Mercurial > dive4elements > gnv-client
annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalCrossSectionChart.java @ 495:6e8364e766fa
Generate JTS geometries of "Horizontalschnitte" correctly.
gnv-artifacts/trunk@572 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Tue, 19 Jan 2010 14:06:10 +0000 |
parents | 79e80c289018 |
children | 1bf058f1a2d1 |
rev | line source |
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1 package de.intevation.gnv.chart; |
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2 |
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3 import java.util.Locale; |
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4 |
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5 import java.text.NumberFormat; |
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6 |
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7 import java.awt.Color; |
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8 import java.awt.Paint; |
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9 |
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10 import java.util.HashSet; |
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11 |
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12 import de.intevation.gnv.math.AttributedXYColumns; |
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13 |
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14 import de.intevation.gnv.jfreechart.PolygonDataset; |
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15 import de.intevation.gnv.jfreechart.PolygonPlot; |
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16 import de.intevation.gnv.jfreechart.PolygonSeries; |
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17 import de.intevation.gnv.jfreechart.PolygonRenderer; |
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18 |
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19 import de.intevation.gnv.raster.Palette; |
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20 |
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21 import org.jfree.chart.JFreeChart; |
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22 |
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23 import org.jfree.chart.plot.PlotOrientation; |
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24 |
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25 import org.jfree.chart.axis.ValueAxis; |
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26 import org.jfree.chart.axis.NumberAxis; |
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27 import org.jfree.chart.axis.SymbolAxis; |
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28 |
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29 import org.jfree.chart.title.PaintScaleLegend; |
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30 import org.jfree.chart.title.TextTitle; |
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31 |
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32 import org.jfree.chart.renderer.LookupPaintScale; |
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33 |
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34 import org.jfree.ui.RectangleEdge; |
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35 import org.jfree.ui.RectangleInsets; |
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36 |
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37 /** |
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38 * @author Ingo Weinzierl (ingo.weinzierl@intevation.de) |
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39 * @author Sascha L. Teichmann (sascha.teichmann@intevation.de) |
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40 */ |
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41 public class VerticalCrossSectionChart |
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42 implements Chart |
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43 { |
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44 public static final class PalettePaintLookup |
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45 implements PolygonRenderer.PaintLookup |
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46 { |
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47 private Palette palette; |
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48 |
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49 public PalettePaintLookup(Palette palette) { |
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50 this.palette = palette; |
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51 } |
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52 |
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53 public Paint getPaint(int index) { |
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54 return index < 0 |
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55 ? Color.black |
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56 : palette.getColor(index); |
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57 } |
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58 } // class PalettePaintLookup |
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59 |
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60 public static class LocalizedLabelGenerator |
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61 extends PolygonRenderer.DefaultLabelGenerator |
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62 { |
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63 protected NumberFormat format; |
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64 |
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65 public LocalizedLabelGenerator() { |
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66 } |
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67 |
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68 public LocalizedLabelGenerator(NumberFormat format) { |
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69 this.format = format; |
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70 } |
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71 |
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72 protected String toString(Object label) { |
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73 return label instanceof Number |
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74 ? format.format(((Number)label).doubleValue()) |
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75 : super.toString(label); |
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76 } |
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77 } // class LocalizedLabelGenerator |
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78 |
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79 protected JFreeChart chart; |
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80 |
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81 protected AttributedXYColumns columns; |
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82 protected Palette palette; |
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83 protected Locale locale; |
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84 protected ChartLabels labels; |
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85 |
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86 public VerticalCrossSectionChart() { |
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87 } |
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88 |
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89 public VerticalCrossSectionChart( |
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90 AttributedXYColumns columns, |
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91 Palette palette, |
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92 Locale locale, |
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93 ChartLabels labels |
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94 ) { |
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95 this.columns = columns; |
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96 this.palette = palette; |
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97 this.locale = locale; |
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98 this.labels = labels; |
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99 } |
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100 |
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101 protected JFreeChart createChart() { |
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102 |
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103 boolean legendB = false; |
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104 boolean tooltips = false; |
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105 boolean urls = false; |
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106 |
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107 PlotOrientation po = PlotOrientation.HORIZONTAL; |
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108 PolygonDataset data = columns.getPolygonDataset(); |
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109 |
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110 HashSet<Integer> usedColors = new HashSet<Integer>(); |
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111 |
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112 for (int i = data.getSeriesCount()-1; i >= 0; --i) { |
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113 PolygonSeries ps = data.getSeries(i); |
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114 Integer fill = (Integer)ps.getAttribute("fill"); |
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115 if (fill != null) { |
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116 usedColors.add(fill); |
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117 } |
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118 } |
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119 |
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120 NumberFormat format = NumberFormat.getInstance(locale); |
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121 format.setMinimumFractionDigits(0); |
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122 format.setMaximumFractionDigits(2); |
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123 |
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124 PolygonRenderer renderer = new PolygonRenderer( |
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125 new PalettePaintLookup(palette), |
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126 new LocalizedLabelGenerator(format)); |
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127 |
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128 ValueAxis domainAxis = new NumberAxis(this.labels.getDomainAxisLabel()); |
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129 ValueAxis rangeAxis = new NumberAxis(this.labels.getRangeAxisLabel()); |
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130 |
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131 PolygonPlot plot = new PolygonPlot( |
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132 data, |
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133 renderer, |
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134 domainAxis, |
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135 rangeAxis, |
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136 null); |
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137 |
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138 String [] labels = new String[usedColors.size()]; |
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139 |
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140 int colors = palette.getSize(); |
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141 LookupPaintScale lookupPaint = |
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142 new LookupPaintScale(-0.5d, labels.length-0.5d, Color.white); |
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143 |
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144 Color color = null; |
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145 |
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146 for (int i = 0, j = labels.length-1; i < colors && j >= 0; i++) { |
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147 if (usedColors.contains(i)) { |
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148 Palette.Entry entry = palette.getEntryByIndex(i); |
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149 color = entry.getColor(); |
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150 labels[j] = entry.getDescription(); |
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151 lookupPaint.add(j-0.5d, color); |
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152 --j; |
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153 } |
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154 } |
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155 |
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156 JFreeChart chart = new JFreeChart( |
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157 this.labels.getTitle(), |
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158 JFreeChart.DEFAULT_TITLE_FONT, |
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159 plot, |
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160 legendB); |
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161 |
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162 chart.removeLegend(); |
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163 chart.addSubtitle(new TextTitle(this.labels.getSubtitle())); |
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164 |
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165 SymbolAxis scale = new SymbolAxis(this.labels.getParameterName(), labels); |
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166 scale.setRange(-1.5d, labels.length+0.5d); |
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167 scale.setGridBandsVisible(false); |
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168 scale.setPlot(plot); |
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169 |
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170 PaintScaleLegend legend = new PaintScaleLegend( |
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171 lookupPaint, scale); |
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172 legend.setMargin(new RectangleInsets(3d, 10d, 3d, 10d)); |
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173 legend.setPosition(RectangleEdge.LEFT); |
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174 legend.setAxisOffset(5d); |
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175 |
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176 chart.addSubtitle(legend); |
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177 |
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178 return chart; |
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179 } |
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180 |
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181 public JFreeChart generateChart() { |
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182 if (chart == null) { |
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183 chart = createChart(); |
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184 } |
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185 return chart; |
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186 } |
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187 } |
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188 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |