |
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200 } |
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201 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |