/*$************************************************************************************************
 **
 ** $Id: TemporalCoordinate.java 1122 2007-11-24 18:49:16Z desruisseaux $
 **
 ** $URL: https://geoapi.svn.sourceforge.net/svnroot/geoapi/tags/2.1.1/geoapi/src/main/java/org/opengis/temporal/TemporalCoordinate.java $
 **
 ** Copyright (C) 2005 Open GIS Consortium, Inc.
 ** All Rights Reserved. http://www.opengis.org/legal/
 **
 *************************************************************************************************/
package org.opengis.temporal;

import org.opengis.annotation.UML;

import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;


/**
 * A data type that shall be used for identifying temporal position within a temporal coordinate
 * system.
 *
 * @author Stephane Fellah (Image Matters)
 * @author Alexander Petkov
 */
@UML(identifier="TM_Coordinate", specification=ISO_19108)
public interface TemporalCoordinate extends TemporalPosition {
    /**
     * Returns the distance from the scale origin expressed as a multiple of the standard
     * interval associated with the temporal coordinate system.
     *
     * @todo Should we return a primitive type?
     */
    @UML(identifier="CoordinateValue", obligation=MANDATORY, specification=ISO_19108)
    Number getCoordinateValue();
}
