\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.9 - 2D and 3D Linear Geometry Kernel
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Kernel::CompareAngleWithXAxis_2 Concept Reference
Kernel Function Object Concepts

Definition

Refines:
AdaptableFunctor (with two arguments)

Operations

A model of this concept must provide:

Comparison_result operator() (const Kernel::Direction_2 &d, const Kernel::Direction_2 &e)
 compares the angles between the positive \( x\)-axis and the directions in counterclockwise order.