EdgeEndBuilder.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/relate/EdgeEndBuilder.java rev. 1.12 (JTS-1.10)
 *
 **********************************************************************/
 
#ifndef GEOS_OP_RELATE_EDGEENDBUILDER_H
#define GEOS_OP_RELATE_EDGEENDBUILDER_H
 
#include <geos/export.h>
 
#include <vector>
 
// Forward declarations
namespace geos {
        namespace geom {
                class IntersectionMatrix;
                class Coordinate;
        }
        namespace geomgraph {
                class Edge;
                class EdgeIntersection;
                class EdgeEnd;
        }
}
 
 
namespace geos {
namespace operation { // geos::operation
namespace relate { // geos::operation::relate

class GEOS_DLL EdgeEndBuilder {
public:
        EdgeEndBuilder() {}
 
        std::vector<geomgraph::EdgeEnd*> *computeEdgeEnds(std::vector<geomgraph::Edge*> *edges);
        void computeEdgeEnds(geomgraph::Edge *edge,std::vector<geomgraph::EdgeEnd*> *l);
 
protected:
 
        void createEdgeEndForPrev(geomgraph::Edge *edge,
                        std::vector<geomgraph::EdgeEnd*> *l,
                        geomgraph::EdgeIntersection *eiCurr,
                        geomgraph::EdgeIntersection *eiPrev);
 
        void createEdgeEndForNext(geomgraph::Edge *edge,
                        std::vector<geomgraph::EdgeEnd*> *l,
                        geomgraph::EdgeIntersection *eiCurr,
                        geomgraph::EdgeIntersection *eiNext);
};
 
} // namespace geos:operation:relate
} // namespace geos:operation
} // namespace geos
 
#endif // GEOS_OP_RELATE_EDGEENDBUILDER_H