CGAL 5.3 - 3D Spherical Geometry Kernel
SphericalKernel::CompareThetaZ_3 Concept Reference

## Definition

SphericalKernel::CompareTheta_3
SphericalKernel::CompareX_3
SphericalKernel::CompareY_3
SphericalKernel::CompareZ_3
SphericalKernel::CompareXY_3
SphericalKernel::CompareXYZ_3
SphericalKernel::Equal_3

## Operations

An object of this type must provide:

Comparison_result operator() (const SphericalKernel::Circular_arc_point_3 &p, const SphericalKernel::Circular_arc_point_3 &q)
Compares p and q according to the lexicographic ordering on $$\theta$$- and $$z$$-coordinates in the cylindrical coordinate system relative to the context sphere used by the function SphericalKernel::compare_theta_z_3_object. More...

## ◆ operator()()

 Comparison_result SphericalKernel::CompareThetaZ_3::operator() ( const SphericalKernel::Circular_arc_point_3 & p, const SphericalKernel::Circular_arc_point_3 & q )

Compares p and q according to the lexicographic ordering on $$\theta$$- and $$z$$-coordinates in the cylindrical coordinate system relative to the context sphere used by the function SphericalKernel::compare_theta_z_3_object.

Precondition
p and q lie on the context sphere used by the function SphericalKernel::compare_theta_z_3_object, but do not coincide with its poles.