PolygonExtracter.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 * Copyright (C) 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.
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
#include <geos/geom/GeometryFilter.h>
#include <geos/geom/Polygon.h>
#include <vector>
 
namespace geos {
namespace geom { // geos.geom
namespace util { // geos.geom.util
 
class GEOS_DLL PolygonExtracter: public GeometryFilter {
 
public:
 
    static void getPolygons(const Geometry& geom, std::vector<const Polygon*>& ret);
 
    PolygonExtracter(std::vector<const Polygon*>& newComps);
 
    void filter_rw(Geometry* geom) override;
 
    void filter_ro(const Geometry* geom) override;
 
private:
 
    std::vector<const Polygon*>& comps;
 
    // Declare type as noncopyable
    PolygonExtracter(const PolygonExtracter& other) = delete;
    PolygonExtracter& operator=(const PolygonExtracter& rhs) = delete;
};
 
} // namespace geos.geom.util
} // namespace geos.geom
} // namespace geos