1. /* ===========================================================

  2.  * JFreeChart : a free chart library for the Java(tm) platform

  3.  * ===========================================================

  4.  *

  5.  * (C) Copyright 2000-2004, 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 under the terms

  10.  * of the GNU Lesser General Public License as published by the Free Software Foundation;

  11.  * either version 2.1 of the License, or (at your option) any later version.

  12.  *

  13.  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

  14.  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  15.  * See the GNU Lesser General Public License for more details.

  16.  *

  17.  * You should have received a copy of the GNU Lesser General Public License along with this

  18.  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,

  19.  * Boston, MA 02111-1307, USA.

  20.  *

  21.  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 

  22.  * in the United States and other countries.]

  23.  *

  24.  * ----------------

  25.  * WindDataset.java

  26.  * ----------------

  27.  * (C) Copyright 2001-2004, by Achilleus Mantzios and Contributors.

  28.  *

  29.  * Original Author:  Achilleus Mantzios;

  30.  * Contributor(s):   David Gilbert (for Object Refinery Limited);

  31.  *

  32.  * $Id: WindDataset.java,v 1.1 2004/08/31 15:36:12 mungady Exp $

  33.  *

  34.  * Changes

  35.  * -------

  36.  * 06-Feb-2002 : Version 1, based on code contributed by Achilleus Mantzios (DG);

  37.  *

  38.  */

  39. 

  40. package org.jfree.data.xy;

  41. 

  42. 

  43. /**

  44.  * Interface for a dataset that supplies wind intensity and direction values

  45.  * observed at various points in time.

  46.  *

  47.  * @author Achilleus Mantzios

  48.  */

  49. public interface WindDataset extends XYDataset {

  50. 

  51.     /**

  52.      * Returns the wind direction (should be in the range 0 to 12).

  53.      * @param series    The series (zero-based index).

  54.      * @param item      The item (zero-based index).

  55.      * @return The wind direction.

  56.      */

  57.     public Number getWindDirection(int series, int item);

  58. 

  59.     /**

  60.      * Returns the wind force on the Beaufort scale (0 to 12).

  61.      * @param   series The series (zero-based index).

  62.      * @param   item The item (zero-based index).

  63.      * @return The wind force.

  64.      */

  65.     public Number getWindForce(int series, int item);

  66. 

  67. }