Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/AbstractXYLineChart.java @ 503:b951b14425fa

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Solved issue 129. Renamed i and j axis to 'West-East-Axis' and 'North-South-Axis'. gnv-artifacts/trunk@586 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Wed, 20 Jan 2010 15:48:31 +0000
parents 2413273f1c13
children d41c155db337
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 import java.util.Map;
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10
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11 import org.apache.log4j.Logger;
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12
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13 import org.jfree.chart.JFreeChart;
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14 import org.jfree.chart.ChartFactory;
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15 import org.jfree.chart.axis.Axis;
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16 import org.jfree.chart.axis.NumberAxis;
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17 import org.jfree.chart.axis.NumberTickUnit;
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18 import org.jfree.chart.axis.AxisLocation;
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19 import org.jfree.chart.plot.PlotOrientation;
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20 import org.jfree.chart.plot.XYPlot;
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21 import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
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22 import org.jfree.chart.title.TextTitle;
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23 import org.jfree.data.xy.XYDataset;
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24 import org.jfree.data.Range;
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25 import org.jfree.data.general.Series;
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26
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27 import de.intevation.gnv.geobackend.base.Result;
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28 import de.intevation.gnv.state.describedata.KeyValueDescibeData;
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30
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31 /**
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32 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de>
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33 */
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34 public abstract class AbstractXYLineChart
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35 extends AbstractChart
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36 {
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37 public static final double LOWER_MARGIN = 0.05D;
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38 public static final double UPPER_MARGIN = 0.05D;
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39
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40 private static Logger log = Logger.getLogger(AbstractXYLineChart.class);
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41
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42 protected static Color[] COLOR = {
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43 Color.black, Color.red, Color.green, Color.blue, Color.yellow,
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44 Color.gray, Color.orange, Color.pink, Color.cyan
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45 };
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46
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47 protected static int nextColor = 0;
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48
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49 protected PlotOrientation PLOT_ORIENTATION = PlotOrientation.VERTICAL;
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50
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51 /** Map to store datasets for each parameter */
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52 protected Map datasets;
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53
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54 /** Map to store max ranges of each parameter (axis.setAutoRange(true)
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55 * doesn't seem to work */
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56 protected Map ranges;
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57
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58 protected abstract void initData();
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59 protected abstract void addValue(Result row, Series series);
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60 protected abstract void addSeries(Series series, String label, int idx);
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61 protected abstract void localizeDomainAxis(Axis axis, Locale locale);
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62 protected abstract String createSeriesName(
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63 String breakPoint1,
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64 String breakPoint2,
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65 String breakPoint3
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66 );
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68
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69 public JFreeChart generateChart() {
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70 log.debug("generate XYLineChart");
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71 nextColor = 0;
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72
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73 if (chart != null)
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74 return chart;
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75
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76 initChart();
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78 chart.addSubtitle(new TextTitle(labels.getSubtitle()));
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80 theme.apply(chart);
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81 initData();
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82
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83 adjustPlot((XYPlot)chart.getPlot());
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84
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85 return chart;
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86 }
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89 protected void initChart() {
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90 chart = ChartFactory.createXYLineChart(
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91 labels.getTitle(),
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92 labels.getDomainAxisLabel(),
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93 null,
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94 null,
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95 PLOT_ORIENTATION,
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96 true,
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97 false,
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98 false
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99 );
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100 }
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102
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103 protected void prepareAxis(String seriesKey, int idx) {
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104 log.debug("prepare axis of xychart");
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106 XYPlot plot = chart.getXYPlot();
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107 Axis xAxis = plot.getDomainAxis();
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108 NumberAxis yAxis = new NumberAxis(seriesKey);
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109
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110 localizeDomainAxis(xAxis, locale);
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111 localizeRangeAxis(yAxis, locale);
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112
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113 // litte workarround to adjust the max range of axes.
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114 // NumberAxis.setAutoRange(true) doesn't seem to work properly.
