SIRtreePointInRing.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * 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.
 *
 **********************************************************************/
 
#ifndef GEOS_ALGORITHM_SIRTREEPOINTINRING_H
#define GEOS_ALGORITHM_SIRTREEPOINTINRING_H
 
#include <geos/export.h>
#include <geos/algorithm/PointInRing.h> // for inheritance
 
#include <vector>
 
// Forward declarations
namespace geos {
        namespace geom {
                class Coordinate;
                class LineSegment;
                class LinearRing;
        }
        namespace index {
                namespace strtree {
                        class SIRtree;
                }
        }
}
 
 
namespace geos {
namespace algorithm { // geos::algorithm
 
class GEOS_DLL SIRtreePointInRing: public PointInRing {
private:
        geom::LinearRing *ring;
        index::strtree::SIRtree *sirTree;
        int crossings;  // number of segment/ray crossings
        void buildIndex();
        void testLineSegment(const geom::Coordinate& p,
                        geom::LineSegment *seg);
public:
        SIRtreePointInRing(geom::LinearRing *newRing);
        ~SIRtreePointInRing();
        bool isInside(const geom::Coordinate& pt);
};
 
} // namespace geos::algorithm
} // namespace geos
 
 
#endif // GEOS_ALGORITHM_SIRTREEPOINTINRING_H