svn-gvsig-desktop / tags / J2ME_compat_v1_2_Build_1209 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / rendering / AbstractIntervalLegend.java @ 19509
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1 | 19509 | jcarrasco | /* 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 14418 2007-10-04 11:22:02Z jvidal $
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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 com.iver.cit.gvsig.fmap.rendering; |
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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.Iterator; |
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92 | import java.util.TreeMap; |
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93 | |||
94 | import org.apache.log4j.Logger; |
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95 | |||
96 | import com.hardcode.gdbms.driver.exceptions.ReadDriverException; |
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97 | import com.hardcode.gdbms.engine.data.DataSource; |
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98 | import com.hardcode.gdbms.engine.instruction.FieldNotFoundException; |
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99 | import com.hardcode.gdbms.engine.values.DateValue; |
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100 | import com.hardcode.gdbms.engine.values.DoubleValue; |
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101 | import com.hardcode.gdbms.engine.values.FloatValue; |
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102 | import com.hardcode.gdbms.engine.values.IntValue; |
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103 | import com.hardcode.gdbms.engine.values.LongValue; |
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104 | import com.hardcode.gdbms.engine.values.NullValue; |
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105 | import com.hardcode.gdbms.engine.values.Value; |
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106 | import com.iver.cit.gvsig.exceptions.layers.LegendLayerException; |
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107 | import com.iver.cit.gvsig.fmap.Messages; |
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108 | import com.iver.cit.gvsig.fmap.core.FShape; |
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109 | import com.iver.cit.gvsig.fmap.core.IFeature; |
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110 | import com.iver.cit.gvsig.fmap.core.SymbologyFactory; |
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111 | import com.iver.cit.gvsig.fmap.core.styles.SimpleMarkerFillPropertiesStyle; |
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112 | import com.iver.cit.gvsig.fmap.core.symbols.IMarkerSymbol; |
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113 | import com.iver.cit.gvsig.fmap.core.symbols.ISymbol; |
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114 | import com.iver.cit.gvsig.fmap.core.symbols.MarkerFillSymbol; |
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115 | import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
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116 | |||
117 | public abstract class AbstractIntervalLegend extends AbstractClassifiedVectorLegend implements IVectorialIntervalLegend{ |
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118 | protected int shapeType; |
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119 | |||
120 | public static final int EQUAL_INTERVALS = 0; |
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121 | public static final int NATURAL_INTERVALS = 1; |
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122 | public static final int QUANTILE_INTERVALS = 2; |
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123 | protected TreeMap symbols = new TreeMap |
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124 | (new Comparator() { |
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125 | public int compare(Object o1, Object o2) { |
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126 | if ((o1 != null) && (o2 != null)) { |
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127 | if (o1 instanceof NullIntervalValue && |
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128 | o2 instanceof NullIntervalValue) {
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129 | return 0; |
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130 | } |
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131 | |||
132 | if (o2 instanceof NullIntervalValue) { |
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133 | return 1; |
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134 | } |
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135 | |||
136 | if (o1 instanceof NullIntervalValue) { |
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137 | return -1; |
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138 | } |
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139 | |||
140 | FInterval i2 = (FInterval) o2; |
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141 | FInterval i1 = (FInterval) o1; |
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142 | |||
143 | if (i1.getMin() > i2.getMin()) {
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144 | return 1; |
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145 | } |
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146 | |||
147 | if (i1.getMin() < i2.getMin()) {
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148 | return -1; |
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149 | } |
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150 | if (i1.getMax() < i2.getMax()) {
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151 | return -1; |
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152 | } |
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153 | if (i1.getMax() > i2.getMax()) {
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154 | return 1; |
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155 | } |
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156 | } |
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157 | |||
158 | return 0; |
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159 | } |
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160 | }); |
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161 | protected ArrayList keys = new ArrayList(); |
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162 | protected int index = 0; |
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163 | protected String[] fieldNames; |
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164 | protected int fieldId; |
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165 | protected ISymbol defaultSymbol;
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166 | protected DataSource dataSource; |
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167 | protected int intervalType = NATURAL_INTERVALS; |
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168 | protected boolean useDefaultSymbol = false; |
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169 | |||
170 | private Logger logger = Logger.getLogger(AbstractIntervalLegend.class); |
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171 | |||
172 | public void addSymbol(Object key, ISymbol symbol) { |
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173 | symbols.put(key, symbol); |
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174 | keys.add(key); |
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175 | } |
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176 | |||
177 | /*
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178 | * @see com.iver.cit.gvsig.fmap.rendering.IVectorialLegend#getSymbol(int)
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179 | */
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180 | public ISymbol getSymbol(int recordIndex) throws ReadDriverException { |
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181 | Value val = dataSource.getFieldValue(recordIndex, fieldId); |
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182 | IInterval interval = getInterval(val); |
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183 | ISymbol theSymbol = getSymbolByInterval(interval); |
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184 | |||
185 | |||
186 | |||
187 | if (shapeType == FShape.POLYGON && theSymbol instanceof IMarkerSymbol) { |
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188 | // transform it to a fill symbol
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189 | MarkerFillSymbol aux = new MarkerFillSymbol();
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190 | // tell the fill style to draw the IMarkerSymbol
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191 | // as a IFillSymbol centering it in the shape polygon
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192 | // centroid and applying offset (if any).
