[英]Add a line chart beneath an existing pie chart
When I click on a section of my piechart, I would like to see under first chart another chart (line chart).当我点击饼图的一部分时,我想在第一个图表下看到另一个图表(折线图)。 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;
现在我生成了另一个面板图表,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,第二个图表绘制了第一个图表,但第二个的尺寸不正确; see image.
看图片。
How i can adjust my problem?我该如何调整我的问题?
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);
}
I would like to see one panel chart top-to-bottom.
我想从上到下看到一个面板图表。
It looks like you're replacing the entire pie chart panel with the line chart panel.看起来您正在用折线图面板替换整个饼图面板。 Instead, add both chart panels and update the line chart's dataset in the
ChartMouseListener
.相反,添加两个图表面板并在
ChartMouseListener
更新折线图的数据集。 The listening line chart will update itself in response.收听折线图将自行更新以作为响应。 In the example below, the listener updates the line chart's dataset to reflect which pie section was clicked.
在下面的示例中,侦听器更新折线图的数据集以反映单击了哪个饼图部分。 For reference, it also displays the corresponding
ChartEntity
.作为参考,它还显示了相应的
ChartEntity
。
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.ChartEntity;
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 {
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);
DefaultCategoryDataset lineData = new DefaultCategoryDataset();
JFreeChart lineChart = ChartFactory.createLineChart(
"Title", "Domain", "Range", lineData);
ChartPanel piePanel = new ChartPanel(pieChart) {
@Override
public Dimension getPreferredSize() {
return new Dimension(400, 300);
}
};
piePanel.addChartMouseListener(new ChartMouseListener() {
@Override
public void chartMouseClicked(ChartMouseEvent cme) {
updateLineData(cme);
}
@Override
public void chartMouseMoved(ChartMouseEvent cme) {
updateLineData(cme);
}
private void updateLineData(ChartMouseEvent cme) {
ChartEntity ce = cme.getEntity();
lineChart.setTitle(ce.getClass().getSimpleName());
lineData.clear();
if (ce instanceof PieSectionEntity) {
PieSectionEntity e = (PieSectionEntity) ce;
DefaultPieDataset d = (DefaultPieDataset) e.getDataset();
Comparable sectionKey = e.getSectionKey();
lineData.addValue(1, e.toString(), "Begin");
lineData.addValue(d.getValue(sectionKey), e.toString(), "End");
}
}
});
JFrame f = new JFrame("Test");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setLayout(new GridLayout(0, 1));
f.add(piePanel);
f.add(new ChartPanel(lineChart) {
@Override
public Dimension getPreferredSize() {
return new Dimension(320, 240);
}
});
f.pack();
f.setLocationRelativeTo(null);
f.setVisible(true);
}
public static void main(String args[]) {
EventQueue.invokeLater(new PieLineTest()::display);
}
}
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