\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.8 - 3D Surface Subdivision Methods

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Sqrt3Mask_3 Concept Reference
Concepts

## Definition

Required member functions for the `Sqrt3Mask_3` concept. This policy concept of geometric computations is used in `CGAL::Subdivision_method_3::Sqrt3<Polyhedron_3, Mask>`.

Has Models:
  `CGAL::Sqrt3_mask_3<Polyhedron_3>`

See Also
  `CGAL::Subdivision_method_3`

## Operations
void | facet_node (Facet_handle f, Point_3 &pt)
| computes the subdivided point `pt` based on the neighborhood of the facet `f`.
void | vertex_node (Vertex_handle v, Point &pt)
| computes the subdivided point `pt` based on the neighborhood of the vertex `v`.