planargraph/PlanarGraph.h

/**********************************************************************
 * $Id: PlanarGraph.h 2556 2009-06-06 22:22:28Z strk $
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.refractions.net
 *
 * 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_PLANARGRAPH_H
#define GEOS_PLANARGRAPH_PLANARGRAPH_H

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

#include <vector> // for typedefs

// 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();
        }

        std::vector<Node*>* getNodes() { return nodeMap.getNodes(); }

        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(size_t degree);
};

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

#endif // GEOS_PLANARGRAPH_PLANARGRAPH_H

/**********************************************************************
 * $Log$
 * Revision 1.2  2006/06/12 10:49:43  strk
 * unsigned int => size_t
 *
 * Revision 1.1  2006/03/21 21:42:54  strk
 * planargraph.h header split, planargraph:: classes renamed to match JTS symbols
 *
 **********************************************************************/

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