DYT/Tool/OpenSceneGraph-3.6.5/include/geos/operation/overlayng/PrecisionReducer.h

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/**********************************************************************
*
* GEOS - Geometry Engine Open Source
* http://geos.osgeo.org
*
* Copyright (C) 2020 Paul Ramsey <pramsey@cleverelephant.ca>
*
* 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 <vector>
#include <memory>
#include <map>
// Forward declarations
namespace geos {
namespace geom {
class PrecisionModel;
class Geometry;
}
namespace operation {
}
}
namespace geos { // geos.
namespace operation { // geos.operation
namespace overlayng { // geos.operation.overlayng
using namespace geos::geom;
/**
* Reduces the precision of a geometry by rounding it to the
* supplied {@link geom::PrecisionModel}.
*
* The output is always a valid geometry. This implies that input components
* may be merged if they are closer than the grid precision.
* if merging is not desired, then the individual geometry components
* should be processed separately.
*
* The output is fully noded.
* This provides an effective way to node / snap-round a collection of {@link geom::LineString}s.
*/
class GEOS_DLL PrecisionReducer {
private:
// Members
// Methods
public:
PrecisionReducer() {};
static std::unique_ptr<Geometry> reducePrecision(const Geometry* geom, const PrecisionModel* pm, bool replacePrecisionModel = false);
};
} // namespace geos.operation.overlayng
} // namespace geos.operation
} // namespace geos