svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / rendering / legend / AbstractIntervalLegend.java @ 23750
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1 | 21200 | vcaballero | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | |||
42 | /* CVS MESSAGES:
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43 | *
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44 | * $Id: AbstractIntervalLegend.java 21144 2008-06-03 15:47:31Z vcaballero $
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45 | * $Log$
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46 | * Revision 1.12 2007-09-19 16:25:39 jaume
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47 | * ReadExpansionFileException removed from this context and removed unnecessary imports
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48 | *
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49 | * Revision 1.11 2007/09/10 15:47:11 jaume
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50 | * *** empty log message ***
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51 | *
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52 | * Revision 1.10 2007/08/03 09:22:08 jaume
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53 | * refactored class names
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54 | *
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55 | * Revision 1.9 2007/08/02 10:19:03 jvidal
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56 | * implements IPersistance
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57 | *
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58 | * Revision 1.8 2007/08/01 11:45:59 jaume
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59 | * passing general tests (drawing test yet missing)
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60 | *
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61 | * Revision 1.7 2007/05/28 15:36:42 jaume
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62 | * *** empty log message ***
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63 | *
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64 | * Revision 1.6 2007/05/17 09:32:06 jaume
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65 | * *** empty log message ***
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66 | *
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67 | * Revision 1.5 2007/05/10 14:13:36 jaume
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68 | * *** empty log message ***
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69 | *
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70 | * Revision 1.4 2007/05/10 09:44:08 jaume
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71 | * Refactored legend interface names
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72 | *
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73 | * Revision 1.3 2007/03/27 09:28:40 jaume
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74 | * *** empty log message ***
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75 | *
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76 | * Revision 1.2 2007/03/09 11:20:56 jaume
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77 | * Advanced symbology (start committing)
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78 | *
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79 | * Revision 1.1.2.2 2007/02/15 16:23:44 jaume
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80 | * *** empty log message ***
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81 | *
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82 | * Revision 1.1.2.1 2007/02/13 16:19:19 jaume
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83 | * graduated symbol legends (start commiting)
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84 | *
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85 | *
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86 | */
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87 | package org.gvsig.fmap.mapcontext.rendering.legend; |
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88 | |||
89 | import java.util.ArrayList; |
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90 | import java.util.Comparator; |
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91 | import java.util.Date; |
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92 | import java.util.Iterator; |
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93 | import java.util.TreeMap; |
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94 | |||
95 | import org.apache.log4j.Logger; |
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96 | 23750 | jjdelcerro | import org.gvsig.fmap.data.exceptions.ReadException; |
97 | 22360 | jmvivo | import org.gvsig.fmap.data.feature.Feature; |
98 | import org.gvsig.fmap.data.feature.FeatureID; |
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99 | import org.gvsig.fmap.data.feature.FeatureStore; |
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100 | import org.gvsig.fmap.data.feature.FeatureType; |
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101 | 21200 | vcaballero | import org.gvsig.fmap.mapcontext.Messages; |
102 | import org.gvsig.fmap.mapcontext.exceptions.LegendLayerException; |
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103 | import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect; |
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104 | import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
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105 | import org.gvsig.fmap.mapcontext.rendering.symbols.SymbologyFactory; |
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106 | |||
107 | |||
108 | public abstract class AbstractIntervalLegend extends AbstractClassifiedVectorLegend implements IVectorialIntervalLegend{ |
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109 | protected int shapeType; |
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110 | |||
111 | public static final int EQUAL_INTERVALS = 0; |
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112 | public static final int NATURAL_INTERVALS = 1; |
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113 | public static final int QUANTILE_INTERVALS = 2; |
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114 | 22506 | vcaballero | protected TreeMap symbols = new TreeMap //<Object, ISymbol> |
115 | (new Comparator() { //<Object> |
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116 | 21200 | vcaballero | public int compare(Object o1, Object o2) { |
117 | if ((o1 != null) && (o2 != null)) { |
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118 | if (o1 instanceof NullIntervalValue && |
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119 | o2 instanceof NullIntervalValue) {
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120 | return 0; |
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121 | } |
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122 | |||
123 | if (o2 instanceof NullIntervalValue) { |
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124 | return 1; |
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125 | } |
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126 | |||
127 | if (o1 instanceof NullIntervalValue) { |
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128 | return -1; |
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129 | } |
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130 | |||
131 | FInterval i2 = (FInterval) o2; |
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132 | FInterval i1 = (FInterval) o1; |
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133 | |||
134 | if (i1.getMin() > i2.getMin()) {