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193 | aux.setMarker((IMarkerSymbol) theSymbol); |
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194 | SimpleMarkerFillPropertiesStyle p = new SimpleMarkerFillPropertiesStyle();
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195 | p.setFillStyle(SimpleMarkerFillPropertiesStyle.SINGLE_CENTERED_SYMBOL); |
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196 | aux.setMarkerFillProperties(p); |
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197 | theSymbol = aux; |
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198 | } |
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199 | |||
200 | if (theSymbol != null) { |
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201 | return theSymbol;
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202 | } else if (useDefaultSymbol) { |
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203 | return getDefaultSymbol();
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204 | } |
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205 | |||
206 | return null; |
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207 | } |
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208 | |||
209 | |||
210 | public ISymbol getSymbolByFeature(IFeature feat) {
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211 | Value val = feat.getAttribute(FLyrVect.forTestOnlyVariableUseIterators_REMOVE_THIS_FIELD |
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212 | ? 0 :fieldId);
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213 | IInterval interval = getInterval(val); |
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214 | ISymbol theSymbol = getSymbolByInterval(interval); |
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215 | |||
216 | if (theSymbol == null) |
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217 | return getDefaultSymbol();
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218 | |||
219 | if (shapeType == FShape.POLYGON && theSymbol instanceof IMarkerSymbol) { |
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220 | // transform it to a fill symbol
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221 | MarkerFillSymbol aux = new MarkerFillSymbol();
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222 | // tell the fill style to draw the IMarkerSymbol
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223 | // as a IFillSymbol centering it in the shape polygon
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224 | // centroid and applying offset (if any).
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225 | aux.setMarker((IMarkerSymbol) theSymbol); |
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226 | SimpleMarkerFillPropertiesStyle p = new SimpleMarkerFillPropertiesStyle();
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227 | p.setFillStyle(SimpleMarkerFillPropertiesStyle.SINGLE_CENTERED_SYMBOL); |
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228 | aux.setMarkerFillProperties(p); |
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229 | theSymbol = aux; |
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230 | } |
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231 | |||
232 | |||
233 | return theSymbol;
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234 | } |
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235 | |||
236 | |||
237 | public FInterval[] calculateIntervals(DataSource recordSet, String fieldName, int numIntervalos, int shapeType) |
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238 | throws ReadDriverException, LegendLayerException {
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239 | logger.debug("elRs.start()");
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240 | recordSet.start(); |
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241 | |||
242 | int idField = -1; |
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243 | |||
244 | setClassifyingFieldNames(new String[] {fieldName}); |
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245 | |||
246 | String[] fieldNames = getClassifyingFieldNames(); |
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247 | |||
248 | |||
249 | for (int i = 0; i < recordSet.getFieldCount(); i++) { |
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250 | String nomAux = recordSet.getFieldName(i).trim();
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251 | |||
252 | if (fieldNames[0].compareToIgnoreCase(nomAux) == 0) { |
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253 | idField = i; |
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254 | |||
255 | break;
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256 | } |
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257 | } |
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258 | |||
259 | if (idField == -1) { |
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260 | logger.error("Campo no reconocido " + fieldNames);
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261 | |||
262 | return null; |
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263 | } |
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264 | |||
265 | double minValue = Double.MAX_VALUE; |
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266 | double maxValue = Double.NEGATIVE_INFINITY; |
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267 | |||
268 | VectorialIntervalLegend auxLegend = LegendFactory. |
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269 | createVectorialIntervalLegend(shapeType); |
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270 | |||
271 | Value clave; |
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272 | |||
273 | for (int j = 0; j < recordSet.getRowCount(); j++) { |
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274 | clave = recordSet.getFieldValue(j, idField); |
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275 | |||
276 | IInterval interval = auxLegend.getInterval(clave); |
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277 | |||
278 | ////Comprobar que no esta repetido y no hace falta introducir en el hashtable el campo junto con el simbolo.
