java – JFreeChart的放大和缩小功能的异常行为？

我没有看到JFreechart的“放大”和“缩小”功能处于同步状态.

public class ChartPanelDemo {

    private static final String title = "Historical Data Graph";
    private ChartPanel chartPanel = createChart();
    private JButton ZoomX;
    private JButton ZoomY;
    private JButton Zoom;
    private JButton ZoomXOut;
    private JButton ZoomYOut;
    private JButton ZoomOut;
    private JButton originalGraph;
    private JButton xscaleInc;
    private JButton xscaleDec;
    private NumberAxis domainAxis;
    private NumberAxis rangeAxis;
    private int UNITS = 1;
    private static final int COUNT = 100;

    private JPanel panel;

    private double[][] sizeFr = { { TableLayout.FILL },{ TableLayout.FILL } };

    public ChartPanelDemo() {
        JFrame f = new JFrame(title);

        panel = new JPanel();
        f.setTitle(title);
        f.setDefaultCloSEOperation(JFrame.EXIT_ON_CLOSE);
        f.setLayout(new BorderLayout(0,5));
        f.add(chartPanel,BorderLayout.CENTER);
        chartPanel.setMouseWheelEnabled(true); 
        // chartPanel.setHorizontalAxisTrace(true);
        // chartPanel.setVerticalAxisTrace(true);
        chartPanel.setZoomInFactor(0.9);
        chartPanel.setZoomOutFactor(0.9);

        JPanel panel = new JPanel(new FlowLayout(FlowLayout.RIGHT));
        panel.add(createTrace());
        panel.add(createDate());
        panel.add(createZoom());
        panel.add(createZoomOutX());
        panel.add(createZoomOutY());
        panel.add(createZoomOut());
        panel.add(toOriginalGraph());
        panel.add(AutoScaleDecXaxis());
        //panel.add(AutoScaleDecXaxis());
        f.add(panel,BorderLayout.SOUTH);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }



    private JSpinner AutoScaleDecXaxis() {
        final JSpinner spinner = new JSpinner(
                new SpinnerNumberModel(UNITS,1,COUNT,1));
            spinner.addChangeListener(new ChangeListener() {

                @Override
                public void stateChanged(ChangeEvent e) {
                    JSpinner s = (JSpinner) e.getSource();
                    Number n = (Number) s.getValue();
                    domainAxis.setTickUnit(new NumberTickUnit(n.intValue()));
                }
            });
            return spinner;
    }

    private JButton toOriginalGraph() {
        originalGraph = new JButton(new AbstractAction("RestoreGraph") {

            @Override
            public void actionPerformed(ActionEvent e) {
                chartPanel.restoreAutoBounds();
            }

        });
        return originalGraph;
    }

    private JButton createZoomOut() {
        ZoomOut = new JButton(new AbstractAction("ZoomOut") {

            @Override
            public void actionPerformed(ActionEvent e) {
                ZoomOut.setActionCommand(chartPanel.ZOOM_OUT_BOTH_COMMAND);
                ZoomOut.addActionListener(chartPanel);

            }

        });
        return ZoomOut;
    }

    private JButton createZoomOutY() {
        ZoomYOut = new JButton(new AbstractAction("ZoomOutY") {

            @Override
            public void actionPerformed(ActionEvent e) {
                ZoomYOut.setActionCommand(chartPanel.ZOOM_OUT_RANGE_COMMAND);
                ZoomYOut.addActionListener(chartPanel);
            }

        });
        return ZoomYOut;
    }

    private JButton createZoomOutX() {
        ZoomXOut = new JButton(new AbstractAction("ZoomOutX") {
            @Override
            public void actionPerformed(ActionEvent e) {
                ZoomXOut.setActionCommand(chartPanel.ZOOM_OUT_DOMAIN_COMMAND);
                ZoomXOut.addActionListener(chartPanel);
            }
        });
        return ZoomXOut;
    }

    private JButton createTrace() {
        ZoomX = new JButton(new AbstractAction("ZoomInX") {

            @Override
            public void actionPerformed(ActionEvent e) {
                ZoomX.setActionCommand(chartPanel.ZOOM_IN_DOMAIN_COMMAND);
                ZoomX.addActionListener(chartPanel);
                // chartPanel.restoreAutoBounds();
            }
        });
        return ZoomX;
    }

    private JButton createDate() {
        ZoomY = new JButton(new AbstractAction("ZoomInY") {

            @Override
            public void actionPerformed(ActionEvent e) {
                ZoomY.setActionCommand(chartPanel.ZOOM_IN_RANGE_COMMAND);
                ZoomY.addActionListener(chartPanel);
            }
        });
        return ZoomY;
    }

    private JButton createZoom() {
        Zoom = new JButton(new AbstractAction("Zoom") {

            @Override
            public void actionPerformed(ActionEvent e) {
                Zoom.setActionCommand(chartPanel.ZOOM_IN_BOTH_COMMAND);
                Zoom.addActionListener(chartPanel);
            }
        });
        return Zoom;
    }

    private ChartPanel createChart() {
        XYDataset roiData = createDataset();
        JFreeChart chart = createChart(roiData);
        chart.setBackgroundPaint(new Color(0xBBBBDD));
        XYPlot plot = chart.getXYPlot();
        XYSplineRenderer r = new XYSplineRenderer(20);
        plot.setRenderer(r);
        r.setBaseShapesVisible(true);
        rangeAxis = (NumberAxis) plot.getRangeAxis();
        domainAxis = (NumberAxis) plot.getDomainAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
        domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

        return new ChartPanel(chart);
    }

    private JFreeChart createChart(XYDataset dataset) {
        JFreeChart chart = ChartFactory.createXYLineChart("Historical Data",// chart
                                                                                // title
                "X",// x axis label
                "Y",// y axis label
                dataset,// data
                PlotOrientation.VERTICAL,true,// include legend
                true,// tooltips
                false // urls
                );
        return chart;

    }

    private XYDataset createDataset() {
        XYSeries series1 = new XYSeries("First");
        series1.add(1.0,1.0);
        series1.add(2.0,4.0);
        series1.add(3.0,3.0);
        series1.add(4.0,5.0);
        series1.add(5.0,5.0);
        series1.add(6.0,7.0);
        series1.add(7.0,7.0);
        series1.add(8.0,8.0);
        XYSeries series2 = new XYSeries("Second");
        series2.add(1.0,5.0);
        series2.add(2.0,7.0);
        series2.add(3.0,6.0);
        series2.add(4.0,8.0);
        series2.add(5.0,4.0);
        series2.add(6.0,4.0);
        series2.add(7.0,2.0);
        series2.add(8.0,1.0);

        XYSeriesCollection dataset = new XYSeriesCollection();
        dataset.addSeries(series1);
        dataset.addSeries(series2);

        return dataset;
    }


    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                ChartPanelDemo cpd = new ChartPanelDemo();
            }
        });
    }
}

问题2：两次点击ZoomInX后

再次点击两次ZoomOutX(这是原始图表)

但是再次点击两次ZoomInX后,我看到图表不同,而不是这个问题中应该是第一个图像.