?? xybarchartdemo2.java
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/* --------------------
* XYBarChartDemo2.java
* --------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited.
*
*/
package demo;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.ClusteredXYBarRenderer;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.IntervalXYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a vertical bar chart.
*/
public class XYBarChartDemo2 extends ApplicationFrame {
/**
* Constructs the demo application.
*
* @param title the frame title.
*/
public XYBarChartDemo2(String title) {
super(title);
JPanel chartPanel = createDemoPanel();
chartPanel.setPreferredSize(new java.awt.Dimension(500, 300));
setContentPane(chartPanel);
}
private static IntervalXYDataset createDataset() {
TimeSeries series1 = new TimeSeries("Series 1", Day.class);
series1.add(new Day(1, 1, 2003), 54.3);
series1.add(new Day(2, 1, 2003), 20.3);
series1.add(new Day(3, 1, 2003), 43.4);
series1.add(new Day(4, 1, 2003), -12.0);
TimeSeries series2 = new TimeSeries("Series 2", Day.class);
series2.add(new Day(1, 1, 2003), 8.0);
series2.add(new Day(2, 1, 2003), 16.0);
series2.add(new Day(3, 1, 2003), 21.0);
series2.add(new Day(4, 1, 2003), 5.0);
TimeSeriesCollection dataset = new TimeSeriesCollection();
dataset.addSeries(series1);
dataset.addSeries(series2);
return dataset;
}
/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return The chart.
*/
private static JFreeChart createChart(IntervalXYDataset dataset) {
JFreeChart chart = ChartFactory.createXYBarChart(
"XY Bar Chart Demo 2", // chart title
"Date", // domain axis label
true,
"Y", // range axis label
dataset, // data
PlotOrientation.VERTICAL,
true, // include legend
true,
false
);
XYPlot plot = chart.getXYPlot();
ClusteredXYBarRenderer r = new ClusteredXYBarRenderer();
plot.setRenderer(r);
return chart;
}
/**
* Creates a panel for the demo.
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
return new ChartPanel(createChart(createDataset()));
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
XYBarChartDemo2 demo = new XYBarChartDemo2("XY Bar Chart Demo 2");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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