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135 | return 1; |
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136 | } |
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137 | |||
138 | if (i1.getMin() < i2.getMin()) {
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139 | return -1; |
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140 | } |
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141 | if (i1.getMax() < i2.getMax()) {
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142 | return -1; |
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143 | } |
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144 | if (i1.getMax() > i2.getMax()) {
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145 | return 1; |
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146 | } |
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147 | } |
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148 | |||
149 | return 0; |
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150 | } |
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151 | }); |
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152 | 22506 | vcaballero | protected ArrayList keys = new ArrayList(); //<Object> |
153 | 21200 | vcaballero | protected int index = 0; |
154 | protected String[] fieldNames; |
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155 | protected int fieldId; |
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156 | protected ISymbol defaultSymbol;
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157 | protected FeatureStore featureStore;
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158 | protected int intervalType = NATURAL_INTERVALS; |
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159 | protected boolean useDefaultSymbol = false; |
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160 | |||
161 | private Logger logger = Logger.getLogger(AbstractIntervalLegend.class); |
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162 | |||
163 | public void addSymbol(Object key, ISymbol symbol) { |
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164 | symbols.put(key, symbol); |
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165 | keys.add(key); |
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166 | fireClassifiedSymbolChangeEvent(new SymbolLegendEvent(null, symbol)); |
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167 | } |
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168 | |||
169 | /*
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170 | * @see com.iver.cit.gvsig.fmap.rendering.IVectorialLegend#getSymbol(int)
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171 | */
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172 | public ISymbol getSymbol(FeatureID featureID) throws ReadException { |
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173 | Object val = featureStore.getFeatureByID(featureID).get(fieldId);
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174 | IInterval interval = getInterval(val); |
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175 | ISymbol theSymbol = getSymbolByInterval(interval); |
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176 | |||
177 | |||
178 | if (theSymbol != null) { |
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179 | return theSymbol;
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180 | } else if (useDefaultSymbol) { |
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181 | return getDefaultSymbol();
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182 | } |
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183 | |||
184 | return null; |
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185 | } |
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186 | |||
187 | public ISymbol getSymbolByFeature(Feature feat) {
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188 | Object val = feat.get(fieldId);
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189 | IInterval interval = getInterval(val); |
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190 | ISymbol theSymbol = getSymbolByInterval(interval); |
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191 | |||
192 | return theSymbol;
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193 | } |
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194 | |||
195 | |||
196 | public FInterval[] calculateIntervals(FeatureStore featureStore, String fieldName, int numIntervalos, int shapeType) |
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197 | throws ReadException, LegendLayerException {
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198 | logger.debug("elRs.start()");
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199 | // recordSet.start();
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200 | |||
201 | 22478 | vcaballero | // int idField = -1;
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202 | 21200 | vcaballero | |
203 | setClassifyingFieldNames(new String[] {fieldName}); |
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204 | |||
205 | String[] fieldNames = getClassifyingFieldNames(); |
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206 | 22478 | vcaballero | Iterator iterator=featureStore.getDataCollection(fieldNames,null,null).iterator(); |
207 | 21200 | vcaballero | |
208 | |||
209 | // for (int i = 0; i < recordSet.getFieldCount(); i++) {
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210 | // String nomAux = recordSet.getFieldName(i).trim();
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211 | //
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212 | // if (fieldNames[0].compareToIgnoreCase(nomAux) == 0) {
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213 | // idField = i;
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214 | //
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215 | // break;
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216 | // }
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217 | // }
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218 | |||
219 | 22478 | vcaballero | // if (idField == -1) {
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220 | // logger.error("Campo no reconocido " + fieldNames);
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221 | //
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222 | // return null;
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223 | // }
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224 | 21200 | vcaballero | |
225 | double minValue = Double.MAX_VALUE; |
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226 | double maxValue = Double.NEGATIVE_INFINITY; |
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227 | |||
228 | VectorialIntervalLegend auxLegend = LegendFactory. |
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229 | createVectorialIntervalLegend(shapeType); |
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230 | |||
231 | Object clave;
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232 | |||
233 | while (iterator.hasNext()) {
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234 | Feature feature = (Feature) iterator.next(); |
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235 | |||
236 | // for (int j = 0; j < recordSet.getRowCount(); j++) {
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237 | 22478 | vcaballero | clave = feature.get(fieldName); |
238 | 21200 | vcaballero | |
239 | IInterval interval = auxLegend.getInterval(clave); |
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240 | |||
241 | ////Comprobar que no esta repetido y no hace falta introducir en el hashtable el campo junto con el simbolo.
