HeuristicOverlay.h
/**********************************************************************
*
* GEOS - Geometry Engine Open Source
* http://geos.osgeo.org
*
* Copyright (C) 2013-2020 Sandro Santilli <strk@kbt.io>
* 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.
*
**********************************************************************
*
* Last port: ORIGINAL WORK
*
**********************************************************************/
#pragma once
#include <geos/export.h>
#include <geos/geom/Geometry.h>
#include <geos/geom/Dimension.h>
#include <memory> // for unique_ptr
#include <vector>
namespace geos {
namespace geom {
class Geometry;
class GeometryFactory;
}
}
namespace geos {
namespace geom { // geos::geom
std::unique_ptr<Geometry> GEOS_DLL
HeuristicOverlay(const Geometry* g0, const Geometry* g1, int opCode);
class StructuredCollection {
public:
static std::unique_ptr<Geometry> overlay(const Geometry* g0, const Geometry* g1, int opCode);
private:
const GeometryFactory* factory;
std::vector<const Geometry*> pts;
std::vector<const Geometry*> lines;
std::vector<const Geometry*> polys;
std::unique_ptr<Geometry> pt_union;
std::unique_ptr<Geometry> line_union;
std::unique_ptr<Geometry> poly_union;
Dimension::DimensionType dimension;
StructuredCollection(const Geometry* g)
: factory(g->getFactory())
, pt_union(nullptr)
, line_union(nullptr)
, poly_union(nullptr)
, dimension(Dimension::DONTCARE)
{
readCollection(g);
unionByDimension();
};
StructuredCollection()
: factory(nullptr)
, pt_union(nullptr)
, line_union(nullptr)
, poly_union(nullptr)
, dimension(Dimension::DONTCARE)
{};
Dimension::DimensionType getDimension() const
{
return dimension;
};
void addDimension(Dimension::DimensionType dim);
std::unique_ptr<Geometry> doUnaryUnion(int resultDim) const;
std::unique_ptr<Geometry> computeResult(StructuredCollection& coll, int opCode,
Dimension::DimensionType dimA, Dimension::DimensionType dimB) const;
void readCollection(const Geometry* g);
const Geometry* getPolyUnion() const { return poly_union.get(); }
const Geometry* getLineUnion() const { return line_union.get(); }
const Geometry* getPointUnion() const { return pt_union.get(); }
std::unique_ptr<Geometry> doUnion(const StructuredCollection& a) const;
std::unique_ptr<Geometry> doIntersection(const StructuredCollection& a) const;
std::unique_ptr<Geometry> doSymDifference(const StructuredCollection& a) const;
std::unique_ptr<Geometry> doDifference(const StructuredCollection& a) const;
static void toVector(const Geometry* g, std::vector<const Geometry*>& v);
void unionByDimension(void);
};
} // namespace geos::geom
} // namespace geos
geos::geom::Dimension::DimensionType
DimensionType
Definition Dimension.h:29
geos::geom::GeometryFactory
Supplies a set of utility methods for building Geometry objects from CoordinateSequence or other Geom...
Definition GeometryFactory.h:70
geos::geom::Geometry
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition Geometry.h:196
geos::geom
Definition Angle.h:26
geos
Basic namespace for all GEOS functionalities.
Definition geos.h:38