47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
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/**********************************************************************
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*
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* GEOS - Geometry Engine Open Source
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* http://geos.osgeo.org
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*
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* Copyright (C) 2022 ISciences LLC
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU Lesser General Public Licence as published
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* by the Free Software Foundation.
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* See the COPYING file for more information.
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*
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**********************************************************************/
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#pragma once
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#include <geos/export.h>
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#include <geos/geom/Geometry.h>
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#include <geos/geom/GeometryFactory.h>
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#include <geos/geom/GeometryCollection.h>
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namespace geos {
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namespace operation {
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namespace cluster {
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class GEOS_DLL GeometryFlattener {
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public:
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/** Flatten a geometry such that it contains no nested components (e.g., MultiPolygons within
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* GeometryCollections, etc.). The flattened geometry will use the most narrow representation
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* possible (Polygon preferred to MultiPolygon, MultiPolygon preferred to GeometryCollection.)
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*
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* @brief flatten
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* @param g a geometry to be flattened; consumed by the function
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* @return a geometry with no nested components
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*/
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static std::unique_ptr<geom::Geometry> flatten(std::unique_ptr<geom::Geometry>&& g);
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private:
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static void flatten(std::unique_ptr<geom::Geometry>&& g, std::vector<std::unique_ptr<geom::Geometry>>& components);
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};
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}
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}
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}
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