MaximalEdgeRing.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2006 Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************
 *
 * Last port: operation/overlay/MaximalEdgeRing.java rev. 1.15 (JTS-1.10)
 *
 **********************************************************************/
 
#ifndef GEOS_OP_OVERLAY_MAXIMALEDGERING_H
#define GEOS_OP_OVERLAY_MAXIMALEDGERING_H
 
#include <geos/export.h>
 
#include <vector>
 
#include <geos/geomgraph/EdgeRing.h> // for inheritance
 
// Forward declarations
namespace geos {
        namespace geom {
                class GeometryFactory;
        }
        namespace geomgraph {
                class DirectedEdge;
                //class EdgeRing;
        }
        namespace operation {
                namespace overlay {
                        class MinimalEdgeRing;
                }
        }
}
 
namespace geos {
namespace operation { // geos::operation
namespace overlay { // geos::operation::overlay

class GEOS_DLL MaximalEdgeRing: public geomgraph::EdgeRing {
 
public:
 
        MaximalEdgeRing(geomgraph::DirectedEdge *start,
                const geom::GeometryFactory *geometryFactory);
                        // throw(const TopologyException &)
 
        virtual ~MaximalEdgeRing();
 
        geomgraph::DirectedEdge* getNext(geomgraph::DirectedEdge *de);
 
        void setEdgeRing(geomgraph::DirectedEdge* de, geomgraph::EdgeRing* er);

        std::vector<MinimalEdgeRing*>* buildMinimalRings();

        void buildMinimalRings(std::vector<MinimalEdgeRing*>& minEdgeRings);
        void buildMinimalRings(std::vector<EdgeRing*>& minEdgeRings);

        void linkDirectedEdgesForMinimalEdgeRings();
};
 
 
} // namespace geos::operation::overlay
} // namespace geos::operation
} // namespace geos
 
#endif // ndef GEOS_OP_OVERLAY_MAXIMALEDGERING_H