You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
1 month ago
|
/**********************************************************************
|
||
|
|
*
|
||
|
|
* GEOS - Geometry Engine Open Source
|
||
|
|
* http://geos.osgeo.org
|
||
|
|
*
|
||
|
|
* Copyright (C) 2019 Daniel Baston <dbaston@gmail.com>
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
#ifndef GEOS_OP_UNION_COVERAGEUNION_H
|
||
|
|
#define GEOS_OP_UNION_COVERAGEUNION_H
|
||
|
|
|
||
|
|
#include <geos/geom/LineSegment.h>
|
||
|
|
#include <geos/geom/Geometry.h>
|
||
|
|
|
||
|
|
#include <memory>
|
||
|
|
#include <unordered_set>
|
||
|
|
|
||
|
|
namespace geos {
|
||
|
|
namespace geom {
|
||
|
|
class Polygon;
|
||
|
|
class LineString;
|
||
|
|
class GeometryFactory;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
namespace geos {
|
||
|
|
namespace operation {
|
||
|
|
namespace geounion {
|
||
|
|
|
||
|
|
class GEOS_DLL CoverageUnion {
|
||
|
|
public:
|
||
|
|
static std::unique_ptr<geom::Geometry> Union(const geom::Geometry* geom);
|
||
|
|
|
||
|
|
private:
|
||
|
|
CoverageUnion() = default;
|
||
|
|
|
||
|
|
void extractSegments(const geom::Polygon* geom);
|
||
|
|
void extractSegments(const geom::Geometry* geom);
|
||
|
|
void extractSegments(const geom::LineString* geom);
|
||
|
|
|
||
|
|
std::unique_ptr<geom::Geometry> polygonize(const geom::GeometryFactory* gf);
|
||
|
|
std::unordered_set<geos::geom::LineSegment, geos::geom::LineSegment::HashCode> segments;
|
||
|
|
static constexpr double AREA_PCT_DIFF_TOL = 1e-6;
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|