Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/VerticalCrossSectionChart.java @ 517:96a1e92e7ed2

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If the number of data points to generate a "Horizontalschnitt" is above a given threshold, they are culled against an 5% extented bounding box of the interpolation area. gnv-artifacts/trunk@611 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sat, 23 Jan 2010 17:42:04 +0000
parents 79e80c289018
children 1bf058f1a2d1
rev   line source
446
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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
446
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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134 domainAxis,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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135 rangeAxis,
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136 null);
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137
449
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138 String [] labels = new String[usedColors.size()];
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139
446
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140 int colors = palette.getSize();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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141 LookupPaintScale lookupPaint =
449
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142 new LookupPaintScale(-0.5d, labels.length-0.5d, Color.white);
446
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143
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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144 Color color = null;
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145
449
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146 for (int i = 0, j = labels.length-1; i < colors && j >= 0; i++) {
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parents: 446
diff changeset
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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parents: 446
diff changeset
152 --j;
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parents: 446
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153 }
446
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154 }
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155
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156 JFreeChart chart = new JFreeChart(
492
79e80c289018 Added labels and titles to 'Profilschnitt' charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 450
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157 this.labels.getTitle(),
446
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158 JFreeChart.DEFAULT_TITLE_FONT,
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159 plot,
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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160 legendB);
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161
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162 chart.removeLegend();
492
79e80c289018 Added labels and titles to 'Profilschnitt' charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 450
diff changeset
163 chart.addSubtitle(new TextTitle(this.labels.getSubtitle()));
446
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164
492
79e80c289018 Added labels and titles to 'Profilschnitt' charts.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 450
diff changeset
165 SymbolAxis scale = new SymbolAxis(this.labels.getParameterName(), labels);
449
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166 scale.setRange(-1.5d, labels.length+0.5d);
446
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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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parents:
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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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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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174 legend.setAxisOffset(5d);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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175
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176 chart.addSubtitle(legend);
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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177
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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178 return chart;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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179 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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180
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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181 public JFreeChart generateChart() {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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182 if (chart == null) {
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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183 chart = createChart();
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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184 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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185 return chart;
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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186 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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187 }
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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188 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org