Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractXYLineChart.java @ 333:19571fd1d0e8

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Sourced ChartFactory call out to an own method, which is overriden by TimeSeriesChart. gnv-artifacts/trunk@399 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Mon, 07 Dec 2009 10:33:31 +0000
parents 1c427acb6c76
children e37930705daa
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 /**
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29 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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30 */
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31 public abstract class AbstractXYLineChart
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32 extends AbstractChart
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33 {
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34 private static Logger log = Logger.getLogger(AbstractXYLineChart.class);
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35
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36 protected static Color[] COLOR = {
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37 Color.black, Color.red, Color.green, Color.blue
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38 };
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39
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40 protected PlotOrientation PLOT_ORIENTATION = PlotOrientation.VERTICAL;
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41
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42 protected abstract void initData();
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43 protected abstract void addValue(Result row, Series series);
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44 protected abstract void addSeries(Series series, int idx);
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45 protected abstract void localizeDomainAxis(Axis axis, Locale locale);
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46 protected abstract String createSeriesName(
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47 String breakPoint1,
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48 String breakPoint2,
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49 String breakPoint3
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50 );
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51
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52
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53 public JFreeChart generateChart() {
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54 log.debug("generate XYLineChart");
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55
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56 if (chart != null)
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57 return chart;
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58
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59 initChart();
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60
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61 chart.addSubtitle(new TextTitle(labels.getSubtitle()));
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62
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63 theme.apply(chart);
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64 initData();
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65
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66 return chart;
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67 }
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68
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69
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70 protected void initChart() {
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71 chart = ChartFactory.createXYLineChart(
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72 labels.getTitle(),
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73 labels.getDomainAxisLabel(),
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74 null,
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75 null,
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76 PLOT_ORIENTATION,
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77 true,
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78 false,
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79 false
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80 );
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81 }
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82
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83
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84 protected void prepareAxis(String seriesKey, int idx) {
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85 log.debug("prepare axis of xychart");
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86
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87 XYPlot plot = chart.getXYPlot();
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88 Axis xAxis = plot.getDomainAxis();
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89 NumberAxis yAxis = new NumberAxis(seriesKey);
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90
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91 localizeDomainAxis(xAxis, locale);
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92 localizeRangeAxis(yAxis, locale);
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93
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94 if (seriesKey.contains("richtung")) {
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95 yAxis.setTickUnit(new NumberTickUnit(30.0));
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96 yAxis.setUpperBound(360.0);
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97 yAxis.setLowerBound(0.0);
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98 plot.setRangeAxis(idx, yAxis);
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99 }
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100 else {
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101 yAxis.setFixedDimension(10.0);
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102 yAxis.setAutoRangeIncludesZero(false);
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103 plot.setRangeAxis(idx, yAxis);
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104 yAxis.configure();
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105 }
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106
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107 if (idx % 2 != 0)
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108 plot.setRangeAxisLocation(idx, AxisLocation.BOTTOM_OR_RIGHT);
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109 else
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110 plot.setRangeAxisLocation(idx, AxisLocation.BOTTOM_OR_LEFT);
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111 plot.mapDatasetToRangeAxis(idx, idx);
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112 }
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113
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114
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115 protected void adjustRenderer(
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116 int idx,
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117 boolean renderLines,
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118 boolean renderShapes
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119 ) {
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120 XYLineAndShapeRenderer renderer = null;
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121 XYPlot plot = chart.getXYPlot();
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122
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123 try {
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124 renderer = (XYLineAndShapeRenderer)((XYLineAndShapeRenderer)
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125 (plot.getRenderer())).clone();
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126 }
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127 catch (CloneNotSupportedException cnse) {
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128 log.warn("Error while cloning renderer.", cnse);
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129 renderer = new XYLineAndShapeRenderer(renderLines, renderShapes);
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130 renderer.setBaseShape(new Ellipse2D.Double(-2,-2,4,4));
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131 }
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132
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133 renderer.setSeriesPaint(0, COLOR[idx%COLOR.length]);
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134 renderer.setSeriesShapesVisible(0, renderShapes);
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135 renderer.setSeriesLinesVisible(0, renderLines);
297
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136 plot.setRenderer(idx, renderer);
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137 }
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138
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139
315
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140 protected void localizeRangeAxis(Axis axis, Locale locale) {
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141 if (locale == null)
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142 return;
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143
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144 log.debug(
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145 "Set language of axis [" + axis.getLabel() + "] " +
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146 "to " + locale.toString()
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147 );
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148
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149 NumberFormat format = NumberFormat.getInstance(locale);
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150 ((NumberAxis) axis).setNumberFormatOverride(format);
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151 }
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152
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153
297
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154 protected String findValueTitle(Collection values, String id) {
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155 log.debug("find description of dataset");
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156
307
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157 if (values != null){
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158 Iterator it = values.iterator();
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159 while (it.hasNext()) {
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160 KeyValueDescibeData data = (KeyValueDescibeData) it.next();
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161
307
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162 if (id.equals(data.getKey()))
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163 return data.getValue();
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164 }
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165 }
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166 return "";
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167 }
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168 }
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169 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org