Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractXYLineChart.java @ 331:1c427acb6c76

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Added subtitles to charts. gnv-artifacts/trunk@397 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Fri, 04 Dec 2009 15:30:20 +0000
parents 22a6493e8460
children 19571fd1d0e8
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.awt.Color;
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4 import java.awt.geom.Ellipse2D;
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5 import java.text.NumberFormat;
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6 import java.util.Collection;
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7 import java.util.Iterator;
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8 import java.util.Locale;
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9
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10 import org.apache.log4j.Logger;
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11
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12 import org.jfree.chart.JFreeChart;
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13 import org.jfree.chart.ChartFactory;
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14 import org.jfree.chart.axis.Axis;
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15 import org.jfree.chart.axis.NumberAxis;
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16 import org.jfree.chart.axis.NumberTickUnit;
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17 import org.jfree.chart.axis.AxisLocation;
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18 import org.jfree.chart.plot.PlotOrientation;
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19 import org.jfree.chart.plot.XYPlot;
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20 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
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21 import org.jfree.chart.title.TextTitle;
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22 import org.jfree.data.general.Series;
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23
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24 import de.intevation.gnv.geobackend.base.Result;
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25 import de.intevation.gnv.transition.describedata.KeyValueDescibeData;
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26
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27 /**
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28 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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29 */
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30 public abstract class AbstractXYLineChart
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31 extends AbstractChart
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32 {
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33 private static Logger log = Logger.getLogger(AbstractXYLineChart.class);
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34
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35 protected static Color[] COLOR = {
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36 Color.black, Color.red, Color.green, Color.blue
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37 };
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38
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39 protected PlotOrientation PLOT_ORIENTATION = PlotOrientation.VERTICAL;
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40
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41 protected abstract void initData();
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42 protected abstract void addValue(Result row, Series series);
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43 protected abstract void addSeries(Series series, int idx);
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44 protected abstract void localizeDomainAxis(Axis axis, Locale locale);
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45 protected abstract String createSeriesName(
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46 String breakPoint1,
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47 String breakPoint2,
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48 String breakPoint3
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49 );
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50
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51
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52 public JFreeChart generateChart() {
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53 log.debug("generate XYLineChart");
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54
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55 if (chart != null)
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56 return chart;
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57
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58 chart = ChartFactory.createXYLineChart(
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59 labels.getTitle(),
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60 labels.getDomainAxisLabel(),
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61 null,
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62 null,
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63 PLOT_ORIENTATION,
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64 true,
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65 false,
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66 false
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67 );
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68
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69 chart.addSubtitle(new TextTitle(labels.getSubtitle()));
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70
304
a16d337c5678 The style of charts can be configured with ChartThemes using XML configuration files.
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71 theme.apply(chart);
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72 initData();
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73
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74 return chart;
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75 }
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76
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77
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78 protected void prepareAxis(String seriesKey, int idx) {
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79 log.debug("prepare axis of xychart");
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80
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81 XYPlot plot = chart.getXYPlot();
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82 Axis xAxis = plot.getDomainAxis();
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83 NumberAxis yAxis = new NumberAxis(seriesKey);
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84
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85 localizeDomainAxis(xAxis, locale);
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86 localizeRangeAxis(yAxis, locale);
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87
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88 if (seriesKey.contains("richtung")) {
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89 yAxis.setTickUnit(new NumberTickUnit(30.0));
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90 yAxis.setUpperBound(360.0);
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91 yAxis.setLowerBound(0.0);
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92 plot.setRangeAxis(idx, yAxis);
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93 }
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94 else {
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95 yAxis.setFixedDimension(10.0);
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96 yAxis.setAutoRangeIncludesZero(false);
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97 plot.setRangeAxis(idx, yAxis);
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98 yAxis.configure();
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99 }
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100
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101 if (idx % 2 != 0)
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102 plot.setRangeAxisLocation(idx, AxisLocation.BOTTOM_OR_RIGHT);
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103 else
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104 plot.setRangeAxisLocation(idx, AxisLocation.BOTTOM_OR_LEFT);
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105 plot.mapDatasetToRangeAxis(idx, idx);
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106 }
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107
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108
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109 protected void adjustRenderer(
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110 int idx,
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111 boolean renderLines,
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112 boolean renderShapes
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113 ) {
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114 XYLineAndShapeRenderer renderer = null;
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115 XYPlot plot = chart.getXYPlot();
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116
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117 try {
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118 renderer = (XYLineAndShapeRenderer)((XYLineAndShapeRenderer)
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119 (plot.getRenderer())).clone();
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120 }
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121 catch (CloneNotSupportedException cnse) {
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122 log.warn("Error while cloning renderer.", cnse);
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123 renderer = new XYLineAndShapeRenderer(renderLines, renderShapes);
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124 renderer.setBaseShape(new Ellipse2D.Double(-2,-2,4,4));
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125 }
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126
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127 renderer.setSeriesPaint(0, COLOR[idx%COLOR.length]);
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128 renderer.setSeriesShapesVisible(0, renderShapes);
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129 renderer.setSeriesLinesVisible(0, renderLines);
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130 plot.setRenderer(idx, renderer);
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131 }
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132
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133
315
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134 protected void localizeRangeAxis(Axis axis, Locale locale) {
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135 if (locale == null)
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136 return;
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137
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138 log.debug(
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139 "Set language of axis [" + axis.getLabel() + "] " +
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140 "to " + locale.toString()
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141 );
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142
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143 NumberFormat format = NumberFormat.getInstance(locale);
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144 ((NumberAxis) axis).setNumberFormatOverride(format);
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145 }
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146
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147
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148 protected String findValueTitle(Collection values, String id) {
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149 log.debug("find description of dataset");
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150
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151 if (values != null){
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152 Iterator it = values.iterator();
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153 while (it.hasNext()) {
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154 KeyValueDescibeData data = (KeyValueDescibeData) it.next();
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155
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156 if (id.equals(data.getKey()))
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157 return data.getValue();
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158 }
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159 }
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160 return "";
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161 }
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162 }
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163 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org