line chart help

[puneety]

Hi

I have drawn a line chart,& I want to show their value along the line(dots) also. I have attached the graph.

Plz help me to achieve this.

[mtrbojevic]

Here's how it can be done:

 

You should use a customizer class that looks something like this:

/**
 *
 */
package name_of_your_package;

import java.text.DecimalFormat;

import org.jfree.chart.JFreeChart;

import net.sf.jasperreports.engine.JRChart;
import net.sf.jasperreports.engine.JRChartCustomizer;

import org.jfree.chart.plot.CategoryPlot;

import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;

import org.jfree.chart.renderer.category.LineAndShapeRenderer;

public class LineChartCustomizer implements JRChartCustomizer {

    public void customize(JFreeChart jFreeChart, JRChart jrChart)

    {

        CategoryPlot plot = jFreeChart.getCategoryPlot();
       
        DecimalFormat dfKey = new DecimalFormat("###,###");

        StandardCategoryItemLabelGenerator labelGenerator

                = new StandardCategoryItemLabelGenerator("{2}", dfKey);
/* {0} - label would be equal to Series expression, {1} - label would be equal to Category expression, {2} - label would be equal to Value expression
*/
       
        LineAndShapeRenderer renderer = new LineAndShapeRenderer();
       
        renderer.setBaseItemLabelsVisible(true);
       
        renderer.setBaseItemLabelGenerator(labelGenerator);
       
        plot.setRenderer(renderer);

    }

}

 

and write the name of the class in "Customizer class" field of your line chart.