planargraph/Edge.h

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/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 * Copyright (C) 2005-2006 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.
 *
 **********************************************************************/

#ifndef GEOS_PLANARGRAPH_EDGE_H
#define GEOS_PLANARGRAPH_EDGE_H

#include <geos/export.h>

#include <geos/planargraph/GraphComponent.h> // for inheritance

#include <vector> // for typedefs
#include <set> // for typedefs
#include <iosfwd> // ostream

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif

// Forward declarations
namespace geos {
namespace planargraph {
class DirectedEdgeStar;
class DirectedEdge;
class Edge;
class Node;
}
}

namespace geos {
namespace planargraph { // geos.planargraph

class GEOS_DLL Edge: public GraphComponent {

public:

    friend std::ostream& operator<< (std::ostream& os, const Node&);

    typedef std::set<const Edge*> ConstSet;

    typedef std::set<Edge*> NonConstSet;

    typedef std::vector<Edge*> NonConstVect;

    typedef std::vector<const Edge*> ConstVect;

protected:

    std::vector<DirectedEdge*> dirEdge;

public:

    Edge(): dirEdge() {}

    Edge(DirectedEdge* de0, DirectedEdge* de1)
        :
        dirEdge()
    {
        setDirectedEdges(de0, de1);
    }

    void setDirectedEdges(DirectedEdge* de0, DirectedEdge* de1);

    DirectedEdge* getDirEdge(int i);

    DirectedEdge* getDirEdge(Node* fromNode);

    Node* getOppositeNode(Node* node);
};

std::ostream& operator<<(std::ostream& os, const Edge& n);

//typedef Edge planarEdge;

} // namespace geos::planargraph
} // namespace geos

#ifdef _MSC_VER
#pragma warning(pop)
#endif

#endif // GEOS_PLANARGRAPH_EDGE_H