在现有饼图下添加折线图 [英] Add a line chart beneath an existing pie chart

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问题描述

当我点击我的饼图的一部分时，我想在第一张图表下看到另一张图表（折线图）。现在我生成了另一个面板图，但是我丢失了第一个面板，因为第二个图表在第一个面板上绘制，第二个绘制第一个图表，但第二个图表具有不良尺寸;看图像。



我如何调整我的问题？

  JFreeChart chart = ChartFactory.createPieChart（Pratiche complessive，
数据集，true，true，false）; 
 ChartPanel chartPanel = new ChartPanel（图表）; 
 chartPanel.setPreferredSize（new java.awt.Dimension（560,370））; 
 PiePlot plot =（PiePlot）chart.getPlot（）; 
 
 PieSectionLabelGenerator gen = new StandardPieSectionLabelGenerator（
{1} pratica / che）; 
 plot.setLabelFont（new Font（Courier New，Font.BOLD，10））; 
 plot.setLabelLinkPaint（Color.BLACK）; 
 plot.setLabelLinkStroke（new BasicStroke（1.0f））; 
 plot.setLabelOutlineStroke（null）; 
 plot.setLabelPaint（Color.BLUE）; 
 plot.setLabelBackgroundPaint（null）; 
 plot.setLabelGenerator（gen）; 
 chart.setBackgroundPaint（Color.orange）; 
 chartPanel.addChartMouseListener（this）; 
 this.setContentPane（chartPanel）; 
} 
 
 public void chartMouseClicked（ChartMouseEvent event）{
 
 ChartEntity entity = event.getEntity（）; 
 String sezione =; 
 sezione = entity.toString（）。substring（17）; 
 sezione = sezione.replace（），）; 
 System.out.println（sezione）; 
 // PieSection：0,0（ARCHIVIATO）===> ARCHIVIATO V 
 if（entity！= null）{
 
 try {
 String query =查询; 
 
 String numero_pratiche =; 
 String nome_stato =; 
 String data_modifica; 
 
 stmt = conn.prepareStatement（query）; 
 rs = stmt.executeQuery（）; 
 DefaultCategoryDataset dataset = new DefaultCategoryDataset（）; 
 while（rs.next（））{
 dataset 
} 
 // System.out.println（entity.toString（））; 
 
 JFreeChart lineChart = ChartFactory.createLineChart（Pratiche，Data，Pratiche，dataset，PlotOrientation.VERTICAL，true，true，false）; 
 ChartPanel pannello_dettaglio = new ChartPanel（lineChart）; 
 pannello_dettaglio.setPreferredSize（new java.awt.Dimension（560,367））; 
 this.setContentPane（pannello_dettaglio）; 
 JfreeChart dettaglio = new JfreeChart（Dettaglio）; 
 pannello_dettaglio.setSize（560,367）; 
 RefineryUtilities.centerFrameOnScreen（dettaglio）; 
 dettaglio.setVisible（true）; 
 
} catch（例外e）{
 e.printStackTrace（）; 
} 
} 
} 
 
 //第一个面板（饼图）
 public static void main（String [] args）抛出ClassNotFoundException，
 SQLException {
 JfreeChart demo = new JfreeChart（Pratiche complessive）; 
 demo.setSize（560,367）; 
 RefineryUtilities.centerFrameOnScreen（demo）; 
 demo.setVisible（true）; 
 
}

这是我的第一个图表饼：
< a href =https://i.stack.imgur.com/tUs7i.png =nofollow noreferrer>



这是我的最终结果：

  import java.awt.Dimension; 
 import java.awt.EventQueue; 
 import java.awt.GridLayout; 
 import javax.swing.JFrame; 
 import org.jfree.chart.ChartFactory; 
 import org.jfree.chart.ChartMouseEvent; 
 import org.jfree.chart.ChartMouseListener; 
 import org.jfree.chart.ChartPanel; 
 import org.jfree.chart.JFreeChart; 
 import org.jfree.chart.entity.PieSectionEntity; 
 import org.jfree.data.category.DefaultCategoryDataset; 
 import org.jfree.data.general.DefaultPieDataset; 
 
 / ** @see http://stackoverflow.com/a/36889641/230513 * / 
 public class PieLineTest {
 
 private final DefaultCategoryDataset lineData = new DefaultCategoryDataset（）; 
 
 public void display（）{
 final DefaultPieDataset pieData = new DefaultPieDataset（）; 
 pieData.setValue（One，42）; 
 pieData.setValue（Two，84）; 
 JFreeChart pieChart = ChartFactory.createPieChart（
Title，pieData，true，true，false）; 
 JFreeChart lineChart = ChartFactory.createLineChart（
Title，Domain，Range，lineData）; 
 
 JFrame f = new JFrame（Test）; 
 f.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）; 
 f.setLayout（new GridLayout（0,1））; 
 ChartPanel piePanel = new ChartPanel（pieChart）{
 @Override 
 public Dimension getPreferredSize（）{
 return new Dimension（320,240）; 
} 
}; 
 piePanel.addChartMouseListener（new ChartMouseListener（）{
 @Override 
 public void chartMouseClicked（ChartMouseEvent cme）{
 PieSectionEntity e =（PieSectionEntity）cme.getEntity（）; 
 DefaultPieDataset d =（DefaultPieDataset）e.getDataset（）; 
 Comparable sectionKey = e.getSectionKey（）; 
 lineData.clear（）; 
 lineData.addValue（1，e.toString（ ），Begin）; 
 lineData.addValue（d.getValue（sectionKey），e.toString（），End）; 
} 
 
 @Override 
 public void chartMouseMoved（ChartMouseEvent event）{
} 
}）; 
 f.add（piePanel）; 
 f.add（new ChartPanel（lineChart））; 
 f.pack（）; 
 f.setLocationRelativeTo（null）; 
 f.setVisible（true）; 
} 
 
 public static void main（String args []）{
 EventQueue.invokeLater（new Runnable（）{
 public void run（）{
 new PieLineTest（）。display（）; 
} 
}）; 
} 
 
}


When I click on a section of my piechart, I would like to see under first chart another chart (line chart). Now I generated another panel chart, but I lost first panel, because the second chart paint on first panel and second paint a first chart, but second has bad dimension; see image.

