Application: gvSIG desktop

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 * 

 * This program 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 General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 

 * MA  02110-1301, USA.

 * 

 */

/*

 * AUTHORS (In addition to CIT):

 * 2009 {Iver T.I.}   {Task}

 */

/*

 * AUTHORS (In addition to CIT):

 * 2009 Instituto de Autom?tica e Inform?tica Industrial, UPV.

 */

package org.gvsig.fmap.geom.primitive;

/**

 * <p>

 * This interface is equivalent to the GM_Surface specified in <a href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=26012"

 * >ISO 19107</a>. Surface is a subclass of {@link Primitive} and is the basis

 * for 2-dimensional geometry. Unorientable surfaces such as the M?bius band

 * are not allowed.

 * <p/>

 * <p>

 * The orientation of a surface chooses an "up" direction through the choice of

 * the upward normal, which, if the surface is not a cycle, is the side of the

 * surface from which the exterior boundary appears counterclockwise. Reversal

 * of the surface orientation reverses the curve orientation of each boundary

 * component, and interchanges the conceptual "up" and "down" direction of the

 * surface.

 * </p>

 * <p>

 * If the surface is the boundary of a solid, the "up" direction is usually

 * outward. For closed surfaces, which have no boundary, the up direction is

 * that of the surface patches, which must be consistent with one another.

 * </p>

 * 

 * @see <a

 *      href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=26012">ISO

 *      19107</a>

 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>

 * @author <a href="mailto:jtorres@ai2.upv.es">Jordi Torres Fabra</a>

 */

public interface Surface extends OrientableSurface {

        /**

         * Sets the appearance of the Surface

         * 

         * @param app

         *            The appearance of the surface

         */

        public void setSurfaceAppearance(SurfaceAppearance app);

        /**

         * Gets surface appearance

         * 

         * @return the surface appearance

         * 

         */

        public SurfaceAppearance getSurfaceAppearance();

}