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/* EmbeddingView.java
* =========================================================================
* This file is part of the GrInvIn project - http://www.grinvin.org
*
* Copyright (C) 2005-2008 Universiteit Gent
*
* 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.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
package org.grinvin.graphs;
/**
* <p>
* Interface representing a embedding of a graph into Euclidian n-space.<p>
*
* The abstract graph for which this is an embedding is called
* the <i>peer</i> of this embedding and is of type {@link GraphView}.
* Note that the same abstract graph may act as a peer to different
* embedded graphs at the same time.<p>
*
* When the peer graph is mutable, every embedding is supposed to also keep
* track of the coordinates of the zombie vertices of that peer,
* i.e., vertices that used to belong to the graph but were removed later.
*
* <p>
* This interface only provides read access to the embedded graph. Use the interface
* {@link Embedding} if you also need write access.
* </p>
*/
public interface EmbeddingView {
/**
* Returns the peer graph for this embedding.
*/
public GraphView getPeer ();
/**
* Returns the dimension of the Euclidian space into which this graph
* is embedded.
*/
public int getDimension ();
/**
* Return the coordinates of the given vertex.
* @throws IllegalArgumentException when the parameter is not a vertex
* of the peer graph.
*/
public double[] getCoordinates (Vertex v);
}
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