//
// ScreenAnnotation.java
//
/*
VisAD system for interactive analysis and visualization of numerical
data. Copyright (C) 1996 - 2017 Bill Hibbard, Curtis Rueden, Tom
Rink, Dave Glowacki, Steve Emmerson, Tom Whittaker, Don Murray, and
Tommy Jasmin.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library 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
*/
package visad.bom.annotations;
import visad.DisplayImpl;
import visad.VisADException;
/**
* This ensures that all objects being used for annotations onto
* a VisAD display have the method toDrawable() as required for
* {@link ScreenAnnotator}.
*/
public interface ScreenAnnotation
{
/**
* Make the Object into a {@link javax.media.j3d.Shape3D}.
*
* @param display the VisAD display for this Annotation.
*
* @return the <code>ScreenAnnotation</code> as an object
* which can be drawn.
*
* @throws VisADException there's a problem with VisAD.
*/
Object toDrawable(DisplayImpl display) throws VisADException;
}