JFreeChart Get Plot Example

Chapter: JFreeChart Last Updated: 07-07-2016 13:52:31 UTC

Program:

            /* ............... START ............... */
                
import java.awt.Color;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.Plot;
import org.jfree.data.general.DefaultPieDataset;

public class JavaJFreeChartPlotAttribute {
	
	public static void main(String[] args) {

		DefaultPieDataset dataset = new DefaultPieDataset();
		dataset.setValue("JAVA", 40.1);
		dataset.setValue("C#", 22);
		dataset.setValue("C++", 81);
		// Creation Of Chart.
		JFreeChart chart = ChartFactory.createPieChart("Programming Languages", dataset, true, // legend?
				true, // tooltips?
				false // URLs?
		);
		ChartFrame frame = new ChartFrame("JFreeChart", chart);
		Plot plot = chart.getPlot();
		/* You can use the below method also for getting Plot
			CategoryPlot plot = chart.getCategoryPlot();
			XYPlot plot = chart.getXYPlot();
		*/
		frame.pack();
		frame.setVisible(true);
	}
}

                /* ............... END ............... */
        

Notes:

  • The getPlot() method in the JFreeChart class returns a reference to the plot being used by the chart.
  • Methods will throw a ClassCastException if the plot is not an appropriate class.

Tags

JFreeChart Get Plot Class, Java

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