CGAL 4.12 - 3D Skin Surface Meshing
SkinSurface_3 Concept Reference

## Definition

The concept SkinSurface_3 defines a skin surface and provides an interface for the dedicated skin surface mesher. The concept requires a constructor from an iterator range of weighted points and a shrink factor. By default the input balls are grown in such that the skin surface wraps around the input balls.

Has Models:

CGAL::Skin_surface_3<SkinSurfaceTraits_3>

CGAL::Union_of_balls_3<SkinSurfaceTraits_3>

## Types

typedef unspecified_type Geometric_traits
The geometric traits used for the construction of the regular triangulation.

typedef Geometric_traits::Weighted_point_3 Weighted_point
The Weighted_point type.

typedef Geometric_traits::Point_3 Bare_point
The Bare_point type.

typedef unspecified_type FT
The FT type defined by the Geometric_traits. More...

## Creation

template<class WP_iterator >
Skin_surface_3 (WP_iterator begin, WP_iterator end, RT shrink_factor)
The mandatory arguments to the constructor are an iterator range [begin,end) of weighted points and a shrink factor between 0 and 1.

## Operations

template<class Polyhedron >
void mesh_skin_surface_3 (Polyhedron &p)
Constructs a coarse mesh in p. More...

template<class Polyhedron >
void subdivide_skin_surface_mesh_3 (Polyhedron &p, int nSubdiv=1)
Subdivides the skin surface using nSubdiv 1-4 split operations (each triangle is split into four sub-triangles) and the new vertices are moved towards the skin surface. More...

## ◆ FT

 typedef unspecified_type SkinSurface_3::FT

The FT type defined by the Geometric_traits.

This is the number type used by the weighted points.

## ◆ mesh_skin_surface_3()

template<class Polyhedron >
 void SkinSurface_3::mesh_skin_surface_3 ( Polyhedron & p )

Constructs a coarse mesh in p.

Template Parameters
 Polyhedron must be an instance of Polyhedron_3.
Precondition
Polyhedron::HDS can be used as the template argument of the CGAL::Polyhedron_incremental_builder_3<HDS>.

## ◆ subdivide_skin_surface_mesh_3()

template<class Polyhedron >
 void SkinSurface_3::subdivide_skin_surface_mesh_3 ( Polyhedron & p, int nSubdiv = 1 )

Subdivides the skin surface using nSubdiv 1-4 split operations (each triangle is split into four sub-triangles) and the new vertices are moved towards the skin surface.

Template Parameters
 Polyhedron must be an instance of Polyhedron_3.