CGAL 6.1 - 3D Spherical Geometry Kernel

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SphericalKernel::CompareThetaZ_3 Concept Reference
Reference Manual » Geometric Concepts

## Definition

See also
  `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`.

## Member Function Documentation

## ◆ 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.