content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2008, 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., 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.]
   *
   * -------------------------
   * ContourPlotUtilities.java
   * -------------------------
   * (C) Copyright 2002-2008, by David M. O'Donnell and Contributors.
   *
   * Original Author:  David M. O'Donnell;
   * Contributor(s):   David Gilbert (for Object Refinery Limited);
   *
   * Changes
   * -------
   * 26-Nov-2002 : Version 1 contributed by David M. O'Donnell (DG);
   * 22-Jul-2003 : Made this class abstract as there is no need to instantiate
   *               it (DG);
   * ------------- JFREECHART 1.0.x ---------------------------------------------
   * 31-Jan-2007 : Deprecated (DG);
   *
   */
  
  package org.jfree.chart.plot;
  
  import org.jfree.chart.renderer.xy.XYBlockRenderer;
  import org.jfree.data.Range;
  import org.jfree.data.contour.ContourDataset;
  import org.jfree.data.contour.DefaultContourDataset;
  
  /**
   * Some utility methods for the {@link ContourPlot} class.
   *
   * @deprecated This class is no longer supported (as of version 1.0.4).  If
   *     you are creating contour plots, please try to use {@link XYPlot} and
   *     {@link XYBlockRenderer}.
   */
  public abstract class ContourPlotUtilities {
  
      /**
       * Returns the visible z-range.
       *
       * @param data  the dataset.
       * @param x  the x range.
       * @param y  the y range.
       *
       * @return The range.
       */
      public static Range visibleRange(ContourDataset data, Range x, Range y) {
          Range range = null;
          range = ((DefaultContourDataset) data).getZValueRange(x, y);
          return range;
      }
  
  }
  