/**
* Copyright (c) 2010-2020 by skzr.org
* All rights reserved.
* @Author skzr.org(E-mail:skzr.org@gmail.com)
* @date 2010-11-1 下午10:55:07
*/
package org.skzr.chart4me.demo.applet;
import java.awt.Color;
import java.awt.Font;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import javax.swing.JApplet;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @jdk 1.6
* @author skzr.org(E-mail:skzr.org@gmail.com)
* @version 1.0.0
*/
public class HelloJFreeChart extends JApplet {
private static final long serialVersionUID = 1L;
protected final transient Logger logger = LoggerFactory
.getLogger(getClass());
private static PieDataset getDataSet() {
DefaultPieDataset dataset = new DefaultPieDataset();
dataset.setValue(" 市场前期", new Double(10));
dataset.setValue(" 立项", new Double(15));
dataset.setValue(" 计划", new Double(10));
dataset.setValue(" 需求与设计", new Double(10));
dataset.setValue(" 执行控制", new Double(35));
dataset.setValue(" 收尾", new Double(10));
dataset.setValue(" 运维", new Double(10));
return dataset;
}
private void buildChart() {
PieDataset dataset = getDataSet();
JFreeChart chart = ChartFactory.createPieChart3D(" 项目进度分布", dataset, true, true, false);
PiePlot3D plot = (PiePlot3D) chart.getPlot();
// 图片中显示百分比:默认方式
// plot.setLabelGenerator(new
// StandardPieSectionLabelGenerator(StandardPieToolTipGenerator.DEFAULT_TOOLTIP_FORMAT));
// 图片中显示百分比:自定义方式，{0} 表示选项， {1} 表示数值， {2} 表示所占比例 ,小数点后两位
plot.setLabelGenerator(new StandardPieSectionLabelGenerator(
"{0}={1}({2})", NumberFormat.getNumberInstance(),
new DecimalFormat("0.00%")));
// 图例显示百分比:自定义方式， {0} 表示选项， {1} 表示数值， {2} 表示所占比例
plot.setLegendLabelGenerator(new StandardPieSectionLabelGenerator(
"{0}={1}({2})"));
// 设置背景色为白色
chart.setBackgroundPaint(Color.white);
// 指定图片的透明度(0.0-1.0)
plot.setForegroundAlpha(1.0f);
// 指定显示的饼图上圆形(false)还椭圆形(true)
plot.setCircular(true);
// 设置图标题的字体
Font font = new Font(" 黑体", Font.CENTER_BASELINE, 20);
TextTitle title = new TextTitle(" 项目状态分布");
title.setFont(font);
chart.setTitle(title);
ChartPanel panel = new ChartPanel(chart);
add(panel);
// ChartUtilities.writeChartAsJPEG(fos_jpg, 100, chart, 640, 480, null);
}
@Override
public void init() {
logger.info("JFreeChart你好!");
buildChart();
}
}