scatterplotdemo3.java

jfreechart 1.0.6 demo 源代码

package demo;

import java.awt.Dimension;
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.awt.geom.Point2D;
import java.io.PrintStream;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.*;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

// Referenced classes of package demo:
//            SampleXYDataset2

public class ScatterPlotDemo3 extends ApplicationFrame
{
    static class MyChartMouseListener
        implements ChartMouseListener
    {

        public void chartMouseClicked(ChartMouseEvent chartmouseevent)
        {
            int i = chartmouseevent.getTrigger().getX();
            int j = chartmouseevent.getTrigger().getY();
            Point2D point2d = panel.translateScreenToJava2D(new Point(i, j));
            XYPlot xyplot = (XYPlot)panel.getChart().getPlot();
            ChartRenderingInfo chartrenderinginfo = panel.getChartRenderingInfo();
            java.awt.geom.Rectangle2D rectangle2d = chartrenderinginfo.getPlotInfo().getDataArea();
            double d = xyplot.getDomainAxis().java2DToValue(point2d.getX(), rectangle2d, xyplot.getDomainAxisEdge());
            double d1 = xyplot.getRangeAxis().java2DToValue(point2d.getY(), rectangle2d, xyplot.getRangeAxisEdge());
            ValueAxis valueaxis = xyplot.getDomainAxis();
            ValueAxis valueaxis1 = xyplot.getRangeAxis();
            double d2 = valueaxis.valueToJava2D(d, rectangle2d, xyplot.getDomainAxisEdge());
            double d3 = valueaxis1.valueToJava2D(d1, rectangle2d, xyplot.getRangeAxisEdge());
            Point point = panel.translateJava2DToScreen(new java.awt.geom.Point2D.Double(d2, d3));
            System.out.println("Mouse coordinates are (" + i + ", " + j + "), in data space = (" + d + ", " + d1 + ").");
            System.out.println("--> (" + point.getX() + ", " + point.getY() + ")");
        }

        public void chartMouseMoved(ChartMouseEvent chartmouseevent)
        {
        }

        ChartPanel panel;

        public MyChartMouseListener(ChartPanel chartpanel)
        {
            panel = chartpanel;
        }
    }


    public ScatterPlotDemo3(String s)
    {
        super(s);
        JPanel jpanel = createDemoPanel();
        jpanel.setPreferredSize(new Dimension(500, 270));
        setContentPane(jpanel);
    }

    private static JFreeChart createChart(XYDataset xydataset)
    {
        JFreeChart jfreechart = ChartFactory.createScatterPlot("Scatter Plot Demo 3", "X", "Y", xydataset, PlotOrientation.VERTICAL, true, true, false);
        XYPlot xyplot = (XYPlot)jfreechart.getPlot();
        NumberAxis numberaxis = (NumberAxis)xyplot.getDomainAxis();
        numberaxis.setAutoRangeIncludesZero(false);
        return jfreechart;
    }

    public static JPanel createDemoPanel()
    {
        JFreeChart jfreechart = createChart(new SampleXYDataset2());
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        chartpanel.addChartMouseListener(new MyChartMouseListener(chartpanel));
        chartpanel.setDomainZoomable(true);
        chartpanel.setRangeZoomable(true);
        return chartpanel;
    }

    public static void main(String args[])
    {
        ScatterPlotDemo3 scatterplotdemo3 = new ScatterPlotDemo3("Scatter Plot Demo 3");
        scatterplotdemo3.pack();
        RefineryUtilities.centerFrameOnScreen(scatterplotdemo3);
        scatterplotdemo3.setVisible(true);
    }
}