?? contourplotutilities.java
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/* ======================================
* JFreeChart : a free Java chart library
* ======================================
*
* Project Info: http://www.jfree.org/jfreechart/index.html
* Project Lead: David Gilbert (david.gilbert@object-refinery.com);
*
* (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
*
* 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., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* -------------------------
* ContourPlotUtilities.java
* -------------------------
* (C) Copyright 2002, 2003 by David M. O'Donnell and Contributors.
*
* Original Author: David M. O'Donnell;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: ContourPlotUtilities.java,v 1.5 2003/07/23 15:23:38 mungady Exp $
*
* 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);
*
*/
package org.jfree.chart.plot;
import org.jfree.data.ContourDataset;
import org.jfree.data.DefaultContourDataset;
import org.jfree.data.Range;
/**
* Some utility methods for the {@link ContourPlot} class.
*
* @author David M. O'Donnell
*/
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;
}
}
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