/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2011, Open Source Geospatial Foundation (OSGeo)
* (C) 2003-2005, Open Geospatial Consortium Inc.
*
* All Rights Reserved. http://www.opengis.org/legal/
*/
package org.opengis.geometry.primitive;
import org.opengis.geometry.complex.CompositeSurface;
import org.opengis.annotation.Association;
import org.opengis.annotation.UML;
import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;
/**
* A surface and an orientation inherited from {@link OrientablePrimitive}. If the orientation is
* positive, then the {@code OrientableSurface} is a {@linkplain Surface surface}. If the
* orientation is negative, then the {@code OrientableSurface} is a reference to a
* {@linkplain Surface surface} with an upNormal that reverses the direction for this
* {@code OrientableSurface}, the sense of "the top of the surface".
*
*
* @source $URL: http://svn.osgeo.org/geotools/trunk/modules/library/opengis/src/main/java/org/opengis/geometry/primitive/OrientableSurface.java $
* @version <A HREF="http://www.opengeospatial.org/standards/as">ISO 19107</A>
* @author Martin Desruisseaux (IRD)
* @since GeoAPI 1.0
*/
@UML(identifier="GM_OrientableSurface", specification=ISO_19107)
public interface OrientableSurface extends OrientablePrimitive {
/**
* Returns the set of circular sequences of {@linkplain OrientableCurve orientable curve} that
* limit the extent of this {@code OrientableSurface}. These curves shall be organized
* into one circular sequence of curves for each boundary component of the
* {@code OrientableSurface}. In cases where "exterior" boundary is not
* well defined, all the rings of the {@linkplain SurfaceBoundary surface boundary}
* shall be listed as "interior".
*
* <blockquote><font size=2>
* <strong>NOTE:</strong> The concept of exterior boundary for a surface is really only
* valid in a 2-dimensional plane. A bounded cylinder has two boundary components, neither
* of which can logically be classified as its exterior. Thus, in 3 dimensions, there is no
* valid definition of exterior that covers all cases.
* </font></blockquote>
*
* @return The sets of positions on the boundary.
*/
@UML(identifier="boundary", obligation=MANDATORY, specification=ISO_19107)
SurfaceBoundary getBoundary();
/**
* Returns the primitive associated with this {@code OrientableSurface}.
*
* @return The primitive, or {@code null} if the association is
* not available or not implemented that way.
*
* @see Surface#getProxy
* @issue http://jira.codehaus.org/browse/GEO-63
*/
@Association("Oriented")
@UML(identifier="primitive", obligation=OPTIONAL, specification=ISO_19107)
Surface getPrimitive();
/**
* Returns the owner of this orientable surface. This method is <em>optional</em> since
* the association in ISO 19107 is navigable only from {@code CompositeSurface} to
* {@code OrientableSurface}, not the other way.
*
* @return The owner of this orientable surface, or {@code null} if the association is
* not available or not implemented that way.
*
* @see CompositeSurface#getGenerators
* @issue http://jira.codehaus.org/browse/GEO-63
*/
@Association("Composition")
@UML(identifier="composite", obligation=OPTIONAL, specification=ISO_19107)
CompositeSurface getComposite();
}