JFreeChart: XY Step Chart 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.]
*
* --------------------
* XYStepChartDemo.java
* --------------------
* (C) Copyright 2002-2004, by Roger Studner and Contributors.
*
* Original Author: Roger Studner;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: XYStepChartDemo.java,v 1.13 2004/04/26 19:40:15 taqua Exp $
*
* Changes
* -------
* 13-May-2002 : Version 1, contributed by Roger Studner (DG);
* 11-Oct-2002 : Moved create method to ChartFactory class, and fixed issues reported by
* Checkstyle (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.BasicStroke;
import java.awt.Color;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartFrame;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.date.DateUtilities;
import org.jfree.ui.RefineryUtilities;
/**
* A demonstration of the {@link org.jfree.chart.renderer.XYStepRenderer} class.
*
* @author Roger Studner
*/
public class XYStepChartDemo {
/** A frame for displaying the chart. */
private ChartFrame frame = null;
/**
* Displays a sample chart in its own frame.
*/
private void displayChart() {
if (this.frame == null) {
// create a default chart based on some sample data...
final String title = "LCACs in use at given time";
final String xAxisLabel = "Time";
final String yAxisLabel = "Number of Transports";
final XYDataset data = createStepXYDataset();
final JFreeChart chart = ChartFactory.createXYStepChart(
title,
xAxisLabel, yAxisLabel,
data,
PlotOrientation.VERTICAL,
true, // legend
true, // tooltips
false // urls
);
// then customise it a little...
chart.setBackgroundPaint(new Color(216, 216, 216));
final XYPlot plot = chart.getXYPlot();
plot.getRenderer().setSeriesStroke(0, new BasicStroke(2.0f));
plot.getRenderer().setSeriesStroke(1, new BasicStroke(2.0f));
// and present it in a frame...
this.frame = new ChartFrame("Plan Comparison", chart);
this.frame.pack();
RefineryUtilities.positionFrameRandomly(this.frame);
this.frame.setVisible(true);
}
else {
this.frame.setVisible(true);
this.frame.requestFocus();
}
}
/**
* Creates and returns a sample dataset for the XY 'Step' chart.
*
* @return the sample dataset.
*/
public static XYDataset createStepXYDataset() {
final int feb = 2;
final XYSeries s1 = new XYSeries("Plan 1", false, true);
s1.add(DateUtilities.createDate(2002, feb, 19, 8, 0).getTime(), 0);
s1.add(DateUtilities.createDate(2002, feb, 19, 8, 1).getTime(), 2);
s1.add(DateUtilities.createDate(2002, feb, 19, 9, 5).getTime(), 4);
s1.add(DateUtilities.createDate(2002, feb, 19, 10, 6).getTime(), 4);
s1.add(DateUtilities.createDate(2002, feb, 19, 11, 6).getTime(), 5);
s1.add(DateUtilities.createDate(2002, feb, 19, 12, 6).getTime(), 3);
s1.add(DateUtilities.createDate(2002, feb, 19, 13, 6).getTime(), 6);
s1.add(DateUtilities.createDate(2002, feb, 19, 14, 6).getTime(), 6);
s1.add(DateUtilities.createDate(2002, feb, 19, 15, 30).getTime(), 2);
s1.add(DateUtilities.createDate(2002, feb, 19, 16, 7).getTime(), 0);
final XYSeries s2 = new XYSeries("Plan 2");
s2.add(DateUtilities.createDate(2002, feb, 19, 8, 40).getTime(), 0);
s2.add(DateUtilities.createDate(2002, feb, 19, 8, 45).getTime(), 1);
s2.add(DateUtilities.createDate(2002, feb, 19, 9, 0).getTime(), 6);
s2.add(DateUtilities.createDate(2002, feb, 19, 10, 6).getTime(), 2);
s2.add(DateUtilities.createDate(2002, feb, 19, 10, 45).getTime(), 4);
s2.add(DateUtilities.createDate(2002, feb, 19, 12, 0).getTime(), 7);
s2.add(DateUtilities.createDate(2002, feb, 19, 13, 0).getTime(), 5);
s2.add(DateUtilities.createDate(2002, feb, 19, 14, 6).getTime(), 4);
s2.add(DateUtilities.createDate(2002, feb, 19, 15, 15).getTime(), 4);
s2.add(DateUtilities.createDate(2002, feb, 19, 16, 0).getTime(), 0);
final XYSeriesCollection dataset = new XYSeriesCollection();
dataset.addSeries(s1);
dataset.addSeries(s2);
return dataset;
}
// ****************************************************************************
// * 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. *
// ****************************************************************************
/**
* The starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final XYStepChartDemo demo = new XYStepChartDemo();
demo.displayChart();
}
}
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