001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2007, by Object Refinery Limited 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 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 *
027 * -------------------------
028 * ContourPlotUtilities.java
029 * -------------------------
030 * (C) Copyright 2002-2007, by David M. O'Donnell and Contributors.
031 *
032 * Original Author: David M. O'Donnell;
033 * Contributor(s): David Gilbert (for Object Refinery Limited);
034 *
035 * $Id: ContourPlotUtilities.java,v 1.2.2.3 2007/01/31 15:56:18 mungady Exp $
036 *
037 * Changes
038 * -------
039 * 26-Nov-2002 : Version 1 contributed by David M. O'Donnell (DG);
040 * 22-Jul-2003 : Made this class abstract as there is no need to instantiate
041 * it (DG);
042 * ------------- JFREECHART 1.0.x ---------------------------------------------
043 * 31-Jan-2007 : Deprecated (DG);
044 *
045 */
046
047 package org.jfree.chart.plot;
048
049 import org.jfree.chart.renderer.xy.XYBlockRenderer;
050 import org.jfree.data.Range;
051 import org.jfree.data.contour.ContourDataset;
052 import org.jfree.data.contour.DefaultContourDataset;
053
054 /**
055 * Some utility methods for the {@link ContourPlot} class.
056 *
057 * @deprecated This class is no longer supported. If you are creating
058 * contour plots, please try to use {@link XYPlot} and
059 * {@link XYBlockRenderer}.
060 */
061 public abstract class ContourPlotUtilities {
062
063 /**
064 * Returns the visible z-range.
065 *
066 * @param data the dataset.
067 * @param x the x range.
068 * @param y the y range.
069 *
070 * @return The range.
071 */
072 public static Range visibleRange(ContourDataset data, Range x, Range y) {
073 Range range = null;
074 range = ((DefaultContourDataset) data).getZValueRange(x, y);
075 return range;
076 }
077
078 }