1、导入包
jcommon-1.0.23.jar
jfreechart-1.0.19.jar
2、程序执行结果
3、部分源程序
// 源代码在github上，地址：https://github.com/MasonYyp/GenerateGraphic/tree/master/
public class OverlaidDrawLineScatter extends ApplicationFrame {
private static final long serialVersionUID = 1L;
public OverlaidDrawLineScatter(String title) {
super(title);
JFreeChart chart = createOverlaidChart();
ChartPanel panel = new ChartPanel(chart, true, true, true, true, true);
panel.setPreferredSize(new java.awt.Dimension(800, 500));
setContentPane(panel);
}
/**
* Creates an overlaid chart.
*
* @return The chart.
*/
private JFreeChart createOverlaidChart() {
// Add first data set and rendererLine
DefaultXYDataset dataLine = createDatasetLine();
XYItemRenderer rendererLine = new XYLineAndShapeRenderer();
NumberAxis XAxis = new NumberAxis("X 值");
NumberAxis YAxis = new NumberAxis("Y 值");
NumberTickUnit unit=new NumberTickUnit(0.5);
XAxis.setTickUnit(unit);
YAxis.setTickUnit(unit);
// create plot
XYPlot plot = new XYPlot(dataLine, XAxis, YAxis, rendererLine);
// Add second data set and rendererScatter
DefaultXYDataset dataScatter = createDatasetScatter();
XYItemRenderer rendererScatter = new XYShapeRenderer();
plot.setDataset(1, dataScatter);
plot.setRenderer(1, rendererScatter);
// return a new chart containing the overlaid plot
return new JFreeChart("线性拟合", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
}
/**
* Generate the dataset
* @return The dataset.
*/
private DefaultXYDataset createDatasetLine() {
/*
DefaultXYDataset dataset = new DefaultXYDataset();
double[][] data= {{1,2,3},{4,5,6}};
dataset.addSeries("拟合数据", data);
return dataset;
}
private DefaultXYDataset createDatasetScatter() {
DefaultXYDataset dataset = new DefaultXYDataset();
double[][] data= {{1,2,3},{4.6,4.8,6.8}};
dataset.addSeries("原始数据", data);
return dataset;
}
public static void main(final String[] args) {
OverlaidDrawLineScatter demo = new OverlaidDrawLineScatter("工程数据线性拟合");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}