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Java > Open Source Codes > org > jfree > chart > plot > ValueAxisPlot


1 /* ===========================================================
2  * JFreeChart : a free chart library for the Java(tm) platform
3  * ===========================================================
4  *
5  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
6  *
7  * Project Info: http://www.jfree.org/jfreechart/index.html
8  *
9  * This library is free software; you can redistribute it and/or modify it
10  * under the terms of the GNU Lesser General Public License as published by
11  * the Free Software Foundation; either version 2.1 of the License, or
12  * (at your option) any later version.
13  *
14  * This library is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17  * License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public License
20  * along with this library; if not, write to the Free Software Foundation,
21  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
22  *
23  * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
24  * in the United States and other countries.]
25  *
26  * ------------------
27  * ValueAxisPlot.java
28  * ------------------
29  *
30  * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
31  *
32  * Original Author: David Gilbert (for Object Refinery Limited);
33  * Contributor(s): -;
34  *
35  * Changes
36  * -------
37  * 07-May-2003 : Version 1 (DG);
38  * 11-Nov-2004 : Changed Horizontal --> Domain and Vertical --> Range (DG);
39  * 12-Nov-2004 : Moved zooming methods to new Zoomable interface (DG);
40  *
41  */
42
43 package org.jfree.chart.plot;
44
45 import org.jfree.chart.axis.ValueAxis;
46 import org.jfree.data.Range;
47
48 /**
49  * An interface that is implemented by plots that use a {@link ValueAxis},
50  * providing a standard method to find the current data range.
51  */
52 public interface ValueAxisPlot {
53
54     /**
55      * Returns the data range that should apply for the specified axis.
56      *
57      * @param axis the axis.
58      *
59      * @return The data range.
60      */
61     public Range getDataRange(ValueAxis axis);
62
63 }
64
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