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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.util.tree;
/**
* An animation that can be played in series of steps.
*
* @author pabercrombie
* @version $Id: Animation.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public interface Animation
{
/**
* Reset the animation to the starting state.
*/
void reset();
/**
* Step the animation.
*/
void step();
/**
* Indicates whether or not there more steps left in the animation.
*
* @return {@code true} if there are more steps.
*/
boolean hasNext();
}