CPU.StackedBarChartExample1.java Source code

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Here is the source code for CPU.StackedBarChartExample1.java

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/*
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package CPU;

/**
 *
 * @author behnish
 */

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.SubCategoryAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.GroupedStackedBarRenderer;
import org.jfree.data.KeyToGroupMap;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * Stacked Bar Example, the data display on chart is dummy data not real data
 * @author putukus
 *
 */
public class StackedBarChartExample1 extends ApplicationFrame {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    /**
     * Constructor
     * @param titel
     */
    StackedBarChartExample1(String titel) {
        super(titel);

        final CategoryDataset dataset = createDataset();
        final JFreeChart sbchart = createChart(dataset);
        final ChartPanel pnl = new ChartPanel(sbchart);
        pnl.setPreferredSize(new java.awt.Dimension(450, 350));
        setContentPane(pnl);

    }

    /**
     * Create chart
     * @param dataset
     * @return
     */
    private JFreeChart createChart(final CategoryDataset dataset) {

        final JFreeChart stackedChart = ChartFactory.createStackedBarChart("Stacked Bar Chart", "Category", "Value",
                dataset, PlotOrientation.VERTICAL, true, true, false);

        //create group 
        GroupedStackedBarRenderer renderer = new GroupedStackedBarRenderer();
        KeyToGroupMap map = new KeyToGroupMap("G1");
        map.mapKeyToGroup("Toyota (US)", "G1");
        map.mapKeyToGroup("Toyota (Europe)", "G1");
        map.mapKeyToGroup("Toyota (Asia)", "G1");

        map.mapKeyToGroup("Ford (US)", "G2");
        map.mapKeyToGroup("Ford (Europe)", "G2");
        map.mapKeyToGroup("Ford (Asia)", "G2");

        map.mapKeyToGroup("BMW (US)", "G3");
        map.mapKeyToGroup("BMW (Europe)", "G3");
        map.mapKeyToGroup("BMW (Asia)", "G3");
        renderer.setSeriesToGroupMap(map);
        //margin between bar.
        renderer.setItemMargin(0.03);
        //end

        SubCategoryAxis dom_axis = new SubCategoryAxis("Car Production / Month");
        //Margin between group
        dom_axis.setCategoryMargin(0.06);
        //end

        dom_axis.addSubCategory("Toyota");
        dom_axis.addSubCategory("Ford");
        dom_axis.addSubCategory("BMW");

        CategoryPlot plot = (CategoryPlot) stackedChart.getPlot();
        plot.setDomainAxis(dom_axis);
        plot.setRenderer(renderer);

        return stackedChart;
    }

    public static void main(final String[] args) {
        final StackedBarChartExample1 example = new StackedBarChartExample1("Stacked Bar Chart");
        example.pack();
        RefineryUtilities.centerFrameOnScreen(example);
        example.setVisible(true);
    }

    /**
     * Create dataset for chart in application usually get data from database
     * with JDBC or collection
     * 
     * @return
     */
    private CategoryDataset createDataset() {
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();

        dataset.addValue(20.0, "Toyota (US)", "Jan 2011");
        dataset.addValue(20.0, "Toyota (US)", "Feb 2011");
        dataset.addValue(20.0, "Toyota (US)", "Mar 2011");

        dataset.addValue(30.0, "Toyota (Europe)", "Jan 2011");
        dataset.addValue(30.0, "Toyota (Europe)", "Feb 2011");
        dataset.addValue(30.0, "Toyota (Europe)", "Mar 2011");

        dataset.addValue(10.0, "Toyota (Asia)", "Jan 2011");
        dataset.addValue(10.0, "Toyota (Asia)", "Feb 2011");
        dataset.addValue(10.0, "Toyota (Asia)", "Mar 2011");

        dataset.addValue(24.7, "Ford (US)", "Jan 2011");
        dataset.addValue(18.4, "Ford (US)", "Feb 2011");
        dataset.addValue(23.5, "Ford (US)", "Mar 2011");

        dataset.addValue(16.6, "Ford (Europe)", "Jan 2011");
        dataset.addValue(14.8, "Ford (Europe)", "Feb 2011");
        dataset.addValue(17.4, "Ford (Europe)", "Mar 2011");

        dataset.addValue(16.5, "Ford (Asia)", "Jan 2011");
        dataset.addValue(22.8, "Ford (Asia)", "Feb 2011");
        dataset.addValue(12.3, "Ford (Asia)", "Mar 2011");

        dataset.addValue(14.7, "BMW (US)", "Jan 2011");
        dataset.addValue(35.5, "BMW (US)", "Feb 2011");
        dataset.addValue(23.4, "BMW (US)", "Mar 2011");

        dataset.addValue(16.5, "BMW (Europe)", "Jan 2011");
        dataset.addValue(17.3, "BMW (Europe)", "Feb 2011");
        dataset.addValue(26.6, "BMW (Europe)", "Mar 2011");

        dataset.addValue(24.5, "BMW (Asia)", "Jan 2011");
        dataset.addValue(18.4, "BMW (Asia)", "Feb 2011");
        dataset.addValue(11.8, "BMW (Asia)", "Mar 2011");

        return dataset;
    }

}