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279 | if (auxLegend.getSymbolByInterval(interval) == null) { |
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280 | //si no esta creado el simbolo se crea
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281 | double valor = 0; |
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282 | |||
283 | |||
284 | if (clave instanceof IntValue) { |
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285 | valor = ((IntValue) clave).getValue(); |
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286 | } else if (clave instanceof DoubleValue) { |
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287 | valor = ((DoubleValue) clave).getValue(); |
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288 | } else if (clave instanceof FloatValue) { |
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289 | valor = ((FloatValue) clave).getValue(); |
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290 | } else if (clave instanceof LongValue) { |
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291 | valor = ((LongValue) clave).getValue(); |
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292 | } else if (clave instanceof DateValue) { |
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293 | //TODO POR IMPLEMENTAR
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294 | ///valorDate = elRs.getFieldValueAsDate(idField);
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295 | ///if (valorDate.before(minValueDate)) minValueDate = valorDate;
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296 | ///if (valorDate.after(maxValueDate)) maxValueDate = valorDate;
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297 | } else if (clave instanceof NullValue) { |
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298 | continue;
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299 | } |
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300 | |||
301 | if (valor < minValue) {
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302 | minValue = valor; |
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303 | } |
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304 | |||
305 | if (valor > maxValue) {
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306 | maxValue = valor; |
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307 | } |
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308 | } |
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309 | } |
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310 | |||
311 | FInterval[] intervalArray = null; |
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312 | switch (getIntervalType()) {
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313 | case VectorialIntervalLegend.EQUAL_INTERVALS:
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314 | intervalArray = calculateEqualIntervals(numIntervalos, |
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315 | minValue, maxValue, fieldName); |
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316 | |||
317 | break;
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318 | |||
319 | case VectorialIntervalLegend.NATURAL_INTERVALS:
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320 | intervalArray = calculateNaturalIntervals(recordSet, numIntervalos, |
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321 | minValue, maxValue, fieldName); |
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322 | |||
323 | break;
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324 | |||
325 | case VectorialIntervalLegend.QUANTILE_INTERVALS:
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326 | intervalArray = calculateQuantileIntervals(recordSet, numIntervalos, |
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327 | minValue, maxValue, fieldName); |
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328 | |||
329 | break;
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330 | } |
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331 | recordSet.stop(); |
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332 | return intervalArray;
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333 | } |
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334 | |||
335 | |||
336 | /**
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337 | * EQUAL INTERVAL Devuelve un Array con el n?mero de intervalos que se
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338 | * quieren crear. Los intervalos se crean con un tama?o igual entre ellos.
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339 | * @param numIntervals n?mero de intervalos
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340 | * @param minValue Valor m?nimo.
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341 | * @param maxValue Valor m?ximo.
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342 | * @param fieldName Nombre del campo
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343 | *
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344 | * @return Array con los intervalos.
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345 | */
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346 | private FInterval[] calculateEqualIntervals(int numIntervals, double minValue, |
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347 | double maxValue, String fieldName) { |
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348 | FInterval[] theIntervalArray = new FInterval[numIntervals]; |
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349 | double step = (maxValue - minValue) / numIntervals;
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350 | |||
351 | if (numIntervals > 1) { |
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352 | theIntervalArray[0] = new FInterval(minValue, minValue + step); |
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353 | |||
354 | for (int i = 1; i < (numIntervals - 1); i++) { |
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355 | theIntervalArray[i] = new FInterval(minValue + (i * step) +
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356 | 0.01, minValue + ((i + 1) * step)); |
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357 | } |
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358 | |||
359 | theIntervalArray[numIntervals - 1] = new FInterval(minValue + |
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360 | ((numIntervals - 1) * step) + 0.01, maxValue); |
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361 | } else {
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362 | theIntervalArray[0] = new FInterval(minValue, maxValue); |
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363 | } |
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364 | |||
365 | return theIntervalArray;
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366 | } |
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367 | |||
368 | /**
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369 | * NATURAL INTERVAL Devuelve un Array con el n?mero de intervalos que se
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370 | * quieren crear. Los intervalos se distribuyen de forma natural.
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371 | *
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372 | * @param numIntervals n?mero de intervalos
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373 | * @param minValue Valor m?nimo.
