CGAL::Multipolygon_with_holes_2< Kernel, Container > Class Template Reference

#include <CGAL/Multipolygon_with_holes_2.h>

Definition

template<class Kernel, class Container = std::vector<typename Kernel::Point_2>>
class CGAL::Multipolygon_with_holes_2< Kernel, Container >

The class Multipolygon_with_holes_2 models the concept MultipolygonWithHoles_2.

It is parameterized with two types (Kernel and Container) that are used to instantiate the types Polygon_2<Kernel,Container> and Polygon_with_holes_2<Kernel,Container>. The latter is used to represent each polygon with holes. The former is converted to the latter.

Is model of

MultipolygonWithHoles_2

Examples

Polygon/draw_multipolygon_with_holes.cpp, Polygon/multipolygon.cpp, and Stream_support/Polygon_WKT.cpp.

Public Types
using	Size = unsigned int
	the size type

Public Member Functions
	Multipolygon_with_holes_2 ()=default
	Default constructor.
template<typename PolygonsInputIterator >
	Multipolygon_with_holes_2 (PolygonsInputIterator p_begin, PolygonsInputIterator p_end)
	Constructor from polygons.

Related Functions
(Note that these are not member functions.)
template<class Kernel , class Container >
std::ostream &	operator<< (std::ostream &os, const Multipolygon_with_holes_2< Kernel, Container > &mp)
	inserts a multipolygon with holes to the output stream os.

Definition
using	Polygon_2 = CGAL::Polygon_2< Kernel, Container >
	polygon type
using	Polygon_with_holes_2 = CGAL::Polygon_with_holes_2< Kernel, Container >
	polygon with holes type

Friends And Related Function Documentation

operator<<()

template<class Kernel , class Container >

std::ostream & operator<< ( std::ostream &  os, const Multipolygon_with_holes_2< Kernel, Container > &  mp  )

related

inserts a multipolygon with holes to the output stream os.

An ASCII and a binary format exist. The format can be selected with the CGAL modifiers for streams, set_ascii_mode() and set_binary_mode(), respectively. The modifier set_pretty_mode() can be used to allow for (a few) structuring comments in the output. Otherwise, the output would be free of comments. The default for writing is ASCII without comments.

The number of polygons is written followed by the polygons. For each polygon, the number of points of the outer boundary is written followed by the points themselves in counterclockwise order. Then, the number of holes is written, and for each hole, the number of points on its outer boundary is written followed by the points themselves in clockwise order.