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115 Range yRange = (Range) ranges.get(seriesKey);
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116 yAxis.setRange(Range.expand(yRange, LOWER_MARGIN, UPPER_MARGIN));
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117 log.debug("Max Range of dataset is: " + yRange.toString());
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118
297
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119 if (seriesKey.contains("richtung")) {
315
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120 yAxis.setTickUnit(new NumberTickUnit(30.0));
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121 yAxis.setUpperBound(360.0);
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122 yAxis.setLowerBound(0.0);
297
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123 }
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124 else {
315
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125 yAxis.setFixedDimension(10.0);
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126 yAxis.setAutoRangeIncludesZero(false);
297
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127 }
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128
364
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129 plot.setRangeAxis(idx, yAxis);
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130 yAxis.configure();
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131
297
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132 if (idx % 2 != 0)
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133 plot.setRangeAxisLocation(idx, AxisLocation.BOTTOM_OR_RIGHT);
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134 else
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135 plot.setRangeAxisLocation(idx, AxisLocation.BOTTOM_OR_LEFT);
327
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136 }
297
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137
327
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138
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139 protected void adjustRenderer(
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140 int idx,
334
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141 int seriesCount,
327
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142 boolean renderLines,
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143 boolean renderShapes
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144 ) {
334
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145 log.debug("Adjust render of series");
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146 XYLineAndShapeRenderer renderer = null;
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147 XYPlot plot = chart.getXYPlot();
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148
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149 try {
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150 renderer = (XYLineAndShapeRenderer)((XYLineAndShapeRenderer)
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151 (plot.getRenderer())).clone();
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152 }
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153 catch (CloneNotSupportedException cnse) {
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154 log.warn("Error while cloning renderer.", cnse);
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155 renderer = new XYLineAndShapeRenderer(renderLines, renderShapes);
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156 renderer.setBaseShape(new Ellipse2D.Double(-2,-2,4,4));
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157 }
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158
334
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159 for (int i = 0; i < seriesCount; i++) {
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160 renderer.setSeriesShape(i, renderer.getSeriesShape(0));
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161 renderer.setSeriesPaint(i, COLOR[nextColor%COLOR.length]);
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162 renderer.setSeriesShapesVisible(i, renderShapes);
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163 renderer.setSeriesLinesVisible(i, renderLines);
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164 nextColor++;
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165 }
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166 plot.setRenderer(idx, renderer);
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167 }
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168
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169
344
44adf8918155 Fade out range axis gridlines in charts if there are more than one axis.
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170 protected void adjustPlot(XYPlot plot) {
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171 if (plot.getRangeAxisCount() > 1)
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172 plot.setRangeGridlinesVisible(false);
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173 }
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174
44adf8918155 Fade out range axis gridlines in charts if there are more than one axis.
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175
315
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176 protected void localizeRangeAxis(Axis axis, Locale locale) {
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177 if (locale == null)
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178 return;
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179
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180 log.debug(
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181 "Set language of axis [" + axis.getLabel() + "] " +
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182 "to " + locale.toString()
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183 );
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184
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185 NumberFormat format = NumberFormat.getInstance(locale);
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186 ((NumberAxis) axis).setNumberFormatOverride(format);
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187 }
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188
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189
364
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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190 public Range getMaxRangeOfDataset(XYDataset dataset) {
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191 int seriesCount = dataset.getSeriesCount();
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192 double upper = Double.NEGATIVE_INFINITY;
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193 double lower = Double.POSITIVE_INFINITY;
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194
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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195 for (int i = 0; i < seriesCount; i++) {
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196 int itemCount = dataset.getItemCount(i);
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197
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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198 for (int j = 0; j < itemCount; j++) {
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199 Number num = dataset.getY(i, j);
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200
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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201 if (num != null) {
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202 double y = num.doubleValue();
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203 lower = y < lower ? y : lower;
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204 upper = y > upper ? y : upper;
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205 }
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206 }
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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207 }
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208
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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diff changeset
209 return new Range(lower, upper);
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210 }
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211
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212
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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diff changeset
213 public Range getMaxRangeOfDatasetWithMargin(
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diff changeset
214 XYDataset dataset,
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diff changeset
215 double percent
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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diff changeset
216 ) {
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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diff changeset
217 Range range = getMaxRangeOfDataset(dataset);
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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diff changeset
218 double length = range.getLength();
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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diff changeset
219 double upper = range.getUpperBound() + length /100 * percent;
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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220 double lower = range.getLowerBound() - length /100 * percent;
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221
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222 return new Range(lower, upper);
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223 }
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224
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225
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226 protected String findParameter(String label) {
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227 Iterator iter = parameters.iterator();
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228
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229 while (iter.hasNext()) {
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230 KeyValueDescibeData data = (KeyValueDescibeData) iter.next();
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231 String key = data.getValue();
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232
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233 if (label.indexOf(key) > -1)
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234 return key;
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235 }
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236
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237 return label;
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238 }
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239
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240
297
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241 protected String findValueTitle(Collection values, String id) {
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242 log.debug("find description of dataset");
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243
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244 if (values != null){
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245 Iterator it = values.iterator();
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246 while (it.hasNext()) {
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247 KeyValueDescibeData data = (KeyValueDescibeData) it.next();
315
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248
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249 if (id.equals(data.getKey()))
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250 return data.getValue();
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251 }
297
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252 }
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253 return "";
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254 }
364
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255
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256
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257 protected void storeMaxRange(double value, String parameter) {
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258 Range range = null;
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259
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260 range = ranges.containsKey(parameter)
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261 ? (Range) ranges.get(parameter)
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262 : new Range(value, value);
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263
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264 double lower = range.getLowerBound();
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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265 double upper = range.getUpperBound();
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266
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267 lower = value < lower ? value : lower;
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268 upper = value > upper ? value : upper;
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269
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270 ranges.put(parameter, new Range(lower, upper));
2413273f1c13 Workarround: Store lower and upper bounds of data while iterating over all data and set the max range of axes with these information. JFreeCharts method NumberAxis.setAutoRange(true) doesn't seem to work properly.
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271 }
297
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272 }
315
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273 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org