CGAL 6.2 - 2D and 3D Linear Geometry Kernel: Kernel::CompareProjectionAlongDirection_3 Concept Reference

CGAL 6.2 - 2D and 3D Linear Geometry Kernel

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Kernel::CompareProjectionAlongDirection_3 Concept Reference
Reference Manual » Concepts » Kernel Function Object Concepts

## Definition

Refines
  `AdaptableTernaryFunction`

See also
  `CGAL::compare_projection_along_direction()`

## Operations
A model of this concept must provide:
Comparison_result | operator() (const Kernel::Point_3 &p, const Kernel::Point_3 &q, const Kernel::Direction_3 &dir)
| returns `CGAL::SMALLER`, `CGAL::EQUAL`, or `CGAL::LARGER` if the projection of `p` onto a line with direction `dir` precedes, coincides, or follows that of `q` in the direction pointed by `dir`.