JFreeChart: DualAxisChart

Witam mam kod w javie tworzacy wyres Dual Axis, potrzebuje dodać mozliwosc wczytywania danych z pliku oraz przycisk odswiezania wynikow po wczytaniu danych:

package org.jfree.chart.demo;

import java.awt.Color;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.labels.StandardCategoryToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.DatasetRenderingOrder;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**

• A simple demonstration application showing how to create a dual axis chart based on data
• from two {@Link CategoryDataset} instances.

*/
public class DualAxisDemo extends ApplicationFrame {

/**
 * Creates a new demo instance.
 *
 * @param title  the frame title.
 */
public DualAxisDemo(final String title) {

    super(title);

    final CategoryDataset dataset1 = createDataset1();

    // create the chart...
    final JFreeChart chart = ChartFactory.createBarChart(
        "Dual Axis Chart",        // chart title
        "Category",               // domain axis label
        "Value",                  // range axis label
        dataset1,                 // data
        PlotOrientation.VERTICAL,
        true,                     // include legend
        true,                     // tooltips?
        false                     // URL generator?  Not required...
    );

    // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
    chart.setBackgroundPaint(Color.white);

// chart.getLegend().setAnchor(Legend.SOUTH);

    // get a reference to the plot for further customisation...
    final CategoryPlot plot = chart.getCategoryPlot();
    plot.setBackgroundPaint(new Color(0xEE, 0xEE, 0xFF));
    plot.setDomainAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);

    final CategoryDataset dataset2 = createDataset2();
    plot.setDataset(1, dataset2);
    plot.mapDatasetToRangeAxis(1, 1);

    final CategoryAxis domainAxis = plot.getDomainAxis();
    domainAxis.setCategoryLabelPositions(CategoryLabelPositions.DOWN_45);
    final ValueAxis axis2 = new NumberAxis("Secondary");
    plot.setRangeAxis(1, axis2);

    final LineAndShapeRenderer renderer2 = new LineAndShapeRenderer();
    renderer2.setToolTipGenerator(new StandardCategoryToolTipGenerator());
    plot.setRenderer(1, renderer2);
    plot.setDatasetRenderingOrder(DatasetRenderingOrder.REVERSE);
    // OPTIONAL CUSTOMISATION COMPLETED.

    // add the chart to a panel...
    final ChartPanel chartPanel = new ChartPanel(chart);
    chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
    setContentPane(chartPanel);

}

// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE                                               *
// * The JFreeChart Developer Guide, written by David Gilbert, is available   *
// * to purchase from Object Refinery Limited:                                *
// *                                                                          *
* * http:*www.object-refinery.com/jfreechart/guide.html                     *
// *                                                                          *
// * Sales are used to provide funding for the JFreeChart project - please    * 
// * support us so that we can continue developing free software.             *
// ****************************************************************************

/**
 * Creates a sample dataset.
 *
 * @return  The dataset.
 */
private CategoryDataset createDataset1() {

    // row keys...
    final String series1 = "First";
    final String series2 = "Second";
    final String series3 = "Third";

    // column keys...
    final String category1 = "Category 1";
    final String category2 = "Category 2";
    final String category3 = "Category 3";
    final String category4 = "Category 4";
    final String category5 = "Category 5";
    final String category6 = "Category 6";
    final String category7 = "Category 7";
    final String category8 = "Category 8";

    // create the dataset...
    final DefaultCategoryDataset dataset = new DefaultCategoryDataset();

    dataset.addValue(1.0, series1, category1);
    dataset.addValue(4.0, series1, category2);
    dataset.addValue(3.0, series1, category3);
    dataset.addValue(5.0, series1, category4);
    dataset.addValue(5.0, series1, category5);
    dataset.addValue(7.0, series1, category6);
    dataset.addValue(7.0, series1, category7);
    dataset.addValue(8.0, series1, category8);

    dataset.addValue(5.0, series2, category1);
    dataset.addValue(7.0, series2, category2);
    dataset.addValue(6.0, series2, category3);
    dataset.addValue(8.0, series2, category4);
    dataset.addValue(4.0, series2, category5);
    dataset.addValue(4.0, series2, category6);
    dataset.addValue(2.0, series2, category7);
    dataset.addValue(1.0, series2, category8);

    dataset.addValue(4.0, series3, category1);
    dataset.addValue(3.0, series3, category2);
    dataset.addValue(2.0, series3, category3);
    dataset.addValue(3.0, series3, category4);
    dataset.addValue(6.0, series3, category5);
    dataset.addValue(3.0, series3, category6);
    dataset.addValue(4.0, series3, category7);
    dataset.addValue(3.0, series3, category8);

    return dataset;

}

/**
 * Creates a sample dataset.
 *
 * @return  The dataset.
 */
private CategoryDataset createDataset2() {

    // row keys...
    final String series1 = "Fourth";

    // column keys...
    final String category1 = "Category 1";
    final String category2 = "Category 2";
    final String category3 = "Category 3";
    final String category4 = "Category 4";
    final String category5 = "Category 5";
    final String category6 = "Category 6";
    final String category7 = "Category 7";
    final String category8 = "Category 8";

    // create the dataset...
    final DefaultCategoryDataset dataset = new DefaultCategoryDataset();

    dataset.addValue(15.0, series1, category1);
    dataset.addValue(24.0, series1, category2);
    dataset.addValue(31.0, series1, category3);
    dataset.addValue(25.0, series1, category4);
    dataset.addValue(56.0, series1, category5);
    dataset.addValue(37.0, series1, category6);
    dataset.addValue(77.0, series1, category7);
    dataset.addValue(18.0, series1, category8);

    return dataset;

}

/**
 * Starting point for the demonstration application.
 *
 * @param args  ignored.
 */
public static void main(final String[] args) {

    final DualAxisDemo demo = new DualAxisDemo("Dual Axis Demo");
    demo.pack();
    RefineryUtilities.centerFrameOnScreen(demo);
    demo.setVisible(true);

}

}