ArrTraits::CompareYAtXLeft_2 Concept Reference

Definition

Refines:

AdaptableTernaryFunction

Has Models:

ArrangementBasicTraits_2::Compare_y_at_x_left_2

Operations
A model of this concept must provide:
Comparison_result	operator() (ArrTraits::X_monotone_curve_2 xc1, ArrTraits::X_monotone_curve_2 xc2, ArrTraits::Point_2 p)
	accepts two \( x\)-monotone curves xc1 and xc2 that have a common right endpoint p, and returns SMALLER, EQUAL or LARGER according to the relative position of the two curves immediately to the left of \( p\). More...

Member Function Documentation

operator()()

Comparison_result ArrTraits::CompareYAtXLeft_2::operator()	(	ArrTraits::X_monotone_curve_2	xc1,
		ArrTraits::X_monotone_curve_2	xc2,
		ArrTraits::Point_2	p
	)

accepts two \( x\)-monotone curves xc1 and xc2 that have a common right endpoint p, and returns SMALLER, EQUAL or LARGER according to the relative position of the two curves immediately to the left of \( p\).

Note that in case one of the \( x\)-monotone curves is a vertical segment (emanating downward from p), it is always considered to be below the other curve.