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242 | if (auxLegend.getSymbolByInterval(interval) == null) { |
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243 | //si no esta creado el simbolo se crea
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244 | double valor = 0; |
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245 | |||
246 | |||
247 | if (clave instanceof Number) { |
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248 | valor=((Number)clave).doubleValue();
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249 | }else if (clave instanceof Date) { |
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250 | //TODO POR IMPLEMENTAR
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251 | ///valorDate = elRs.getFieldValueAsDate(idField);
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252 | ///if (valorDate.before(minValueDate)) minValueDate = valorDate;
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253 | ///if (valorDate.after(maxValueDate)) maxValueDate = valorDate;
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254 | } else if (clave instanceof NullValue) { |
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255 | continue;
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256 | } |
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257 | |||
258 | if (valor < minValue) {
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259 | minValue = valor; |
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260 | } |
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261 | |||
262 | if (valor > maxValue) {
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263 | maxValue = valor; |
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264 | } |
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265 | } |
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266 | } |
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267 | |||
268 | FInterval[] intervalArray = null; |
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269 | switch (getIntervalType()) {
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270 | case VectorialIntervalLegend.EQUAL_INTERVALS:
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271 | intervalArray = calculateEqualIntervals(numIntervalos, |
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272 | minValue, maxValue, fieldName); |
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273 | |||
274 | break;
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275 | |||
276 | case VectorialIntervalLegend.NATURAL_INTERVALS:
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277 | intervalArray = calculateNaturalIntervals(featureStore, numIntervalos, |
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278 | minValue, maxValue, fieldName); |
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279 | |||
280 | break;
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281 | |||
282 | case VectorialIntervalLegend.QUANTILE_INTERVALS:
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283 | intervalArray = calculateQuantileIntervals(featureStore, numIntervalos, |
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284 | minValue, maxValue, fieldName); |
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285 | |||
286 | break;
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287 | } |
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288 | // recordSet.stop();
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289 | return intervalArray;
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290 | } |
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291 | |||
292 | |||
293 | /**
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294 | * EQUAL INTERVAL Devuelve un Array con el n?mero de intervalos que se
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295 | * quieren crear. Los intervalos se crean con un tama?o igual entre ellos.
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296 | * @param numIntervals n?mero de intervalos
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297 | * @param minValue Valor m?nimo.
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298 | * @param maxValue Valor m?ximo.
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299 | * @param fieldName Nombre del campo
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300 | *
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301 | * @return Array con los intervalos.
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302 | */
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303 | private FInterval[] calculateEqualIntervals(int numIntervals, double minValue, |
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304 | double maxValue, String fieldName) { |
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305 | FInterval[] theIntervalArray = new FInterval[numIntervals]; |
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306 | double step = (maxValue - minValue) / numIntervals;
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307 | |||
308 | if (numIntervals > 1) { |
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309 | theIntervalArray[0] = new FInterval(minValue, minValue + step); |
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310 | |||
311 | for (int i = 1; i < (numIntervals - 1); i++) { |
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312 | theIntervalArray[i] = new FInterval(minValue + (i * step) +
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313 | 0.01, minValue + ((i + 1) * step)); |
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314 | } |
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315 | |||
316 | theIntervalArray[numIntervals - 1] = new FInterval(minValue + |
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317 | ((numIntervals - 1) * step) + 0.01, maxValue); |
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318 | } else {
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319 | theIntervalArray[0] = new FInterval(minValue, maxValue); |
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320 | } |
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321 | |||
322 | return theIntervalArray;
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323 | } |
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324 | |||
325 | /**
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326 | * NATURAL INTERVAL Devuelve un Array con el n?mero de intervalos que se
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327 | * quieren crear. Los intervalos se distribuyen de forma natural.
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328 | *
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329 | * @param numIntervals n?mero de intervalos
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330 | * @param minValue Valor m?nimo.
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331 | * @param maxValue Valor m?ximo.
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332 | * @param fieldName Nombre del campo
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333 | *
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334 | * @return Array con los intervalos.
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335 | * @throws LegendLayerException
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336 | */
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337 | private FInterval[] calculateNaturalIntervals(FeatureStore featureStore, int numIntervals, double minValue, |
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338 | double maxValue, String fieldName) throws LegendLayerException { |
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339 | NaturalIntervalGenerator intervalGenerator = new NaturalIntervalGenerator(
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340 | featureStore, fieldName, numIntervals); |
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341 | |||
342 | try {
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343 | intervalGenerator.generarIntervalos(); |
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344 | } catch (ReadException e) {
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345 | throw new LegendLayerException(Messages.getString("failed_calculating_intervals"), e); |
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346 | } |
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347 | |||
348 | int numIntervalsGen = intervalGenerator.getNumIntervals() - 1; |
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349 | |||
350 | if (numIntervalsGen == -1) { |
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351 | //TODO cuando no puede calcular los intervalos.