How i can adjust my problem?

JFreeChart chart = ChartFactory.createPieChart("Pratiche complessive",
            dataset, true, true, false);
    ChartPanel chartPanel = new ChartPanel(chart);
    chartPanel.setPreferredSize(new java.awt.Dimension(560, 370));
    PiePlot plot = (PiePlot) chart.getPlot();

    PieSectionLabelGenerator gen = new StandardPieSectionLabelGenerator(
            "{1} pratica/che");
    plot.setLabelFont(new Font("Courier New", Font.BOLD, 10));
    plot.setLabelLinkPaint(Color.BLACK);
    plot.setLabelLinkStroke(new BasicStroke(1.0f));
    plot.setLabelOutlineStroke(null);
    plot.setLabelPaint(Color.BLUE);
    plot.setLabelBackgroundPaint(null);
    plot.setLabelGenerator(gen);
    chart.setBackgroundPaint(Color.orange);
    chartPanel.addChartMouseListener(this);
    this.setContentPane(chartPanel);
}

public void chartMouseClicked(ChartMouseEvent event) {

    ChartEntity entity = event.getEntity();
    String sezione = "";
    sezione = entity.toString().substring(17);
    sezione = sezione.replace(")", "");
    System.out.println(sezione);
    // PieSection: 0, 0(ARCHIVIATO)===>ARCHIVIATO V
    if (entity != null) {

        try {
            String query = query;

            String numero_pratiche = "";
            String nome_stato = "";
            String data_modifica;

            stmt = conn.prepareStatement(query);
            rs = stmt.executeQuery();
            DefaultCategoryDataset dataset = new DefaultCategoryDataset();
            while (rs.next()) {
                dataset
            }
            // System.out.println(entity.toString());

            JFreeChart lineChart = ChartFactory.createLineChart("Pratiche", "Data", "Pratiche", dataset, PlotOrientation.VERTICAL,true, true, false);
            ChartPanel pannello_dettaglio = new ChartPanel(lineChart);
            pannello_dettaglio.setPreferredSize(new java.awt.Dimension(560,367));
            this.setContentPane(pannello_dettaglio);
             JfreeChart dettaglio = new JfreeChart("Dettaglio");
            pannello_dettaglio.setSize(560, 367);
            RefineryUtilities.centerFrameOnScreen(dettaglio);
            dettaglio.setVisible(true);

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

//first panel(piechart)
    public static void main(String[] args) throws ClassNotFoundException,
            SQLException {
        JfreeChart demo = new JfreeChart("Pratiche complessive");
        demo.setSize(560, 367);
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

this is my first chart pie:

This is my final result:

解决方案

I would like to see one panel chart top-to-bottom.

It looks like you're replacing the entire pie chart panel with the line chart panel. Instead, add both chart panels and update the line chart's dataset in the ChartMouseListener. The listening line chart will update itself in response. In the example below, the listener updates the line chart's dataset to reflect which pie section was clicked.

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridLayout;
import javax.swing.JFrame;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartMouseEvent;
import org.jfree.chart.ChartMouseListener;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.entity.PieSectionEntity;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.general.DefaultPieDataset;

/** @see http://stackoverflow.com/a/36889641/230513 */
public class PieLineTest {

    private final DefaultCategoryDataset lineData = new DefaultCategoryDataset();

    public void display() {
        final DefaultPieDataset pieData = new DefaultPieDataset();
        pieData.setValue("One", 42);
        pieData.setValue("Two", 84);
        JFreeChart pieChart = ChartFactory.createPieChart(
            "Title", pieData, true, true, false);
        JFreeChart lineChart = ChartFactory.createLineChart(
            "Title", "Domain", "Range", lineData);

        JFrame f = new JFrame("Test");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setLayout(new GridLayout(0, 1));
        ChartPanel piePanel = new ChartPanel(pieChart) {
            @Override
            public Dimension getPreferredSize() {
                return new Dimension(320, 240);
            }
        };
        piePanel.addChartMouseListener(new ChartMouseListener() {
            @Override
            public void chartMouseClicked(ChartMouseEvent cme) {
                PieSectionEntity e = (PieSectionEntity) cme.getEntity();
                DefaultPieDataset d = (DefaultPieDataset) e.getDataset();
                Comparable sectionKey = e.getSectionKey();
                lineData.clear();
                lineData.addValue(1, e.toString(), "Begin");
                lineData.addValue(d.getValue(sectionKey), e.toString(), "End");
            }

            @Override
            public void chartMouseMoved(ChartMouseEvent event) {
            }
        });
        f.add(piePanel);
        f.add(new ChartPanel(lineChart));
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }

    public static void main(String args[]) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                new PieLineTest().display();
            }
        });
    }

}

这篇关于在现有饼图下添加折线图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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