CGAL::Arr_polycurve_traits_2< SubcurveTraits_2 >::Push_front_2 Class Reference

#include <CGAL/Arr_polycurve_traits_2.h>

Definition

Functor to augment a polycurve by either adding a vertex or a subcurve at the front.

Operations
void	operator() (Curve_2 &cv, const Subcurve_2 &subcurve) const
	Append a subcurve subcurve to an existing polycurve cv at the front. More...
void	operator() (X_monotone_curve_2 &xcv, const X_monotone_subcurve_2 &subcurve) const
	Append a subcurve subcurve to an existing \(x\)-monotone polycurve xcv at the front. More...

Member Function Documentation

operator()() [1/2]

template<typename SubcurveTraits_2>

void CGAL::Arr_polycurve_traits_2< SubcurveTraits_2 >::Push_front_2::operator()	(	Curve_2 &	cv,
		const Subcurve_2 &	subcurve
	)		const

Append a subcurve subcurve to an existing polycurve cv at the front.

If cv is empty, subcurve will be its first subcurve.

Parameters

cv	a polycurve. Note, cv is (not necessarily) \(x\)-monotone.
subcurve	a subcurve (not necessarily \(x\)-monotone) to be appended to cv

operator()() [2/2]

template<typename SubcurveTraits_2>

void CGAL::Arr_polycurve_traits_2< SubcurveTraits_2 >::Push_front_2::operator()	(	X_monotone_curve_2 &	xcv,
		const X_monotone_subcurve_2 &	subcurve
	)		const

Append a subcurve subcurve to an existing \(x\)-monotone polycurve xcv at the front.

If xcv is empty, subcurve will be its first subcurve.

Parameters

xcv	existing \(x\)-monotone polycurve
subcurve	the subcurve to be added

Precondition

If xcv is not empty then subcurve extends xcv to the left if xcv is oriented right-to-left. Otherwise, subcurve extends xcv to the right.

subcurve is not degenerated.

xcv and subcurve should have the same orientation