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352 | numIntervalsGen = 1;
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353 | } |
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354 | |||
355 | FInterval[] theIntervalArray = new FInterval[numIntervalsGen]; |
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356 | |||
357 | if (numIntervalsGen > 1) { |
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358 | theIntervalArray[0] = new FInterval(minValue, |
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359 | intervalGenerator.getValorRuptura(0));
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360 | |||
361 | for (int i = 1; i < (numIntervalsGen - 1); i++) { |
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362 | theIntervalArray[i] = new FInterval(intervalGenerator.getValInit(i -
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363 | 1), intervalGenerator.getValorRuptura(i));
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364 | } |
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365 | |||
366 | theIntervalArray[numIntervalsGen - 1] = new FInterval(intervalGenerator.getValInit(numIntervalsGen - |
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367 | 2), maxValue);
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368 | } else {
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369 | theIntervalArray[numIntervalsGen - 1] = new FInterval(minValue, |
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370 | maxValue); |
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371 | } |
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372 | |||
373 | return theIntervalArray;
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374 | } |
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375 | |||
376 | /**
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377 | * QUANTILE INTERVAL Devuelve un Array con el n?mero de intervalos que se
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378 | * quieren crear. Los intervalos se distribuyen de forma quantile.
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379 | * @param recordSet
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380 | *
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381 | * @param numIntervals n?mero de intervalos
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382 | * @param minValue Valor m?nimo.
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383 | * @param maxValue Valor m?ximo.
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384 | * @param fieldName Nombre del campo
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385 | *
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386 | * @return Array con los intervalos.
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387 | * @throws LegendLayerException
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388 | */
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389 | private FInterval[] calculateQuantileIntervals(FeatureStore featureStore, int numIntervals, double minValue, |
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390 | double maxValue, String fieldName) throws LegendLayerException { |
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391 | QuantileIntervalGenerator intervalGenerator = new QuantileIntervalGenerator(
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392 | featureStore, fieldName, numIntervals); |
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393 | |||
394 | try {
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395 | intervalGenerator.generarIntervalos(); |
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396 | } catch (ReadException e) {
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397 | throw new LegendLayerException(Messages.getString("failed_calculating_intervals"), e); |
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398 | } |
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399 | |||
400 | int numIntervalsGen = intervalGenerator.getNumIntervalGen();
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401 | FInterval[] theIntervalArray = new FInterval[numIntervalsGen]; |
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402 | |||
403 | if (intervalGenerator.getNumIntervalGen() > 1) { |
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404 | theIntervalArray[0] = new FInterval(minValue, |
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405 | intervalGenerator.getValRuptura(0));
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406 | |||
407 | for (int i = 1; i < (numIntervalsGen - 1); i++) { |
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408 | theIntervalArray[i] = new FInterval(intervalGenerator.getValInit(i -
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409 | 1), intervalGenerator.getValRuptura(i));
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410 | } |
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411 | |||
412 | theIntervalArray[numIntervalsGen - 1] = new FInterval(intervalGenerator.getValInit(numIntervalsGen - |
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413 | 2), maxValue);
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414 | } else {
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415 | theIntervalArray[numIntervalsGen - 1] = new FInterval(minValue, |
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416 | maxValue); |
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417 | } |
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418 | |||
419 | return theIntervalArray;
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420 | } |
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421 | |||
422 | 22751 | vcaballero | public ISymbol getSymbolByInterval(IInterval key) {
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423 | |||
424 | if (key == null){ |
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425 | if (isUseDefaultSymbol())
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426 | return defaultSymbol;
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427 | 21200 | vcaballero | return null; |
428 | } |
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429 | if (symbols.containsKey(key)) {
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430 | return (ISymbol) symbols.get(key);
