/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2007, 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.]
*
* -------------------
* TickUnitSource.java
* -------------------
* (C) Copyright 2003-2007, by Object Refinery Limited.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes
* -------
* 23-Sep-2003 : Version 1 (DG);
*
*/
package org.jfree.chart.axis;
/**
* An interface used by the {@link DateAxis} and {@link NumberAxis} classes to
* obtain a suitable {@link TickUnit}.
*/
public interface TickUnitSource {
/**
* Returns a tick unit that is larger than the supplied unit.
*
* @param unit the unit.
*
* @return A tick unit that is larger than the supplied unit.
*/
public TickUnit getLargerTickUnit(TickUnit unit);
/**
* Returns the tick unit in the collection that is greater than or equal
* to (in size) the specified unit.
*
* @param unit the unit.
*
* @return A unit from the collection.
*/
public TickUnit getCeilingTickUnit(TickUnit unit);
/**
* Returns the tick unit in the collection that is greater than or equal
* to the specified size.
*
* @param size the size.
*
* @return A unit from the collection.
*/
public TickUnit getCeilingTickUnit(double size);
}
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