DYT/Tool/OpenSceneGraph-3.6.5/include/geos/geom/util/PolygonalExtracter.h
2024-12-25 07:49:36 +08:00

55 lines
1.5 KiB
C++

/**********************************************************************
*
* 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/Geometry.h>
#include <vector>
namespace geos {
namespace geom { // geos.geom
namespace util { // geos.geom.util
/**
* \brief Extracts the polygonal (Polygon and MultiPolygon) elements from a Geometry.
*/
class GEOS_DLL PolygonalExtracter {
public:
/**
* Pushes the polygonal (Polygon and MultiPolygon) elements from a geometry into
* the provided vector.
*
* @param geom the geometry to extract from
* @param polys the vector to add the polygonal elements to
*/
static void getPolygonals(const Geometry& geom, std::vector<const Geometry*>& polys);
private:
static void getPolygonals(const Geometry* geom, std::vector<const Geometry*>& polys);
// Declare type as noncopyable
PolygonalExtracter(const PolygonalExtracter& other) = delete;
PolygonalExtracter& operator=(const PolygonalExtracter& rhs) = delete;
};
} // namespace geos.geom.util
} // namespace geos.geom
} // namespace geos