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374 | * @param maxValue Valor m?ximo.
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375 | * @param fieldName Nombre del campo
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376 | *
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377 | * @return Array con los intervalos.
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378 | * @throws LegendLayerException
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379 | */
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380 | private FInterval[] calculateNaturalIntervals(DataSource recordSet, int numIntervals, double minValue, |
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381 | double maxValue, String fieldName) throws LegendLayerException { |
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382 | NaturalIntervalGenerator intervalGenerator = new NaturalIntervalGenerator(
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383 | recordSet, fieldName, numIntervals); |
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384 | |||
385 | try {
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386 | intervalGenerator.generarIntervalos(); |
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387 | } catch (ReadDriverException e) {
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388 | throw new LegendLayerException(Messages.getString("failed_calculating_intervals"), e); |
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389 | } |
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390 | |||
391 | int numIntervalsGen = intervalGenerator.getNumIntervals() - 1; |
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392 | |||
393 | if (numIntervalsGen == -1) { |
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394 | //TODO cuando no puede calcular los intervalos.
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395 | numIntervalsGen = 1;
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396 | } |
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397 | |||
398 | FInterval[] theIntervalArray = new FInterval[numIntervalsGen]; |
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399 | |||
400 | if (numIntervalsGen > 1) { |
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401 | theIntervalArray[0] = new FInterval(minValue, |
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402 | intervalGenerator.getValorRuptura(0));
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403 | |||
404 | for (int i = 1; i < (numIntervalsGen - 1); i++) { |
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405 | theIntervalArray[i] = new FInterval(intervalGenerator.getValInit(i -
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406 | 1), intervalGenerator.getValorRuptura(i));
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407 | } |
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408 | |||
409 | theIntervalArray[numIntervalsGen - 1] = new FInterval(intervalGenerator.getValInit(numIntervalsGen - |
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410 | 2), maxValue);
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411 | } else {
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412 | theIntervalArray[numIntervalsGen - 1] = new FInterval(minValue, |
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413 | maxValue); |
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414 | } |
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415 | |||
416 | return theIntervalArray;
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417 | } |
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418 | |||
419 | /**
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420 | * QUANTILE INTERVAL Devuelve un Array con el n?mero de intervalos que se
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421 | * quieren crear. Los intervalos se distribuyen de forma quantile.
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422 | * @param recordSet
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423 | *
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424 | * @param numIntervals n?mero de intervalos
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425 | * @param minValue Valor m?nimo.
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426 | * @param maxValue Valor m?ximo.
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427 | * @param fieldName Nombre del campo
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428 | *
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429 | * @return Array con los intervalos.
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430 | * @throws LegendLayerException
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431 | */
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432 | private FInterval[] calculateQuantileIntervals(DataSource recordSet, int numIntervals, double minValue, |
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433 | double maxValue, String fieldName) throws LegendLayerException { |
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434 | QuantileIntervalGenerator intervalGenerator = new QuantileIntervalGenerator(
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435 | recordSet, fieldName, numIntervals); |
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436 | |||
437 | try {
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438 | intervalGenerator.generarIntervalos(); |
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439 | } catch (ReadDriverException e) {
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440 | throw new LegendLayerException(Messages.getString("failed_calculating_intervals"), e); |
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441 | } |
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442 | |||
443 | int numIntervalsGen = intervalGenerator.getNumIntervalGen();
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444 | FInterval[] theIntervalArray = new FInterval[numIntervalsGen]; |
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445 | |||
