IndexedFacetDistance.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2016 Daniel Baston
 *
 * 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: operation/distance/IndexedFacetDistance.java (f6187ee2 JTS-1.14)
 *
 **********************************************************************/
 
#ifndef GEOS_INDEXEDFACETDISTANCE_H
#define GEOS_INDEXEDFACETDISTANCE_H
 
#include <geos/operation/distance/FacetSequenceTreeBuilder.h>
 
namespace geos {
namespace operation {
namespace distance {
class GEOS_DLL IndexedFacetDistance {
public:
    IndexedFacetDistance(const geom::Geometry* g) :
        cachedTree(FacetSequenceTreeBuilder::build(g))
    {}
 
    static double distance(const geom::Geometry* g1, const geom::Geometry* g2);
 
    static std::vector<geom::Coordinate> nearestPoints(const geom::Geometry* g1, const geom::Geometry* g2);
 
    double distance(const geom::Geometry* g) const;
 
    std::vector<GeometryLocation> nearestLocations(const geom::Geometry* g) const;
    std::vector<geom::Coordinate> nearestPoints(const geom::Geometry* g) const;
 
    ~IndexedFacetDistance();
 
private:
    std::unique_ptr<geos::index::strtree::STRtree> cachedTree;
 
};
}
}
}
 
#endif //GEOS_INDEXEDFACETDISTANCE_H