001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-present, by David Gilbert and Contributors.
006 *
007 * Project Info:  http://www.jfree.org/jfreechart/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
022 * USA.
023 *
024 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
025 * Other names may be trademarks of their respective owners.]
026 *
027 * ------------------
028 * ValueAxisPlot.java
029 * ------------------
030 *
031 * (C) Copyright 2003-present, by David Gilbert and Contributors.
032 *
033 * Original Author:  David Gilbert;
034 * Contributor(s):   -;
035 *
036 */
037
038package org.jfree.chart.plot;
039
040import org.jfree.chart.axis.ValueAxis;
041import org.jfree.data.Range;
042
043/**
044 * An interface that is implemented by plots that use a {@link ValueAxis},
045 * providing a standard method to find the current data range.
046 */
047public interface ValueAxisPlot {
048
049    /**
050     * Returns the data range that should apply for the specified axis.
051     *
052     * @param axis  the axis.
053     *
054     * @return The data range.
055     */
056    Range getDataRange(ValueAxis axis);
057
058}