446 | if (intervalGenerator.getNumIntervalGen() > 1) { |
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447 | theIntervalArray[0] = new FInterval(minValue, |
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448 | intervalGenerator.getValRuptura(0));
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449 | |||
450 | for (int i = 1; i < (numIntervalsGen - 1); i++) { |
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451 | theIntervalArray[i] = new FInterval(intervalGenerator.getValInit(i -
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452 | 1), intervalGenerator.getValRuptura(i));
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453 | } |
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454 | |||
455 | theIntervalArray[numIntervalsGen - 1] = new FInterval(intervalGenerator.getValInit(numIntervalsGen - |
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456 | 2), maxValue);
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457 | } else {
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458 | theIntervalArray[numIntervalsGen - 1] = new FInterval(minValue, |
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459 | maxValue); |
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460 | } |
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461 | |||
462 | return theIntervalArray;
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463 | } |
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464 | |||
465 | public ISymbol getSymbolByInterval(IInterval key) {
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466 | if (key == null) { |
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467 | return null; |
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468 | } |
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469 | |||
470 | if (symbols.containsKey(key)) {
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471 | return (ISymbol) symbols.get(key);
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472 | } |
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473 | |||
474 | return null; |
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475 | } |
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476 | |||
477 | public String[] getDescriptions() { |
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478 | String[] descriptions = new String[symbols.size()]; |
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479 | ISymbol[] auxSym = getSymbols();
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480 | |||
481 | for (int i = 0; i < descriptions.length; i++) |
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482 | descriptions[i] = auxSym[i].getDescription(); |
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483 | |||
484 | return descriptions;
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485 | } |
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486 | |||
487 | |||
488 | public Object[] getValues() { |
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489 | return symbols.keySet().toArray();
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490 | } |
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491 | |||
492 | public void clear() { |
||
493 | index = 0;
|
||
494 | keys.clear(); |
||
495 | symbols.clear(); |
||
496 | } |
||
497 | |||
498 | public ISymbol[] getSymbols() { |
||
499 | return (ISymbol[]) symbols.values().toArray(new ISymbol[0]); |
||
500 | } |
||
501 | |||
502 | public String[] getClassifyingFieldNames() { |
||
503 | return fieldNames;
|
||
504 | } |
||
505 | |||
506 | public void setDefaultSymbol(ISymbol s) { |
||
507 | if (s == null) throw new NullPointerException("Default symbol cannot be null"); |
||
508 | defaultSymbol = s; |
||
509 | } |
||
510 | |||
511 | public void setClassifyingFieldNames(String[] fieldNames) { |
||
512 | this.fieldNames = fieldNames;
|
||
513 | } |
||
514 | |||
515 | public ISymbol getDefaultSymbol() {
|
||
516 | NullIntervalValue niv=new NullIntervalValue();
|
||
517 | if (symbols.containsKey(niv))
|
||
518 | return (ISymbol)symbols.get(niv);
|
||
519 | |||
520 | if(defaultSymbol==null) |
||
521 | defaultSymbol=SymbologyFactory.createDefaultFillSymbol();//mio
|
||
522 | return defaultSymbol;
|
||
523 | } |
||
524 | |||
525 | |||
526 | public void setDataSource(DataSource ds) |
||
527 | throws FieldNotFoundException, ReadDriverException {
|
||
528 | if (!FLyrVect.forTestOnlyVariableUseIterators_REMOVE_THIS_FIELD) {
|
||
529 | /*
|
||
530 | * when we move definitely to feature iterators this
|
||
531 | * method
|
||
532 | */
|
||
533 | dataSource = ds; |
||
534 | ds.start(); |
||
535 | fieldId = ds.getFieldIndexByName(fieldNames[0]);
|
||
536 | ds.stop(); |
||
537 | } |
||
538 | } |
||
539 | |||
540 | |||
541 | public IInterval getInterval(Value v) {
|
||
542 | for (int i = 0; i < keys.size(); i++) { |
||
543 | if (((IInterval) keys.get(i)).isInInterval(v)) {
|
||
544 | return (IInterval) keys.get(i);
|
||
545 | } |
||
546 | } |
||
547 | |||
548 | return null; |
||
549 | } |
||
550 | |||
551 | public void setIntervalType(int intervalType) { |
||
552 | this.intervalType = intervalType;
|
||
553 | } |
||
554 | |||
555 | |||
556 | public int getIntervalType() { |
||
557 | return intervalType;
|
||
558 | } |
||
559 | |||
560 | public void useDefaultSymbol(boolean b) { |
||
561 | useDefaultSymbol = b; |
||
562 | } |
||
563 | |||
564 | |||
565 | public boolean isUseDefaultSymbol() { |
||
566 | return useDefaultSymbol;
|
||
567 | } |
||
568 | |||
569 | |||
570 | public void delSymbol(Object obj) { |
||
571 | keys.remove(obj); |
||
572 | symbols.remove(obj); |
||
573 | } |
||
574 | |||
575 | |||
576 | public void replace(ISymbol oldSymbol, ISymbol newSymbol) { |
||
577 | if (symbols.containsValue(oldSymbol)) {
|
||
578 | Iterator it = symbols.keySet().iterator();
|
||
579 | while (it.hasNext()) {
|
||
580 | Object key = it.next();
|
||
581 | if (symbols.get(key).equals(oldSymbol)) {
|
||
582 | symbols.remove(key); |
||
583 | symbols.put(key, newSymbol); |
||
584 | } |
||
585 | } |
||
586 | } |
||
587 | } |
||
588 | } |