GeometryGraph.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
 * Copyright (C) 2005-2006 Refractions Research Inc.
 * Copyright (C) 2001-2002 Vivid Solutions 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: geomgraph/GeometryGraph.java r428 (JTS-1.12+)
 *
 **********************************************************************/
 
 
#ifndef GEOS_GEOMGRAPH_GEOMETRYGRAPH_H
#define GEOS_GEOMGRAPH_GEOMETRYGRAPH_H
 
#include <geos/export.h>
#include <map>
#include <vector>
#include <memory>
 
#include <geos/geom/Coordinate.h>
#include <geos/geom/CoordinateSequence.h> // for auto_ptr<CoordinateSequence>
#include <geos/geomgraph/PlanarGraph.h>
#include <geos/geom/LineString.h> // for LineStringLT
 
#include <geos/inline.h>
 
#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 LineString;
                class LinearRing;
                class Polygon;
                class Geometry;
                class GeometryCollection;
                class Point;
                class Envelope;
        }
        namespace algorithm {
                class LineIntersector;
                class BoundaryNodeRule;
        }
        namespace geomgraph {
                class Edge;
                class Node;
                namespace index {
                        class SegmentIntersector;
                        class EdgeSetIntersector;
                }
        }
}
 
namespace geos {
namespace geomgraph { // geos.geomgraph

class GEOS_DLL GeometryGraph: public PlanarGraph
{
using PlanarGraph::add;
using PlanarGraph::findEdge;
 
private:
 
        const geom::Geometry* parentGeom;

//std::map<const geom::LineString*,Edge*,geom::LineStringLT> lineEdgeMap;
        std::map<const geom::LineString*, Edge*> lineEdgeMap;

        bool useBoundaryDeterminationRule;
 
        const algorithm::BoundaryNodeRule& boundaryNodeRule;

        int argIndex;

        std::auto_ptr< geom::CoordinateSequence > boundaryPoints;
 
        std::auto_ptr< std::vector<Node*> > boundaryNodes;
 
        bool hasTooFewPointsVar;
 
        geom::Coordinate invalidPoint; 

        index::EdgeSetIntersector* createEdgeSetIntersector();
 
        void add(const geom::Geometry *g);
                // throw(UnsupportedOperationException);
 
        void addCollection(const geom::GeometryCollection *gc);
 
        void addPoint(const geom::Point *p);
 
        void addPolygonRing(const geom::LinearRing *lr,
                        int cwLeft, int cwRight);
 
        void addPolygon(const geom::Polygon *p);
 
        void addLineString(const geom::LineString *line);
 
        void insertPoint(int argIndex, const geom::Coordinate& coord,
                        int onLocation);

        void insertBoundaryPoint(int argIndex, const geom::Coordinate& coord);
 
        void addSelfIntersectionNodes(int argIndex);

        void addSelfIntersectionNode(int argIndex,
                const geom::Coordinate& coord, int loc);
 
    // Declare type as noncopyable
    GeometryGraph(const GeometryGraph& other);
    GeometryGraph& operator=(const GeometryGraph& rhs);
 
public:
 
        static bool isInBoundary(int boundaryCount);
 
        static int determineBoundary(int boundaryCount);
 
        static int determineBoundary(
                     const algorithm::BoundaryNodeRule& boundaryNodeRule,
                                                    int boundaryCount);
 
        GeometryGraph();
 
        GeometryGraph(int newArgIndex, const geom::Geometry *newParentGeom);
 
        GeometryGraph(int newArgIndex, const geom::Geometry *newParentGeom,
                      const algorithm::BoundaryNodeRule& boundaryNodeRule);
 
        virtual ~GeometryGraph();
 
 
        const geom::Geometry* getGeometry();

        std::vector<Node*>* getBoundaryNodes();
 
        void getBoundaryNodes(std::vector<Node*>&bdyNodes);

        geom::CoordinateSequence* getBoundaryPoints();
 
        Edge* findEdge(const geom::LineString *line);
 
        void computeSplitEdges(std::vector<Edge*> *edgelist);
 
        void addEdge(Edge *e);
 
        void addPoint(geom::Coordinate& pt);

        index::SegmentIntersector* computeSelfNodes(
                        algorithm::LineIntersector *li,
                        bool computeRingSelfNodes,
                        const geom::Envelope *env=0)
        {
                return computeSelfNodes(*li, computeRingSelfNodes, env);
        }
 
        index::SegmentIntersector* computeSelfNodes(
                        algorithm::LineIntersector *li,
                        bool computeRingSelfNodes,
                        bool isDoneIfProperInt,
                        const geom::Envelope *env=0)
        {
                return computeSelfNodes(*li, computeRingSelfNodes, isDoneIfProperInt, env);
        }
 
        // Quick inline calling the function above, the above should probably
        // be deprecated.
        index::SegmentIntersector* computeSelfNodes(
                        algorithm::LineIntersector& li,
                        bool computeRingSelfNodes, const geom::Envelope *env=0);
 
        index::SegmentIntersector* computeSelfNodes(
                        algorithm::LineIntersector& li,
                        bool computeRingSelfNodes, bool isDoneIfProperInt, const geom::Envelope *env=0);
 
        index::SegmentIntersector* computeEdgeIntersections(GeometryGraph *g,
                algorithm::LineIntersector *li, bool includeProper,
                const geom::Envelope *env=0);
 
        std::vector<Edge*> *getEdges();
 
        bool hasTooFewPoints();
 
        const geom::Coordinate& getInvalidPoint(); 
 
        const algorithm::BoundaryNodeRule& getBoundaryNodeRule() const
        { return boundaryNodeRule; }
 
};
 
 
} // namespace geos.geomgraph
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#ifdef GEOS_INLINE
# include "geos/geomgraph/GeometryGraph.inl"
#endif
 
#endif // ifndef GEOS_GEOMGRAPH_GEOMETRYGRAPH_H