CGAL::Arr_polyline_traits_2< SegmentTraits_2 >::Push_back_2 Class Reference

#include <CGAL/Arr_polyline_traits_2.h>

Definition

Functor to augment a polyline by either adding a vertex or a segment at the back.

Operations
void	operator() (Curve_2 &cv, const Point_2 &p) const
	Append a point p to an existing polyline cv at the back. More...
void	operator() (Curve_2 &cv, const Segment_2 &seg) const
	Append a segment seg to an existing polyline cv at the back. More...
void	operator() (const X_monotone_curve_2 &xcv, Point_2 &p) const
	Append a point p to an existing \(x\)-monotone polyline xcv at the back. More...
void	operator() (const X_monotone_curve_2 &xcv, Segment_2 &seg) const
	Append a segment seg to an existing \(x\)-monotone polyline xcv at the back. More...

Member Function Documentation

operator()() [1/4]

template<typename SegmentTraits_2 >

void CGAL::Arr_polyline_traits_2< SegmentTraits_2 >::Push_back_2::operator()	(	Curve_2 &	cv,
		const Point_2 &	p
	)		const

Append a point p to an existing polyline cv at the back.

Parameters

cv	a polyline. Note, cv is not (necessarily) \( x\)-monotone.
p	a point to be appended to cv at the back.

Precondition

cv contains at least one segment.

operator()() [2/4]

template<typename SegmentTraits_2 >

void CGAL::Arr_polyline_traits_2< SegmentTraits_2 >::Push_back_2::operator()	(	Curve_2 &	cv,
		const Segment_2 &	seg
	)		const

Append a segment seg to an existing polyline cv at the back.

If cv is empty, seg will be its first segment.

Parameters

cv	a polyline. Note, cv is (not necessarily) \(x\)-monotone.
seg	a segment (not necessarily \(x\)-monotone) to be appended to cv

operator()() [3/4]

template<typename SegmentTraits_2 >

void CGAL::Arr_polyline_traits_2< SegmentTraits_2 >::Push_back_2::operator()	(	const X_monotone_curve_2 &	xcv,
		Point_2 &	p
	)		const

Append a point p to an existing \(x\)-monotone polyline xcv at the back.

Parameters

xcv	the existing \(x\)-monotone polyline
p	the point to be pushed back.

Precondition

xcv contains at least one segment

p is either to the right of xcv if it is oriented left-to-right or it is to its left if xcv is oriented right-to-left.

operator()() [4/4]

template<typename SegmentTraits_2 >

void CGAL::Arr_polyline_traits_2< SegmentTraits_2 >::Push_back_2::operator()	(	const X_monotone_curve_2 &	xcv,
		Segment_2 &	seg
	)		const

Append a segment seg to an existing \(x\)-monotone polyline xcv at the back.

If xcv is empty, seg will be its first segment.

Parameters

xcv	existing \(x\)-monotone polyline
seg	the segment to be added

Precondition

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

seg is not degenerated.

xcv and seg should have the same orientation