JFreeChart: Event Frequency Demo : Time Series Chart « Chart « Java

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Java » Chart » Time Series ChartScreenshots 
JFreeChart: Event Frequency Demo
JFreeChart: Event Frequency Demo


/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * -----------------------
 * EventFrequencyDemo.java
 * -----------------------
 * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: EventFrequencyDemo.java,v 1.19 2004/05/10 16:45:23 mungady Exp $
 *
 * Changes (from 10-Oct-2002)
 * --------------------------
 * 10-Oct-2002 : Added standard header and Javadocs (DG);
 * 11-Feb-2003 : Fixed 0.9.5 bug (DG);
 *
 */

package org.jfree.chart.demo;

import java.awt.Color;
import java.text.DateFormat;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.labels.CategoryToolTipGenerator;
import org.jfree.chart.labels.StandardCategoryToolTipGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.time.Day;
import org.jfree.date.SerialDate;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A demo application showing how to display category data against a date axis.
 *
 */
public class EventFrequencyDemo extends ApplicationFrame {

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

        super(title);

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

        // initialise the data...
        final Day d1 = new Day(12, SerialDate.JUNE, 2002);
        final Day d2 = new Day(14, SerialDate.JUNE, 2002);
        final Day d3 = new Day(15, SerialDate.JUNE, 2002);
        final Day d4 = new Day(10, SerialDate.JULY, 2002);
        final Day d5 = new Day(20, SerialDate.JULY, 2002);
        final Day d6 = new Day(22, SerialDate.AUGUST, 2002);

        dataset.setValue(new Long(d1.getMiddleMillisecond())"Series 1""Requirement 1");
        dataset.setValue(new Long(d1.getMiddleMillisecond())"Series 1""Requirement 2");
        dataset.setValue(new Long(d2.getMiddleMillisecond())"Series 1""Requirement 3");
        dataset.setValue(new Long(d3.getMiddleMillisecond())"Series 2""Requirement 1");
        dataset.setValue(new Long(d4.getMiddleMillisecond())"Series 2""Requirement 3");
        dataset.setValue(new Long(d5.getMiddleMillisecond())"Series 3""Requirement 2");
        dataset.setValue(new Long(d6.getMiddleMillisecond())"Series 1""Requirement 4");

        // create the chart...
        final JFreeChart chart = ChartFactory.createBarChart(
            "Event Frequency Demo",      // title
            "Category",                  // domain axis label
            "Value",                     // range axis label
            dataset,                     // dataset
            PlotOrientation.HORIZONTAL,  // orientation
            true,                        // include legend
            true,                        // tooltips
            false                        // URLs
        );

        // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...

        // set the background color for the chart...
        chart.setBackgroundPaint(new Color(0xFF0xFF0xCC));

//        final StandardLegend legend = (StandardLegend) chart.getLegend();
  //      legend.setDisplaySeriesShapes(true);

        // get a reference to the plot for further customisation...
        final CategoryPlot plot = chart.getCategoryPlot();
    //    plot.getDomainAxis().setMaxCategoryLabelWidthRatio(10.0f);
        plot.setRangeAxis(new DateAxis("Date"));
        final CategoryToolTipGenerator toolTipGenerator = new StandardCategoryToolTipGenerator(
            "", DateFormat.getDateInstance()
        );
//        final CategoryItemRenderer renderer = new LineAndShapeRenderer(LineAndShapeRenderer.SHAPES);
  //      renderer.setToolTipGenerator(toolTipGenerator);
    //    plot.setRenderer(renderer);
                                                  
        // ****************************************************************************
        // * 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.             *
        // ****************************************************************************
        
        // OPTIONAL CUSTOMISATION COMPLETED.

        // add the chart to a panel...
        final ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500270));
        setContentPane(chartPanel);

    }

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

        final EventFrequencyDemo demo = new EventFrequencyDemo("Event Frequency Demo");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}

           
       
jfreechart-1.0.0-rc1.zip( 3,559 k)
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