?? xyseriesdemo3.java
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/* ------------------
* XYSeriesDemo3.java
* ------------------
* (C) Copyright 2004, by Object Refinery Limited.
*
*/
package demo;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.IntervalMarker;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.IntervalXYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.Layer;
import org.jfree.ui.RectangleAnchor;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.TextAnchor;
/**
* This demo shows a simple bar chart created using the {@link XYSeriesCollection} dataset.
*/
public class XYSeriesDemo3 extends ApplicationFrame {
/**
* Creates a new demo instance.
*
* @param title the frame title.
*/
public XYSeriesDemo3(String title) {
super(title);
IntervalXYDataset dataset = createDataset();
JFreeChart chart = createChart(dataset);
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return A sample dataset.
*/
private static IntervalXYDataset createDataset() {
XYSeries series = new XYSeries("Random Data");
series.add(1.0, 400.2);
series.add(5.0, 294.1);
series.add(4.0, 100.0);
series.add(12.5, 734.4);
series.add(17.3, 453.2);
series.add(21.2, 500.2);
series.add(21.9, null);
series.add(25.6, 734.4);
series.add(30.0, 453.2);
XYSeriesCollection dataset = new XYSeriesCollection(series);
return dataset;
}
/**
* Creates a sample chart.
*
* @param dataset the dataset.
*
* @return A sample chart.
*/
private static JFreeChart createChart(IntervalXYDataset dataset) {
JFreeChart chart = ChartFactory.createXYBarChart(
"XY Series Demo",
"X",
false,
"Y",
dataset,
PlotOrientation.VERTICAL,
true,
true,
false
);
XYPlot plot = (XYPlot) chart.getPlot();
IntervalMarker target = new IntervalMarker(400.0, 700.0);
target.setLabel("Target Range");
target.setLabelFont(new Font("SansSerif", Font.ITALIC, 11));
target.setLabelAnchor(RectangleAnchor.LEFT);
target.setLabelTextAnchor(TextAnchor.CENTER_LEFT);
target.setPaint(new Color(222, 222, 255, 128));
plot.addRangeMarker(target, Layer.BACKGROUND);
return chart;
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
JFreeChart chart = createChart(createDataset());
return new ChartPanel(chart);
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
XYSeriesDemo3 demo = new XYSeriesDemo3("XY Series Demo 3");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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