78 lines
1.8 KiB
C++
78 lines
1.8 KiB
C++
/**********************************************************************
|
|
*
|
|
* GEOS - Geometry Engine Open Source
|
|
* http://geos.osgeo.org
|
|
*
|
|
* Copyright (c) 2024 Martin Davis
|
|
* Copyright (C) 2024 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/geom/GeometryFilter.h>
|
|
#include <geos/export.h>
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
// Forward declarations
|
|
namespace geos {
|
|
namespace geom {
|
|
class LineString;
|
|
class Geometry;
|
|
}
|
|
}
|
|
|
|
|
|
using geos::geom::LineString;
|
|
using geos::geom::Geometry;
|
|
using geos::geom::GeometryFilter;
|
|
|
|
|
|
namespace geos { // geos.
|
|
namespace operation { // geos.operation
|
|
namespace relateng { // geos.operation.relateng
|
|
|
|
|
|
class GEOS_DLL LineStringExtracter : public GeometryFilter {
|
|
|
|
private:
|
|
|
|
std::vector<const LineString*>& comps;
|
|
|
|
|
|
public:
|
|
|
|
LineStringExtracter(std::vector<const LineString*>& p_comps)
|
|
: comps(p_comps)
|
|
{}
|
|
|
|
void filter_ro(const geom::Geometry* geom) override;
|
|
|
|
static void getLines(const Geometry* geom, std::vector<const LineString*>& lines);
|
|
|
|
static std::vector<const LineString*> getLines(const Geometry* geom);
|
|
|
|
/**
|
|
* Extracts the {@link LineString} elements from a single {@link Geometry}
|
|
* and returns them as either a {@link LineString} or {@link MultiLineString}.
|
|
*
|
|
* @param geom the geometry from which to extract
|
|
* @return a linear geometry
|
|
*/
|
|
// static std::unique_ptr<Geometry> getGeometry(const Geometry* geom);
|
|
|
|
};
|
|
|
|
|
|
} // namespace geos.operation.relateng
|
|
} // namespace geos.operation
|
|
} // namespace geos
|
|
|