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jfreechart example source code file (

This example jfreechart source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - jfreechart tags/keywords

awt, geometry, plotrenderinginfo, rectangle2d, rectangle2d, valueaxis, valueaxis, xyannotation, xyannotation, xyplot, xyplot

The jfreechart source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
 * Project Info:
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 * -----------------
 * -----------------
 * (C) Copyright 2002-2008, by Object Refinery Limited.
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 * Changes:
 * --------
 * 28-Aug-2002 : Version 1 (DG);
 * 07-Nov-2002 : Fixed errors reported by Checkstyle (DG);
 * 13-Jan-2003 : Reviewed Javadocs (DG);
 * 09-May-2003 : Added plot to draw() method (DG);
 * 02-Jul-2003 : Eliminated the Annotation base interface (DG);
 * 29-Sep-2004 : Added 'rendererIndex' and 'info' parameter to draw() method
 *               to support chart entities (tool tips etc) (DG);

package org.jfree.chart.annotations;

import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;

import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.PlotRenderingInfo;
import org.jfree.chart.plot.XYPlot;

 * The interface that must be supported by annotations that are to be added to
 * an {@link XYPlot}.
public interface XYAnnotation {

     * Draws the annotation.
     * @param g2  the graphics device.
     * @param plot  the plot.
     * @param dataArea  the data area.
     * @param domainAxis  the domain axis.
     * @param rangeAxis  the range axis.
     * @param rendererIndex  the renderer index.
     * @param info  an optional info object that will be populated with
     *              entity information.
    public void draw(Graphics2D g2, XYPlot plot, Rectangle2D dataArea,
                     ValueAxis domainAxis, ValueAxis rangeAxis,
                     int rendererIndex,
                     PlotRenderingInfo info);


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