Polygon.h

Go to the documentation of this file.

// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <list>
#include <vector>
 
#include "AABB.h"
#include "Point.h"
#include "Polyline.h"
 
namespace GeoLib
{
class Polygon : public Polyline
{
public:
    explicit Polygon(const Polyline& ply, bool init = true);
 
    Polygon(Polygon const& other);
    Polygon& operator=(Polygon const& rhs) = delete;
 
    ~Polygon() override;
 
    bool initialise();

    bool isPntInPolygon(MathLib::Point3d const& pnt) const;

    bool containsSegment(GeoLib::LineSegment const& segment) const;

    bool isPolylineInPolygon(const Polyline& ply) const;
    bool isPartOfPolylineInPolygon(const Polyline& ply) const;

    bool getNextIntersectionPointPolygonLine(GeoLib::LineSegment const& seg,
                                             GeoLib::Point& intersection_pnt,
                                             std::size_t& seg_num) const;

    std::list<Polygon*> const& computeListOfSimplePolygons();
 
    friend bool operator==(Polygon const& lhs, Polygon const& rhs);
 
private:
    void ensureCCWOrientation();
 
    void splitPolygonAtIntersection(
        const std::list<Polygon*>::const_iterator& polygon_it);
 
    void splitPolygonAtPoint(const std::list<Polygon*>::iterator& polygon_it);
    std::list<Polygon*> _simple_polygon_list;
    AABB _aabb;
};

bool operator==(Polygon const& lhs, Polygon const& rhs);
 
}  // end namespace GeoLib