Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalCrossSectionChart.java @ 726:8d475151b2c1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use a better key - hash served by getHash() from StateBase - to put chart data into cache (issue201). gnv-artifacts/trunk@759 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 10 Mar 2010 15:04:30 +0000
parents 92d7a8cd1ef1
children 79401c871da4
rev   line source
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1 package de.intevation.gnv.chart;
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2
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3 import de.intevation.gnv.jfreechart.PolygonDataset;
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4 import de.intevation.gnv.jfreechart.PolygonPlot;
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5 import de.intevation.gnv.jfreechart.PolygonRenderer;
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6 import de.intevation.gnv.jfreechart.PolygonSeries;
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7
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8 import de.intevation.gnv.math.AttributedXYColumns;
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9
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10 import de.intevation.gnv.raster.Palette;
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11
446
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12 import java.awt.Color;
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13 import java.awt.Paint;
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14
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15 import java.text.NumberFormat;
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16
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17 import java.util.HashSet;
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18 import java.util.Locale;
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19 import java.util.Map;
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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.axis.NumberAxis;
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24 import org.jfree.chart.axis.SymbolAxis;
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25 import org.jfree.chart.axis.ValueAxis;
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26
446
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27 import org.jfree.chart.plot.PlotOrientation;
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29 import org.jfree.chart.renderer.LookupPaintScale;
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30
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31 import org.jfree.chart.title.PaintScaleLegend;
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32 import org.jfree.chart.title.TextTitle;
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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 private Map<Integer, Paint> special;
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49
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50 public PalettePaintLookup(Palette palette) {
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51 this(palette, null);
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52 }
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53
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54 public PalettePaintLookup(
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55 Palette palette,
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56 Map<Integer, Paint> special
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57 ) {
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58 this.palette = palette;
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59 this.special = special;
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60 }
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61
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62 public Paint getPaint(int index) {
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63 if (special != null) {
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64 Paint paint = special.get(index);
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65 if (paint != null) {
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66 return paint;
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67 }
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68 }
446
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69 return index < 0
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70 ? Color.black
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71 : palette.getColor(index);
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72 }
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73 } // class PalettePaintLookup
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74
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75 public static class LocalizedLabelGenerator
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76 extends PolygonRenderer.DefaultLabelGenerator
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77 {
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78 protected NumberFormat format;
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79
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80 public LocalizedLabelGenerator() {
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81 }
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82
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83 public LocalizedLabelGenerator(NumberFormat format) {
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84 this.format = format;
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85 }
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86
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87 protected String toString(Object label) {
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88 return label instanceof Number
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89 ? format.format(((Number)label).doubleValue())
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90 : super.toString(label);
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91 }
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92 } // class LocalizedLabelGenerator
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93
446
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94 protected JFreeChart chart;
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95
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96 protected AttributedXYColumns columns;
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97 protected Map<Integer, Paint> special;
446
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98 protected Palette palette;
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99 protected Locale locale;
492
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100 protected ChartLabels labels;
446
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101
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102 public VerticalCrossSectionChart() {
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103 }
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104
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105 public VerticalCrossSectionChart(
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106 AttributedXYColumns columns,
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107 Palette palette,
492
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108 Locale locale,
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109 ChartLabels labels
446
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110 ) {
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111 this(columns, palette, null, locale, labels);
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112 }
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113
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114 public VerticalCrossSectionChart(
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115 AttributedXYColumns columns,
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116 Palette palette,
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117 Map<Integer, Paint> special,
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118 Locale locale,
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119 ChartLabels labels
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120 ) {
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121 this.columns = columns;
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122 this.palette = palette;
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123 this.special = special;
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124 this.locale = locale;
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125 this.labels = labels;
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126 }
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127
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128 protected JFreeChart createChart() {
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129
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130 boolean legendB = false;
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131 boolean tooltips = false;
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132 boolean urls = false;
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133
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134 PlotOrientation po = PlotOrientation.HORIZONTAL;
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135 PolygonDataset data = columns.getPolygonDataset();
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136
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137 HashSet<Integer> usedColors = new HashSet<Integer>();
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138
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139 for (int i = data.getSeriesCount()-1; i >= 0; --i) {
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140 PolygonSeries ps = data.getSeries(i);
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141 Integer fill = (Integer)ps.getAttribute("fill");
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142 if (fill != null
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143 && (special != null && !special.containsKey(fill))) {
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144 usedColors.add(fill);
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145 }
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146 }
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147
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148 NumberFormat format = NumberFormat.getInstance(locale);
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149 format.setMinimumFractionDigits(0);
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150 format.setMaximumFractionDigits(2);
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151
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152 PolygonRenderer renderer = new PolygonRenderer(
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153 new PalettePaintLookup(palette, special),
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154 new LocalizedLabelGenerator(format));
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155
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156 ValueAxis domainAxis = new NumberAxis(this.labels.getDomainAxisLabel());
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157 ValueAxis rangeAxis = new NumberAxis(this.labels.getRangeAxisLabel());
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158
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159 PolygonPlot plot = new PolygonPlot(
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160 data,
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161 renderer,
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162 domainAxis,
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163 rangeAxis,
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164 null);
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165
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166 plot.setOutlinePaint(Color.WHITE);
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167
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168 String [] labels = new String[usedColors.size()];
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169
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170 int colors = palette.getSize();
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171 LookupPaintScale lookupPaint =
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172 new LookupPaintScale(-0.5d, labels.length-0.5d, Color.white);
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173
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174 Color color = null;
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175
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176 for (int i = 0, j = labels.length-1; i < colors && j >= 0; i++) {
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177 if (usedColors.contains(i)) {
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178 Palette.Entry entry = palette.getEntryByIndex(i);
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179 color = entry.getColor();
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180 labels[j] = entry.getDescription();
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181 lookupPaint.add(j-0.5d, color);
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182 --j;
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183 }
446
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184 }
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185
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186 JFreeChart chart = new JFreeChart(
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187 this.labels.getTitle(),
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188 JFreeChart.DEFAULT_TITLE_FONT,
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189 plot,
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190 legendB);
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191
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192 chart.removeLegend();
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193 chart.addSubtitle(new TextTitle(this.labels.getSubtitle()));
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194
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195 SymbolAxis scale = new SymbolAxis(this.labels.getParameterName(), labels);
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196 scale.setRange(-1.5d, labels.length+0.5d);
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197 scale.setGridBandsVisible(false);
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198 scale.setPlot(plot);
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199
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200 PaintScaleLegend legend = new PaintScaleLegend(
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201 lookupPaint, scale);
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202 legend.setMargin(new RectangleInsets(3d, 10d, 3d, 10d));
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203 legend.setPosition(RectangleEdge.LEFT);
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204 legend.setAxisOffset(5d);
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205
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206 chart.addSubtitle(legend);
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207
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208 return chart;
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209 }
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210
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211 public JFreeChart generateChart() {
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212 if (chart == null) {
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213 chart = createChart();
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214 }
527
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215
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216 return chart;
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217 }
527
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218
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219 public void setBackgroundPaint(Paint paint) {
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220 chart.setBackgroundPaint(paint);
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221 }
446
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222 }
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223 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org