JFreeChart: Time Series Demo 13: two charts that use weekly data
/* ===========================================================
* 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.]
*
* ---------------------
* TimeSeriesDemo13.java
* ---------------------
* (C) Copyright 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: TimeSeriesDemo13.java,v 1.4 2004/04/26 19:12:03 taqua Exp $
*
* Changes
* -------
* 11-Feb-2004 : Version 1 (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.BorderLayout;
import java.awt.Color;
import java.text.SimpleDateFormat;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
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.axis.DateTickUnit;
import org.jfree.chart.axis.TickUnits;
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.RegularTimePeriod;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.time.Week;
import org.jfree.data.xy.XYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.ui.Spacer;
/**
* This demo shows two charts that use weekly data. A custom tick unit collection is defined to
* control the domain axis formatting.
*
*/
public class TimeSeriesDemo13 extends ApplicationFrame {
/**
* Creates a new demo instance.
*
* @param title the frame title.
*/
public TimeSeriesDemo13(final String title) {
super(title);
final XYDataset dataset1 = createDataset(26);
final JFreeChart chart1 = createChart(dataset1);
final ChartPanel chartPanel1 = new ChartPanel(chart1);
final XYDataset dataset2 = createDataset(1);
final JFreeChart chart2 = createChart(dataset2);
final ChartPanel chartPanel2 = new ChartPanel(chart2);
final JTabbedPane tabs = new JTabbedPane();
tabs.add("Chart 1", chartPanel1);
tabs.add("Chart 2", chartPanel2);
final JPanel content = new JPanel(new BorderLayout());
content.setPreferredSize(new java.awt.Dimension(500, 270));
content.add(tabs);
setContentPane(content);
}
/**
* Creates a chart.
*
* @param dataset a dataset.
*
* @return A chart.
*/
private JFreeChart createChart(final XYDataset dataset) {
final JFreeChart chart = ChartFactory.createTimeSeriesChart(
"Weekly Data",
"Date",
"Value",
dataset,
true,
true,
false
);
chart.setBackgroundPaint(Color.white);
// final StandardLegend sl = (StandardLegend) chart.getLegend();
// sl.setDisplaySeriesShapes(true);
final XYPlot plot = chart.getXYPlot();
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
// plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
plot.setDomainCrosshairVisible(true);
plot.setRangeCrosshairVisible(true);
final XYItemRenderer renderer = plot.getRenderer();
if (renderer instanceof StandardXYItemRenderer) {
final StandardXYItemRenderer rr = (StandardXYItemRenderer) renderer;
rr.setPlotShapes(true);
rr.setShapesFilled(true);
}
final DateAxis axis = (DateAxis) plot.getDomainAxis();
final TickUnits standardUnits = new TickUnits();
standardUnits.add(
new DateTickUnit(DateTickUnit.DAY, 1, new SimpleDateFormat("MMM dd ''yy"))
);
standardUnits.add(
new DateTickUnit(DateTickUnit.DAY, 7, new SimpleDateFormat("MMM dd ''yy"))
);
standardUnits.add(
new DateTickUnit(DateTickUnit.MONTH, 1, new SimpleDateFormat("MMM ''yy"))
);
axis.setStandardTickUnits(standardUnits);
return chart;
}
// ****************************************************************************
// * 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 dataset containing random values at weekly intervals.
*
* @param items the number of items in the dataset.
*
* @return the dataset.
*/
private XYDataset createDataset(final int items) {
final TimeSeries s1 = new TimeSeries("Random Data", Week.class);
RegularTimePeriod t = new Week();
double v = 100.0;
for (int i = 0; i < items; i++) {
s1.add(t, v);
v = v * (1 + ((Math.random() - 0.499) / 100.0));
t = t.next();
}
final TimeSeriesCollection dataset = new TimeSeriesCollection(s1);
dataset.setDomainIsPointsInTime(true);
return dataset;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final TimeSeriesDemo13 demo = new TimeSeriesDemo13("Time Series Demo 13");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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