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 $cos(\theta_2) = cosine$. More...

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.