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package com.javasrc.charts;
// Import the Swing classes
import java.awt.*;
import javax.swing.*;
// Import the JFreeChart classes
import org.jfree.chart.*;
import org.jfree.chart.plot.*;
import org.jfree.data.general.*;
public class PieChartExample extends JPanel
{
// Holds the data
private DefaultPieDataset dataset = new DefaultPieDataset();
// Create a set of charts
private JFreeChart chart1;
private JFreeChart chart2;
private JFreeChart chart3;
private JFreeChart chart4;
// Create a set of panels that can show charts
private ChartPanel panel1;
private ChartPanel panel2;
private ChartPanel panel3;
private ChartPanel panel4;
public PieChartExample()
{
// Initialize the dataset
dataset.setValue( "California", new Double( 10.0 ) );
dataset.setValue( "Arizona", new Double( 8.0 ) );
dataset.setValue( "New Mexico", new Double( 8.0 ) );
dataset.setValue( "Texas", new Double( 40.0 ) );
dataset.setValue( "Louisiana", new Double( 8.0 ) );
dataset.setValue( "Mississippi", new Double( 4.0 ) );
dataset.setValue( "Alabama", new Double( 2.0 ) );
dataset.setValue( "Florida", new Double( 20.0 ) );
// Create the charts
chart1 = ChartFactory.createPieChart(
"Driving Time Spent Per State (Flat Pie Chart)", // The chart title
dataset, // The dataset for the chart
true, // Is a legend required?
true, // Use tooltips
false // Configure chart to generate URLs?
);
chart2 = ChartFactory.createPieChart(
"Driving Time Spent Per State (Exploded Pie Chart)", // The chart title
dataset, // The dataset for the chart
true, // Is a legend required?
true, // Use tooltips
false // Configure chart to generate URLs?
);
PiePlot plot = ( PiePlot )chart2.getPlot();
plot.setExplodePercent( 3, 0.25 );
chart3 = ChartFactory.createPieChart3D(
"Driving Time Spent Per State (3D Pie Chart)", // The chart title
dataset, // The dataset for the chart
true, // Is a legend required?
true, // Use tooltips
false // Configure chart to generate URLs?
);
chart4 = ChartFactory.createPieChart3D(
"Driving Time Spent Per State (3D with Transparency)", // The chart title
dataset, // The dataset for the chart
true, // Is a legend required?
true, // Use tooltips
false // Configure chart to generate URLs?
);
PiePlot3D plot4 = ( PiePlot3D )chart4.getPlot();
plot4.setForegroundAlpha( 0.6f );
// Create this panel
this.setLayout( new GridLayout( 2, 2 ) );
this.panel1 = new ChartPanel( chart1 );
this.panel2 = new ChartPanel( chart2 );
this.panel3 = new ChartPanel( chart3 );
this.panel4 = new ChartPanel( chart4 );
this.add( panel1 );
this.add( panel2 );
this.add( panel3 );
this.add( panel4 );
}
public static void main( String[] args )
{
JFrame frame = new JFrame( "My Trip Driving From CA to FL..." );
PieChartExample chart = new PieChartExample();
frame.getContentPane().add( chart, BorderLayout.CENTER );
frame.setSize( 640, 480 );
frame.setVisible( true );
frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}
} |