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431 | } |
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432 | |||
433 | 22751 | vcaballero | if (isUseDefaultSymbol())
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434 | return defaultSymbol;
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435 | |||
436 | 21200 | vcaballero | return null; |
437 | } |
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438 | |||
439 | 22751 | vcaballero | |
440 | 21200 | vcaballero | public String[] getDescriptions() { |
441 | String[] descriptions = new String[symbols.size()]; |
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442 | ISymbol[] auxSym = getSymbols();
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443 | |||
444 | for (int i = 0; i < descriptions.length; i++) |
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445 | descriptions[i] = auxSym[i].getDescription(); |
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446 | |||
447 | return descriptions;
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448 | } |
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449 | |||
450 | |||
451 | public Object[] getValues() { |
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452 | return symbols.keySet().toArray();
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453 | } |
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454 | |||
455 | public void clear() { |
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456 | index = 0;
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457 | keys.clear(); |
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458 | symbols.clear(); |
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459 | } |
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460 | |||
461 | public ISymbol[] getSymbols() { |
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462 | return (ISymbol[]) symbols.values().toArray(new ISymbol[0]); |
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463 | } |
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464 | |||
465 | public String[] getClassifyingFieldNames() { |
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466 | return fieldNames;
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467 | } |
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468 | |||
469 | public void setDefaultSymbol(ISymbol s) { |
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470 | ISymbol old = defaultSymbol; |
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471 | if (s == null) throw new NullPointerException("Default symbol cannot be null"); |
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472 | defaultSymbol = s; |
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473 | fireDefaultSymbolChangedEvent(new SymbolLegendEvent(old, defaultSymbol));
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474 | } |
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475 | |||
476 | public void setClassifyingFieldNames(String[] fieldNames) { |
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477 | this.fieldNames = fieldNames;
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478 | } |
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479 | |||
480 | public ISymbol getDefaultSymbol() {
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481 | NullIntervalValue niv=new NullIntervalValue();
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482 | if (symbols.containsKey(niv))
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483 | return (ISymbol)symbols.get(niv);
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484 | |||
485 | if(defaultSymbol==null) |
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486 | 22751 | vcaballero | defaultSymbol=SymbologyFactory.createDefaultSymbolByShapeType(shapeType); |
487 | 21200 | vcaballero | return defaultSymbol;
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488 | } |
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489 | |||
490 | |||
491 | 22751 | vcaballero | |
492 | 21200 | vcaballero | public void setFeatureStore(FeatureStore featureStore) |
493 | throws ReadException {
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494 | /*
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495 | * when we move definitely to feature iterators this
|
||
496 | * method
|
||
497 | */
|
||
498 | this.featureStore = featureStore;
|
||
499 | // ds.start();
|
||
500 | 23750 | jjdelcerro | fieldId = ((FeatureType)featureStore.getFeatureTypes().get(0)).getIndex(fieldNames[0]); |
501 | 21200 | vcaballero | // ds.stop();
|
502 | } |
||
503 | |||
504 | |||
505 | public IInterval getInterval(Object v) { |
||
506 | for (int i = 0; i < keys.size(); i++) { |
||
507 | if (((IInterval) keys.get(i)).isInInterval(v)) {
|
||
508 | return (IInterval) keys.get(i);
|
||
509 | } |
||
510 | } |
||
511 | |||
512 | return null; |
||
513 | } |
||
514 | |||
515 | public void setIntervalType(int intervalType) { |
||
516 | this.intervalType = intervalType;
|
||
517 | } |
||
518 | |||
519 | |||
520 | public int getIntervalType() { |
||
521 | return intervalType;
|
||
522 | } |
||
523 | |||
524 | public void useDefaultSymbol(boolean b) { |
||
525 | useDefaultSymbol = b; |
||
526 | } |
||
527 | |||
528 | |||
529 | public boolean isUseDefaultSymbol() { |
||
530 | return useDefaultSymbol;
|
||
531 | } |
||
532 | |||
533 | |||
534 | public void delSymbol(Object obj) { |
||
535 | keys.remove(obj); |
||
536 | symbols.remove(obj); |
||
537 | fireClassifiedSymbolChangeEvent( |
||
538 | new SymbolLegendEvent(
|
||
539 | 22506 | vcaballero | (ISymbol)symbols.remove(obj), |
540 | 21200 | vcaballero | null));
|
541 | } |
||
542 | |||
543 | |||
544 | public void replace(ISymbol oldSymbol, ISymbol newSymbol) { |
||
545 | if (symbols.containsValue(oldSymbol)) {
|
||
546 | Iterator it = symbols.keySet().iterator();
|
||
547 | while (it.hasNext()) {
|
||
548 | Object key = it.next();
|
||
549 | if (symbols.get(key).equals(oldSymbol)) {
|
||
550 | symbols.remove(key); |
||
551 | symbols.put(key, newSymbol); |
||
552 | 22751 | vcaballero | fireClassifiedSymbolChangeEvent( |
553 | new SymbolLegendEvent(oldSymbol, newSymbol));
|
||
554 | 21200 | vcaballero | } |
555 | } |
||
556 | } |
||
557 | } |
||
558 | } |