?? xyareachartdemo1.java
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/* --------------------
* XYAreaChartDemo.java
* --------------------
* (C) Copyright 2002-2004, 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.annotations.XYPointerAnnotation;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.TextAnchor;
/**
* A simple demonstration application showing how to create an area chart.
*/
public class XYAreaChartDemo1 extends ApplicationFrame {
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public XYAreaChartDemo1(String title) {
super(title);
XYDataset dataset = createDataset();
JFreeChart chart = createChart(dataset);
ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
private static XYDataset createDataset() {
XYSeries series1 = new XYSeries("Random 1");
series1.add(new Integer(1), new Double(500.2));
series1.add(new Integer(2), new Double(694.1));
series1.add(new Integer(3), new Double(-734.4));
series1.add(new Integer(4), new Double(453.2));
series1.add(new Integer(5), new Double(500.2));
series1.add(new Integer(6), new Double(300.7));
series1.add(new Integer(7), new Double(734.4));
series1.add(new Integer(8), new Double(453.2));
XYSeries series2 = new XYSeries("Random 2");
series2.add(new Integer(1), new Double(700.2));
series2.add(new Integer(2), new Double(534.1));
series2.add(new Integer(3), new Double(323.4));
series2.add(new Integer(4), new Double(125.2));
series2.add(new Integer(5), new Double(653.2));
series2.add(new Integer(6), new Double(432.7));
series2.add(new Integer(7), new Double(564.4));
series2.add(new Integer(8), new Double(322.2));
XYSeriesCollection dataset = new XYSeriesCollection();
dataset.addSeries(series1);
dataset.addSeries(series2);
dataset.setIntervalWidth(0.0);
return dataset;
}
/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return A chart.
*/
private static JFreeChart createChart(XYDataset dataset) {
JFreeChart chart = ChartFactory.createXYAreaChart(
"XY Area Chart Demo",
"Domain (X)", "Range (Y)",
dataset,
PlotOrientation.VERTICAL,
true, // legend
true, // tool tips
false // URLs
);
chart.setBackgroundPaint(Color.white);
XYPlot plot = (XYPlot) chart.getPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setForegroundAlpha(0.65f);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
ValueAxis domainAxis = plot.getDomainAxis();
domainAxis.setTickMarkPaint(Color.black);
domainAxis.setLowerMargin(0.0);
domainAxis.setUpperMargin(0.0);
ValueAxis rangeAxis = plot.getRangeAxis();
rangeAxis.setTickMarkPaint(Color.black);
XYPointerAnnotation pointer = new XYPointerAnnotation(
"Test", 5.0, -500.0, 3.0 * Math.PI / 4.0
);
pointer.setTipRadius(0.0);
pointer.setBaseRadius(35.0);
pointer.setFont(new Font("SansSerif", Font.PLAIN, 9));
pointer.setPaint(Color.blue);
pointer.setTextAnchor(TextAnchor.HALF_ASCENT_RIGHT);
plot.addAnnotation(pointer);
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) {
XYAreaChartDemo1 demo = new XYAreaChartDemo1("XY Area Chart Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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