CGAL 4.7 - 3D Surface Subdivision Methods: CGAL::Sqrt3_mask_3< Polyhedron_3 > Class Template Reference

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CGAL 4.7 - 3D Surface Subdivision Methods

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CGAL::Sqrt3_mask_3< Polyhedron_3 > Class Template Reference
3D Surface Subdivision Methods

`#include <CGAL/Subdivision_mask_3.h>`

## Definition

A stencil determines a source neighborhood whose points contribute to the position of a refined point.

The geometry mask of a stencil specifies the computation on the nodes of the stencil. `Sqrt3_mask_3` implements the geometry masks of \( \sqrt{3}\) subdivision on a triangulated `CGAL::Polyhedron_3<Cartesian>`.

Template Parameters

  Polyhedron_3 | must be a `CGAL::Polyhedron_3` instantiated with a Cartesian kernel, which defines the `Point_3` for the vertices.

Is Model Of:
  `Sqrt3Mask_3`

See Also
  `CGAL::Subdivision_method_3`

## Creation

| Sqrt3_mask_3 ()
| default constructor.

## Stencil functions

void | facet_node (Facet_handle f, Point_3 &pt)
| computes the \( \sqrt{3}\) facet-point `pt` of the facet `f`.
void | vertex_node (Vertex_handle v, Point &pt)
| computes the \( \sqrt{3}\) vertex-point `pt` of the vertex `v`.