CGAL 5.1 - 3D Alpha Shapes
AlphaShapeTraits_3 Class Reference

#include <Concepts/AlphaShapeTraits_3.h>

Definition

The concept AlphaShapeTraits_3 describes the requirements for the geometric traits class of the underlying Delaunay triangulation of a basic alpha shape.

Refines:
DelaunayTriangulationTraits_3

In addition to the requirements described in the concept DelaunayTriangulationTraits_3, the geometric traits class of a Delaunay triangulation plugged in a basic alpha shapes provides the following.

Has Models:
All models of Kernel.
See also
CGAL::Exact_predicates_inexact_constructions_kernel (recommended kernel)

Types

typedef unspecified_type FT
 A number type compatible with the type used for the points coordinate. More...
 
typedef unspecified_type Compute_squared_radius_3
 An object constructor able to compute: More...
 

Creation

 AlphaShapeTraits_3 ()
 Default constructor. More...
 

Access Functions

Compute_squared_radius_3 compute_squared_radius_3_object ()
 

Member Typedef Documentation

◆ Compute_squared_radius_3

An object constructor able to compute:

  • the squared radius of the smallest circumscribing sphere of 4 points p0, p1, p2, p3,
  • the squared radius of the smallest circumscribing sphere of 3 points p0, p1, p2,
  • the squared radius of the smallest circumscribing sphere of 2 points p0, p1,
  • the squared radius of the smallest circumscribing sphere to a single point p0 (which is FT(0)).

◆ FT

typedef unspecified_type AlphaShapeTraits_3::FT

A number type compatible with the type used for the points coordinate.

Constructor & Destructor Documentation

◆ AlphaShapeTraits_3()

AlphaShapeTraits_3::AlphaShapeTraits_3 ( )

Default constructor.

Member Function Documentation

◆ compute_squared_radius_3_object()

Compute_squared_radius_3 AlphaShapeTraits_3::compute_squared_radius_3_object ( )