JFreeChart: Time Series Demo 4 using hourly data and including a null value
/* ===========================================================
* 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.]
*
* --------------------
* TimeSeriesDemo4.java
* --------------------
* (C) Copyright 2002-2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: TimeSeriesDemo4.java,v 1.13 2004/04/30 07:43:20 mungady Exp $
*
* Changes
* -------
* 08-Apr-2002 : Version 1 (DG);
* 25-Jun-2002 : Removed unnecessary import (DG);
* 28-Aug-2002 : Centered frame on screen (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.Color;
import java.awt.Insets;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.Marker;
import org.jfree.chart.plot.ValueMarker;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.data.time.Day;
import org.jfree.data.time.Hour;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* An example of a time series chart using hourly data and including a null value. The plot
* has an image set for the background, and a blue range marker is added to the plot.
*
*/
public class TimeSeriesDemo4 extends ApplicationFrame {
/**
* A demonstration application showing a quarterly time series containing a null value.
*
* @param title the frame title.
*/
public TimeSeriesDemo4(final String title) {
super(title);
final TimeSeries series = new TimeSeries("Random Data", Hour.class);
final Day today = new Day();
series.add(new Hour(1, today), 500.2);
series.add(new Hour(2, today), 694.1);
series.add(new Hour(3, today), 734.4);
series.add(new Hour(4, today), 453.2);
series.add(new Hour(7, today), 500.2);
series.add(new Hour(8, today), null);
series.add(new Hour(12, today), 734.4);
series.add(new Hour(16, today), 453.2);
final TimeSeriesCollection dataset = new TimeSeriesCollection(series);
// create a title with Unicode characters (currency symbols in this case)...
final String chartTitle = "\u20A2\u20A2\u20A3\u20A4\u20A5\u20A6\u20A7\u20A8\u20A9\u20AA";
final JFreeChart chart = ChartFactory.createTimeSeriesChart(
chartTitle,
"Time",
"Value",
dataset,
true,
true,
false
);
final XYPlot plot = chart.getXYPlot();
// plot.setInsets(new Insets(0, 0, 0, 20));
final Marker marker = new ValueMarker(700.0);
marker.setPaint(Color.blue);
marker.setAlpha(0.8f);
plot.addRangeMarker(marker);
plot.setBackgroundPaint(null);
plot.setBackgroundImage(JFreeChart.INFO.getLogo());
final XYItemRenderer renderer = plot.getRenderer();
if (renderer instanceof StandardXYItemRenderer) {
final StandardXYItemRenderer r = (StandardXYItemRenderer) renderer;
r.setPlotShapes(true);
r.setShapesFilled(true);
}
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
chartPanel.setMouseZoomable(true, false);
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. *
// ****************************************************************************
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final TimeSeriesDemo4 demo = new TimeSeriesDemo4("Time Series Demo 4");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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