Kernel::CompareAngle_3 Concept Reference

Definition

Operations
A model of this concept must provide:
Comparison_result	operator() (const K::Point_3 &a, const K::Point_3 &b, const K::Point_3 &c, const K::FT &cosine)
	compares the angles \( \theta_1\) and \( \theta_2\), where \( \theta_1\) is the angle in \( [0, \pi]\) of the triangle \( (a, b, c)\) at the vertex b, and \( \theta_2\) is the angle in \( [0, \pi]\) such that \( cos(\theta_2) = cosine\).

Member Function Documentation

operator()()

Comparison_result Kernel::CompareAngle_3::operator()	(	const K::Point_3 &	a,
		const K::Point_3 &	b,
		const K::Point_3 &	c,
		const K::FT &	cosine
	)

compares the angles \( \theta_1\) and \( \theta_2\), where \( \theta_1\) is the angle in \( [0, \pi]\) of the triangle \( (a, b, c)\) at the vertex b, and \( \theta_2\) is the angle in \( [0, \pi]\) such that \( cos(\theta_2) = cosine\).

Precondition

a!=b && c!=b.