?? piechart3ddemo2.java
字號:
/* --------------------
* PieChart3DDemo2.java
* --------------------
* (C) Copyright 2002-2005, by Object Refinery Limited.
*
*/
package demo;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JPanel;
import javax.swing.Timer;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.Rotation;
/**
* A rotating 3D pie chart.
*/
public class PieChart3DDemo2 extends ApplicationFrame {
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public PieChart3DDemo2(String title) {
super(title);
JPanel chartPanel = createDemoPanel();
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a demo chart.
*
* @param dataset the dataset.
*
* @return A chart.
*/
private static JFreeChart createChart(PieDataset dataset) {
// create the chart...
JFreeChart chart = ChartFactory.createPieChart3D(
"Pie Chart 3D Demo 2", // chart title
dataset, // dataset
true, // include legend
false,
false
);
PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setStartAngle(270);
plot.setDirection(Rotation.ANTICLOCKWISE);
plot.setForegroundAlpha(0.60f);
plot.setInteriorGap(0.33);
return chart;
}
/**
* Creates a sample dataset for the demo.
*
* @return A sample dataset.
*/
private static PieDataset createDataset() {
DefaultPieDataset result = new DefaultPieDataset();
result.setValue("Java", new Double(43.2));
result.setValue("Visual Basic", new Double(10.0));
result.setValue("C/C++", new Double(17.5));
result.setValue("PHP", new Double(32.5));
result.setValue("Perl", new Double(12.5));
return result;
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
JFreeChart chart = createChart(createDataset());
Rotator rotator = new Rotator((PiePlot3D) chart.getPlot());
rotator.start();
return new ChartPanel(chart);
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
PieChart3DDemo2 demo = new PieChart3DDemo2("Pie Chart 3D Demo 2");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
/**
* The rotator.
*/
class Rotator extends Timer implements ActionListener {
/** The plot. */
private PiePlot3D plot;
/** The angle. */
private int angle = 270;
/**
* Constructor.
*
* @param plot the plot.
*/
Rotator(PiePlot3D plot) {
super(100, null);
this.plot = plot;
addActionListener(this);
}
/**
* Modifies the starting angle.
*
* @param event the action event.
*/
public void actionPerformed(ActionEvent event) {
this.plot.setStartAngle(this.angle);
this.angle = this.angle + 1;
if (this.angle == 360) {
this.angle = 0;
}
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -