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(0xFF, 0xFF, 0xCC));
// 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(500, 270));
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);
}
}
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