planargraph/Node.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_NODE_H
#define GEOS_PLANARGRAPH_NODE_H

#include <geos/export.h>

#include <geos/planargraph/GraphComponent.h> // for inheritance
#include <geos/planargraph/DirectedEdgeStar.h> // for inlines
#include <geos/geom/Coordinate.h> // for composition

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

namespace geos {
namespace planargraph { // geos.planargraph

class GEOS_DLL Node: public GraphComponent {
protected:

    geom::Coordinate pt;

    DirectedEdgeStar* deStar;

public:

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

    static std::vector<Edge*>* getEdgesBetween(Node* node0,
            Node* node1);

    Node(const geom::Coordinate& newPt)
        :
        pt(newPt)
    {
        deStar = new DirectedEdgeStar();
    }

    ~Node() override
    {
        delete deStar;
    }

    Node(geom::Coordinate& newPt, DirectedEdgeStar* newDeStar)
        :
        pt(newPt),
        deStar(newDeStar)
    {}

    geom::Coordinate&
    getCoordinate()
    {
        return pt;
    }

    void
    addOutEdge(DirectedEdge* de)
    {
        deStar->add(de);
    }

    DirectedEdgeStar*
    getOutEdges()
    {
        return deStar;
    }
    const DirectedEdgeStar*
    getOutEdges() const
    {
        return deStar;
    }

    size_t
    getDegree() const
    {
        return deStar->getDegree();
    }

    int
    getIndex(Edge* edge)
    {
        return deStar->getIndex(edge);
    }

private:

    Node(const Node&) = delete;
    Node& operator=(const Node&) = delete;

};

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


//typedef Node planarNode;

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

#endif // GEOS_PLANARGRAPH_NODE_H