A demo showing the construction of HTML image maps for a time series chart
/* ===========================================================
* 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.]
*
* ------------------
* ImageMapDemo3.java
* ------------------
* (C) Copyright 2002-2004, by Richard Atkinson and Contributors.
*
* Original Author: Richard Atkinson (richard_c_atkinson@ntlworld.com);
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: ImageMapDemo3.java,v 1.16 2004/04/26 19:11:55 taqua Exp $
*
* Changes
* -------
* 18-Jul-2002 : Version 1 (RA);
* 10-Oct-2002 : Fixed errors reported by Checkstyle (DG);
*
*/
package org.jfree.chart.demo;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import org.jfree.chart.ChartRenderingInfo;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.entity.StandardEntityCollection;
import org.jfree.chart.labels.CustomXYToolTipGenerator;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.urls.StandardXYURLGenerator;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
/**
* A demo showing the construction of HTML image maps for a time series chart.
*
* @author Richard Atkinson
*/
public class ImageMapDemo3 {
/**
* Default constructor.
*/
public ImageMapDemo3() {
super();
}
/**
* Starting point for the demo.
*
* @param args ignored.
*
* @throws ParseException if there is a problem parsing dates.
*/
public static void main(final String[] args) throws ParseException {
// Create a sample dataset
final SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy");
final XYSeries dataSeries = new XYSeries("Curve data");
final ArrayList toolTips = new ArrayList();
dataSeries.add(sdf.parse("01-Jul-2002").getTime(), 5.22);
toolTips.add("1D - 5.22");
dataSeries.add(sdf.parse("02-Jul-2002").getTime(), 5.18);
toolTips.add("2D - 5.18");
dataSeries.add(sdf.parse("03-Jul-2002").getTime(), 5.23);
toolTips.add("3D - 5.23");
dataSeries.add(sdf.parse("04-Jul-2002").getTime(), 5.15);
toolTips.add("4D - 5.15");
dataSeries.add(sdf.parse("05-Jul-2002").getTime(), 5.22);
toolTips.add("5D - 5.22");
dataSeries.add(sdf.parse("06-Jul-2002").getTime(), 5.25);
toolTips.add("6D - 5.25");
dataSeries.add(sdf.parse("07-Jul-2002").getTime(), 5.31);
toolTips.add("7D - 5.31");
dataSeries.add(sdf.parse("08-Jul-2002").getTime(), 5.36);
toolTips.add("8D - 5.36");
final XYSeriesCollection xyDataset = new XYSeriesCollection(dataSeries);
final CustomXYToolTipGenerator ttg = new CustomXYToolTipGenerator();
ttg.addToolTipSeries(toolTips);
// Create the chart
final StandardXYURLGenerator urlg = new StandardXYURLGenerator("xy_details.jsp");
final ValueAxis timeAxis = new DateAxis("");
final NumberAxis valueAxis = new NumberAxis("");
valueAxis.setAutoRangeIncludesZero(false); // override default
final XYPlot plot = new XYPlot(xyDataset, timeAxis, valueAxis, null);
final StandardXYItemRenderer sxyir = new StandardXYItemRenderer(
StandardXYItemRenderer.LINES + StandardXYItemRenderer.SHAPES,
ttg, urlg);
sxyir.setShapesFilled(true);
plot.setRenderer(sxyir);
final JFreeChart chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot, false);
chart.setBackgroundPaint(java.awt.Color.white);
// ****************************************************************************
// * 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. *
// ****************************************************************************
// save it to an image
try {
final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
final File file1 = new File("xychart100.png");
ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, info);
// write an HTML page incorporating the image with an image map
final File file2 = new File("xychart100.html");
final OutputStream out = new BufferedOutputStream(new FileOutputStream(file2));
final PrintWriter writer = new PrintWriter(out);
writer.println("<HTML>");
writer.println("<HEAD><TITLE>JFreeChart Image Map Demo</TITLE></HEAD>");
writer.println("<BODY>");
// ChartUtilities.writeImageMap(writer, "chart", info);
writer.println("<IMG SRC=\"xychart100.png\" "
+ "WIDTH=\"600\" HEIGHT=\"400\" BORDER=\"0\" USEMAP=\"#chart\">");
writer.println("</BODY>");
writer.println("</HTML>");
writer.close();
}
catch (IOException e) {
System.out.println(e.toString());
}
return;
}
}
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