分类： Java
2007-09-06 15:50:07
1:饼图：
package test;
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.plot.PiePlot;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
public class PieCharts extends ApplicationFrame{
public PieCharts(String s){
super(s);
setContentPane(createDemoPanel());
}
// 生成显示图表的面板
public static JPanel createDemoPanel(){
JFreeChart jfreechart = createChart(createDataset());
return new ChartPanel(jfreechart);
}
// 生成饼图数据集对象
public static PieDataset createDataset(){
DefaultPieDataset defaultpiedataset = new DefaultPieDataset();
defaultpiedataset.setValue("管理人员",10.02D);
defaultpiedataset.setValue("市场人员",20.23D);
defaultpiedataset.setValue("开发人员",60.02D);
defaultpiedataset.setValue("OEM人员",10.02D);
defaultpiedataset.setValue("其他人员",5.11D);
return defaultpiedataset;
}
//生成图表主对象JFreeChart
public static JFreeChart createChart(PieDataset piedataset){
//定义图表对象
JFreeChart jfreechart = ChartFactory.createPieChart("CityInfoPort公司组织架构图",piedataset,true,true,false);
//获得图表显示对象
PiePlot pieplot = (PiePlot)jfreechart.getPlot();
//设置图表标签字体
pieplot.setLabelFont(new Font("SansSerif",Font.BOLD,12));
pieplot.setNoDataMessage("No data available");
pieplot.setCircular(true);
pieplot.setLabelGap(0.01D);//间距
return jfreechart;
}
public static void main(String[] args){
PieCharts fjc = new PieCharts("CityInfoPort公司组织架构图");
fjc.pack();
RefineryUtilities.centerFrameOnScreen(fjc);
fjc.setVisible(true);
}
}
2：折线图
package test;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
public class LineCharts extends ApplicationFrame {
public LineCharts(String s) {
super(s);
setContentPane(createDemoLine());
}
public static void main(String[] args) {
LineCharts fjc = new LineCharts("折线图");
fjc.pack();
RefineryUtilities.centerFrameOnScreen(fjc);
fjc.setVisible(true);
}
// 生成显示图表的面板
public static JPanel createDemoLine() {
JFreeChart jfreechart = createChart(createDataset());
return new ChartPanel(jfreechart);
}
// 生成图表主对象JFreeChart
public static JFreeChart createChart(DefaultCategoryDataset linedataset) {
//定义图表对象
JFreeChart chart = ChartFactory.createLineChart("折线图", // chart title
"时间", // domain axis label
"销售额(百万)", // range axis label
linedataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
CategoryPlot plot = chart.getCategoryPlot();
// customise the range axis...
NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
rangeAxis.setAutoRangeIncludesZero(true);
rangeAxis.setUpperMargin(0.20);
rangeAxis.setLabelAngle(Math.PI / 2.0);
return chart;
}
//生成数据
public static DefaultCategoryDataset createDataset() {
DefaultCategoryDataset linedataset = new DefaultCategoryDataset();
// 各曲线名称
String series1 = "冰箱";
String series2 = "彩电";
String series3 = "洗衣机";
// 横轴名称(列名称)
String type1 = "1月";
String type2 = "2月";
String type3 = "3月";
linedataset.addValue(0.0, series1, type1);
linedataset.addValue(4.2, series1, type2);
linedataset.addValue(3.9, series1, type3);
linedataset.addValue(1.0, series2, type1);
linedataset.addValue(5.2, series2, type2);
linedataset.addValue(7.9, series2, type3);
linedataset.addValue(2.0, series3, type1);
linedataset.addValue(9.2, series3, type2);
linedataset.addValue(8.9, series3, type3);
return linedataset;
}
}
3：柱状图：
package test;
import java.awt.Color;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer3D;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
public class BarCharts extends ApplicationFrame {
public BarCharts(String s) {
super(s);
setContentPane(createDemoBar());
}
// 生成显示图表的面板
public static JPanel createDemoBar() {
JFreeChart jfreechart = createChart(createDataset());
return new ChartPanel(jfreechart);
}
// 生成图表主对象JFreeChart
public static JFreeChart createChart(CategoryDataset dataset) {
JFreeChart chart = ChartFactory.createBarChart3D("水果销量统计图", //建立3D柱状图
"水果",//横轴名称
"销量",//纵轴名称
dataset,//数据集
PlotOrientation.VERTICAL,//纵向显示
true,//显示每个颜色柱子的柱名
false, false);
CategoryPlot plot = chart.getCategoryPlot();//设置图的高级属性
BarRenderer3D renderer = new BarRenderer3D();//3D属性修改
renderer.setBaseOutlinePaint(Color.BLACK);//设置边框颜色为black
renderer.setWallPaint(Color.gray); //设置wall的颜色为gray
renderer
.setItemLabelGenerator(new StandardCategoryItemLabelGenerator());//设置柱顶数据,API中居然没有StandardCategoryItemLabelGenerator这个类
//renderer.setItemLabelFont(new Font("黑体",Font.PLAIN,12));//设置柱顶数据字体
renderer.setItemLabelsVisible(true);//打开ItemLabel开关
plot.setRenderer(renderer);//将修改后的属性值保存到图中
plot.setForegroundAlpha(0.6f);//柱的透明度
return chart;
}
// 生成数据
public static CategoryDataset createDataset() {
double[][] data = new double[][] { { 672, 766, 223, 540, 126 },
{ 325, 521, 210, 340, 106 }, { 332, 256, 523, 240, 526 } };// 设置数据
String[] rowKeys = { "苹果", "梨子", "葡萄" };// 行标志
String[] columnKeys = { "北京", "上海", "广州", "成都", "深圳" };// 列标志
CategoryDataset linedataset = DatasetUtilities.createCategoryDataset(
rowKeys, columnKeys, data); // 建立数据集
return linedataset;
}
public static void main(String[] args) {
BarCharts fjc = new BarCharts("柱状图");
fjc.pack();
RefineryUtilities.centerFrameOnScreen(fjc);
fjc.setVisible(true);
}
}