planargraph/PlanarGraph.h

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/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * 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.
 *
 **********************************************************************
 *
 * Last port: planargraph/PlanarGraph.java rev. 107/138 (JTS-1.10)
 *
 **********************************************************************/

#ifndef GEOS_PLANARGRAPH_PLANARGRAPH_H
#define GEOS_PLANARGRAPH_PLANARGRAPH_H

#include <geos/export.h>
#include <geos/planargraph/NodeMap.h> // for composition

#include <vector> // for typedefs

#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 geom {
class Coordinate;
}
namespace planargraph {
class DirectedEdge;
class Edge;
class Node;
}
}

namespace geos {
namespace planargraph { // geos.planargraph

class GEOS_DLL PlanarGraph {

protected:

    std::vector<Edge*> edges;
    std::vector<DirectedEdge*> dirEdges;
    NodeMap nodeMap;

    void
    add(Node* node)
    {
        nodeMap.add(node);
    }

    void add(Edge* edge);

    void
    add(DirectedEdge* dirEdge)
    {
        dirEdges.push_back(dirEdge);
    }

public:

    typedef std::vector<Edge*> EdgeContainer;
    typedef EdgeContainer::iterator EdgeIterator;


    PlanarGraph() {}

    virtual
    ~PlanarGraph() {}

    Node*
    findNode(const geom::Coordinate& pt)
    {
        return nodeMap.find(pt);
    }

    NodeMap::container::iterator
    nodeIterator()
    {
        return nodeMap.begin();
    }

    NodeMap::container::iterator
    nodeBegin()
    {
        return nodeMap.begin();
    }

    NodeMap::container::const_iterator
    nodeBegin() const
    {
        return nodeMap.begin();
    }

    NodeMap::container::iterator
    nodeEnd()
    {
        return nodeMap.end();
    }

    NodeMap::container::const_iterator
    nodeEnd() const
    {
        return nodeMap.end();
    }

    void
    getNodes(std::vector<Node*>& nodes)
    {
        nodeMap.getNodes(nodes);
    }

    std::vector<DirectedEdge*>::iterator
    dirEdgeIterator()
    {
        return dirEdges.begin();
    }

    std::vector<Edge*>::iterator
    edgeIterator()
    {
        return edges.begin();
    }

    //
    std::vector<Edge*>::iterator
    edgeBegin()
    {
        return edges.begin();
    }

    //
    std::vector<Edge*>::iterator
    edgeEnd()
    {
        return edges.end();
    }

    std::vector<Edge*>*
    getEdges()
    {
        return &edges;
    }

    void remove(Edge* edge);

    void remove(DirectedEdge* de);

    void remove(Node* node);

    std::vector<Node*>* findNodesOfDegree(std::size_t degree);

    void findNodesOfDegree(std::size_t degree, std::vector<Node*>& to);
};

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

#ifdef _MSC_VER
#pragma warning(pop)
#endif

#endif // GEOS_PLANARGRAPH_PLANARGRAPH_H