Combined Category Plot Example using JFreeChart
This Example shows you how to create a Combined Category Plot chart using
JFreeChart. Code for the chart shows runs of two team in a match.
In the code given below we have extended class ApplicationFrame to create a frame and also pass a string value to the constructor of
ApplicationFrame class by using super keyword that will be name of the created frame.
The method used in this example are described below:
pack(): This method invokes the layout manager.
centerFrameOnScreen(): This method is used for the position of the frame in the middle of the screen.
setVisible(): This method is used for display frame on the screen.
addValue(): This method is used for add data into DefaultCategoryDataset class object according to the category.
JFreeChart: JFreeChart class object is used to create new chart according CategoryPlot class
object
setBackgroundPaint(): This method is used to set the paint used to fill the chart background.
CombinedCategoryPlot.java
import java.awt.Font;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.labels.StandardCategoryToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.CombinedDomainCategoryPlot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
public class CombinedCategoryPlot extends ApplicationFrame {
public CombinedCategoryPlot(String titel) {
super(titel);
final JFreeChart chart = createChart();
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(
new java.awt.Dimension(600, 350));
setContentPane(chartPanel);
}
public CategoryDataset createDatasetTeam1() {
final DefaultCategoryDataset result =
new DefaultCategoryDataset();
double[] run =
new double[]{5, 4, 3, 6, 7, 8, 3, 6, 3, 6,};
for (int i = 0; i < run.length; i++) {
result.addValue(run[i], "Team 1", "" + (i + 1));
}
return result;
}
public CategoryDataset createDatasetTeam2() {
final DefaultCategoryDataset result
= new DefaultCategoryDataset();
double[] run = new double[]{3, 2, 2, 6, 8, 4, 1, 8, 9, 11};
for (int i = 0; i < run.length; i++) {
result.addValue(run[i], "Team 2", "" + (i + 1));
}
return result;
}
private JFreeChart createChart() {
final CategoryDataset dataset1 = createDatasetTeam1();
final NumberAxis rangeAxis1 =
new NumberAxis("Run");
rangeAxis1.setStandardTickUnits(
NumberAxis.createIntegerTickUnits());
final BarRenderer renderer1 = new BarRenderer();
renderer1.setBaseToolTipGenerator(
new StandardCategoryToolTipGenerator());
final CategoryPlot subplot1 =
new CategoryPlot(dataset1, null, rangeAxis1,
renderer1);
subplot1.setDomainGridlinesVisible(true);
final CategoryDataset dataset2 = createDatasetTeam2();
final NumberAxis rangeAxis2 =
new NumberAxis("Run");
rangeAxis2.setStandardTickUnits(
NumberAxis.createIntegerTickUnits());
final BarRenderer renderer2 =
new BarRenderer();
renderer2.setBaseToolTipGenerator(
new StandardCategoryToolTipGenerator());
final CategoryPlot subplot2 =
new CategoryPlot(dataset2, null, rangeAxis2,
renderer2);
subplot2.setDomainGridlinesVisible(true);
final CategoryAxis domainAxis = new CategoryAxis("Over");
final CombinedDomainCategoryPlot plot = new
CombinedDomainCategoryPlot(domainAxis);
plot.add(subplot1, 1);
plot.add(subplot2, 1);
final JFreeChart chart = new JFreeChart(
"Score Bord",
new Font("SansSerif", Font.BOLD, 12),
plot,
true);
return chart;
}
public static void main(final String[] args) {
final String title = "Combined Category Plot Demo";
final CombinedCategoryPlot demo
= new CombinedCategoryPlot(title);
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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Output:
Download
code
