棒グラフ-IntervalXYDataset

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import java.awt.BorderLayout; import javax.swing.JPanel; import javax.swing.JSlider; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; 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.axis.ValueAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYBarRenderer; import org.jfree.data.xy.IntervalXYDataset; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities;   public class swingTestSlider extends ApplicationFrame {    private static class DemoPanel extends JPanel implements ChangeListener {     JSlider slider;   ValueAxis xAxis;   XYSeries series;       public DemoPanel() {    super(new BorderLayout());         IntervalXYDataset dataset = createDataset();    JFreeChart chart = createChart(dataset);         ChartPanel chartPanel = new ChartPanel(chart);    chartPanel.setPreferredSize(new java.awt.Dimension(600, 270));      add(chartPanel);      JPanel panel = new JPanel(new BorderLayout());         this.slider = new JSlider();    slider.setMaximum(series.getItemCount());    slider.setValue(series.getItemCount());         this.slider.addChangeListener(this);    panel.add(this.slider);    add(panel, BorderLayout.SOUTH);   }     private JFreeChart createChart(IntervalXYDataset dataset) {    final JFreeChart chart = ChartFactory.createXYBarChart(      "IntervalXYDataset", "X", false, "Y", dataset,      PlotOrientation.VERTICAL, true, true, false);         XYPlot plot = (XYPlot) chart.getPlot();      NumberAxis numberaxis = (NumberAxis) plot.getDomainAxis();    numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());         xAxis = plot.getDomainAxis();    xAxis.setAutoRange(false);    xAxis.setRange(80, 100);         plot.setRenderer(new XYBarRenderer());    XYBarRenderer renderer = (XYBarRenderer) chart.getXYPlot().getRenderer();    renderer.setMargin(0.1);;      return chart;   }   /*    * グラフデータを作る    */   private IntervalXYDataset createDataset() {         series = new XYSeries("XYSeriesデータ");         for ( int i = 1 ; i < 101 ; i++){     series.add(i, 100+i);    }      final XYSeriesCollection dataset = new XYSeriesCollection(series);    return dataset;   }//グラフデータを作るここまで     @Override   public void stateChanged(ChangeEvent event) {    xAxis.setRange(slider.getValue()-20, slider.getValue());    //System.out.println(slider.getValue());   }    }//class MakePanel ここまで    public swingTestSlider(String title) {   super(title);   setContentPane(new DemoPanel());  }    public static JPanel createDemoPanel() {   return new DemoPanel();  }    public static void main(String[] args) {   swingTestSlider demo = new swingTestSlider("XYBarChart");   demo.pack();   RefineryUtilities.centerFrameOnScreen(demo);   demo.setVisible(true);  }   }