CombinedDomainXYPlot不重新缩放域轴

当我从使用CombinedDomainXYPlot的图表中隐藏系列数时，所有范围轴都会很好地自动重新调整。 但是，域轴没有重新调整。 有没有办法手动刷新缩放，或者可能有一个我缺少的设置，以便在此设置中启用域轴的自动缩放？

Answer 1

CombinedDomainXYPlot在getDataRange()为其共享域轴建立组合的最大Range 。 这是允许共享轴所必需的。 更改系列的可见性对共享域轴没有影响; 更改Dataset通过其configure()方法更新共享域轴。 在任何一种情况下，子图的范围轴都可以独立更新。

下面的示例允许您更新子图或独立更改系列的可见性。 中断configure()以查看效果。 你想要切换setAutoRange ()建议可以替换为对configure()的一次调用; 但效果应为零，因为数据及其组合的最大Range不变。

 mainPlot.getDomainAxis().configure(); 

要自动更新共享域轴，请使用addSeries()或removeSeries()而不是setSeriesVisible() 。

顺便说一句，不要忽略Initial Threads和pack() 。

 import java.awt.*; import java.awt.event.ActionEvent; import java.util.Random; import javax.swing.*; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CombinedDomainXYPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.StandardXYItemRenderer; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; /** * @see http://stackoverflow.com/q/11870416/230513 */ public class CombinedPlot { private static final int MAX = 3; private static final Random rand = new Random(); public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { @Override public void run() { init(); } }); } private static void init() { XYItemRenderer renderer = new StandardXYItemRenderer(); XYPlot plot1 = new XYPlot( generateData(), null, new NumberAxis("Range 1"), renderer); XYPlot plot2 = new XYPlot( generateData(), null, new NumberAxis("Range 2"), renderer); final CombinedDomainXYPlot plot = new CombinedDomainXYPlot(new NumberAxis("Domain")); plot.add(plot1); plot.add(plot2); plot.setOrientation(PlotOrientation.VERTICAL); JFreeChart chart = new JFreeChart( "Combined Plots", JFreeChart.DEFAULT_TITLE_FONT, plot, true); ChartPanel chartPanel = new ChartPanel(chart); JPanel controlPanel = new JPanel(); controlPanel.add(new JButton(new UpdateAction(plot, 0))); controlPanel.add(new JButton(new UpdateAction(plot, 1))); for (int i = 0; i < MAX; i++) { JCheckBox jcb = new JCheckBox(new VisibleAction(renderer, i)); jcb.setSelected(true); renderer.setSeriesVisible(i, true); controlPanel.add(jcb); } JFrame frame = new JFrame("Combined Plot Example"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(chartPanel, BorderLayout.CENTER); frame.add(controlPanel, BorderLayout.SOUTH); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } private static class UpdateAction extends AbstractAction { private final XYPlot plot; public UpdateAction(CombinedDomainXYPlot plot, int i) { super("Update plot " + (i + 1)); this.plot = (XYPlot) plot.getSubplots().get(i); } @Override public void actionPerformed(ActionEvent e) { plot.setDataset(CombinedPlot.generateData()); } } private static class VisibleAction extends AbstractAction { private XYItemRenderer renderer; private int i; public VisibleAction(XYItemRenderer renderer, int i) { super("Series " + (i + 1)); this.renderer = renderer; this.i = i; } @Override public void actionPerformed(ActionEvent e) { renderer.setSeriesVisible(i, !renderer.getSeriesVisible(i)); } } private static XYSeriesCollection generateData() { XYSeriesCollection data = new XYSeriesCollection(); for (int i = 0; i < MAX; i++) { data.addSeries(generateSeries("Series " + (i + 1))); } return data; } private static XYSeries generateSeries(String key) { XYSeries series = new XYSeries(key); for (int i = 0; i < 16; i++) { series.add(rand.nextGaussian(), rand.nextGaussian()); } return series; } } 

Answer 2

回答我自己的问题：

我设法使用一点hack刷新轴：

  mainPlot.getDomainAxis().setAutoRange(false); mainPlot.getDomainAxis().setAutoRange(true); 

它并不好，但它可以解决问题。 不过，我希望有人可以发布一个更好的解决方案……

以下是使用非自定义数据集的代码。 请运行它，然后单击一个名为click的大按钮多次隐藏几个系列。 域轴未重新调整。

 import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.List; import java.util.Random; import javax.swing.*; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.event.ChartChangeEvent; import org.jfree.chart.event.ChartChangeListener; import org.jfree.chart.plot.CombinedDomainXYPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.StandardXYItemRenderer; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.RectangleEdge; public class Runner { private static Random rand = new Random(); public static void main(String[] args) { XYSeriesCollection data = new XYSeriesCollection(); int max = rand.nextInt(2) + 2; for (int i = 0; i < max; i++) { data.addSeries(generateSeries("Series" + (i + 1))); } final XYItemRenderer renderer1 = new StandardXYItemRenderer(); final XYPlot plot1 = new XYPlot(data, null, new DateAxis("Dates"), renderer1); data = new XYSeriesCollection(); for (int i = 0; i < max; i++) { data.addSeries(generateSeries("Series" + (i + 1))); } final XYPlot plot2 = new XYPlot(data, null, new NumberAxis("Numbers"), renderer1); final CombinedDomainXYPlot plot = new CombinedDomainXYPlot(new NumberAxis("Domain")); plot.setGap(10.0); // add the subplots... plot.add(plot1, 1); plot.add(plot2, 1); plot.setOrientation(PlotOrientation.VERTICAL); // return a new chart containing the overlaid plot... final JFreeChart chart = new JFreeChart("CombinedDomainXYPlot Demo", JFreeChart.DEFAULT_TITLE_FONT, plot, true); chart.getLegend().setPosition(RectangleEdge.RIGHT); chart.addChangeListener(new ChartChangeListener() { boolean changed = false; @Override public void chartChanged(ChartChangeEvent event) { if (!changed) { } else { changed = false; } } }); ChartPanel panel = new ChartPanel(chart); JPanel panel2 = new JPanel(new BorderLayout(0, 10)); panel2.add(panel, BorderLayout.CENTER); JButton b = new JButton("Click"); b.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { CombinedDomainXYPlot plot = (CombinedDomainXYPlot) chart.getXYPlot(); List l = plot.getSubplots(); int index = rand.nextInt(plot1.getSeriesCount() + plot2.getSeriesCount()); boolean b = renderer1.isSeriesVisible(index); renderer1.setSeriesVisible(index, false); } }); panel2.add(b, BorderLayout.NORTH); panel2.setVisible(true); JFrame frame = new JFrame("dsadsa"); frame.add(panel2); frame.setSize(800, 600); frame.setVisible(true); } private static XYSeries generateSeries(String key) { XYSeries series = new XYSeries(key); int points = 15; double val = 0.0; double x = 0.0; for (int i = 0; i < points; i++) { val += rand.nextDouble() * 6 - 3; x += rand.nextDouble() * 4; series.add(x, val); } return series; } }