CGAL 5.6 - 2D and 3D Linear Geometry Kernel
Kernel::CompareAngleWithXAxis_2 Concept Reference

Definition

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.