Java 饼形图
package pie;
import java.awt.Font;
import java.awt.RenderingHints;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.ui.RefineryUtilities;
public class Jfree {
public static void createPieChart() {
// 通过工程创建3D饼图
JFreeChart pieChart = ChartFactory.createPieChart("最受欢迎的偶像剧2008-2010",
createDataset(), true, true, false);
pieChart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
// 得到3D饼图的plot对象
PiePlot piePlot = (PiePlot) pieChart.getPlot();
// 设置透明度
piePlot.setForegroundAlpha(0.5f);
piePlot.setLabelFont((new Font("宋体", Font.PLAIN, 12)));
// 设置标题字体
pieChart.getTitle().setFont(new Font("隶书", Font.BOLD, 20));
// 设置图例类别字体
pieChart.getLegend().setItemFont(new Font("宋体", Font.BOLD, 14));
ChartFrame frame = new ChartFrame("TestPieChart", pieChart);
frame.pack();
RefineryUtilities.centerFrameOnScreen(frame);
frame.setVisible(true);
}
public static DefaultPieDataset createDataset() {
DefaultPieDataset pieDataset = new DefaultPieDataset();
pieDataset.setValue("霹雳MIT", 2.80);
pieDataset.setValue("桃花爱无敌", 3.63);
pieDataset.setValue("恶作剧之吻 ", 2.84);
return pieDataset;
}
public static void main(String[] args) {
createPieChart();
}
}