001/*
002 * JScience - Java(TM) Tools and Libraries for the Advancement of Sciences.
003 * Copyright (C) 2006 - JScience (http://jscience.org/)
004 * All rights reserved.
005 * 
006 * Permission to use, copy, modify, and distribute this software is
007 * freely granted, provided that this notice is preserved.
008 */
009package javax.measure.quantity;
010import javax.measure.unit.SI;
011import javax.measure.unit.Unit;
012
013/**
014 * This interface represents the angle formed by three or more planes intersecting
015 * at a common point. The system unit for this quantity is "sr" (steradian).
016 * This quantity is dimensionless.
017 * 
018 * @author  <a href="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a>
019 * @version 1.0, January 14, 2006
020 */
021public interface SolidAngle extends Dimensionless {
022
023    /**
024     * Holds the SI unit (Système International d'Unités) for this quantity.
025     */
026    public final static Unit<SolidAngle> UNIT = SI.STERADIAN;
027
028}