PolygonConvexDecomposition_2 Concept Reference

Definition

A model of the PolygonConvexDecomposition_2 concept is capable of decomposing an input polygon \( P\) into a set of convex sub-polygons \( P_1, \ldots, P_k\), such that \( \cup_{i=1}^{k}{P_k} = P\).

Has Models:

CGAL::Small_side_angle_bisector_decomposition_2<Kernel,Container>

CGAL::Optimal_convex_decomposition_2<Kernel,Container>

CGAL::Hertel_Mehlhorn_convex_decomposition_2<Kernel,Container>

CGAL::Greene_convex_decomposition_2<Kernel,Container>

CGAL::Polygon_nop_decomposition_2<Kernel,Container>

Types
typedef unspecified_type	Kernel
	the geometric kernel type.
typedef unspecified_type	Container
	the container of points type.
typedef unspecified_type	Point_2
	the point type, used to represent polygon vertices.
typedef unspecified_type	Polygon_2
	the polygon type, defined as Polygon_2<Kernel,Container>.

Creation
	PolygonConvexDecomposition_2 ()
	default constructor.

Operations
template<class OutputIterator >
OutputIterator	operator() (const Polygon_2 &P, OutputIterator oi) const
	decomposes the input polygon P into convex sub-polygons, and writes them to the output iterator oi.

Member Typedef Documentation

Container

typedef unspecified_type PolygonConvexDecomposition_2::Container

the container of points type.

By default it is std::vector<typename Kernel::Point_2>.

Member Function Documentation

operator()()

template<class OutputIterator >

OutputIterator PolygonConvexDecomposition_2::operator()	(	const Polygon_2 &	P,
		OutputIterator	oi
	)		const

decomposes the input polygon P into convex sub-polygons, and writes them to the output iterator oi.

The value-type of the output iterator must be Polygon_2. The function returns a past-the-end iterator for the convex sub-polygons.