GEO::Cavity Class Reference

Represents the set of tetrahedra on the boundary of the cavity in a 3D Delaunay triangulation. More...

#include <geogram/delaunay/cavity.h>

Public Types
typedef Numeric::uint8	local_index_t
	Type used for local indices.

Public Member Functions
	Cavity ()
	Cavity constructor.
void	clear ()
	Clears this cavity.
bool	OK () const
	Tests whether this Cavity is valid. More...
void	new_facet (index_t tglobal, index_t boundary_f, signed_index_t v0, signed_index_t v1, signed_index_t v2)
	Inserts a new boundary facet in the structure. More...
index_t	nb_facets () const
	Gets the number of facets. More...
index_t	facet_tet (index_t f) const
	Gets the tetrahedron associated with a facet. More...
void	set_facet_tet (index_t f, index_t t)
	Sets the tetrahedron associated with a facet. More...
index_t	facet_facet (index_t f) const
	Gets the local tetrahedron facet that corresponds to a facet. More...
signed_index_t	facet_vertex (index_t f, index_t lv) const
	Gets the vertex of a facet. More...
void	get_facet_neighbor_tets (index_t f, index_t &t0, index_t &t1, index_t &t2) const
	Gets the neighbors of a facet. More...

Detailed Description

Represents the set of tetrahedra on the boundary of the cavity in a 3D Delaunay triangulation.

Definition at line 69 of file cavity.h.

Member Function Documentation

facet_facet()

index_t GEO::Cavity::facet_facet ( index_t  f ) const

inline

Gets the local tetrahedron facet that corresponds to a facet.

Parameters

[in]

f

the facet.

Returns

the local index of the tetrahedron facet associated with f, in 0..3

Definition at line 194 of file cavity.h.

facet_tet()

index_t GEO::Cavity::facet_tet ( index_t  f ) const

inline

Gets the tetrahedron associated with a facet.

Parameters

[in]

f

the facet

Returns

the tetrahedron associated with f.

Definition at line 172 of file cavity.h.

facet_vertex()

signed_index_t GEO::Cavity::facet_vertex ( index_t  f, index_t  lv  ) const

inline

Gets the vertex of a facet.

Parameters

[in]	f	a facet.
[in]	lv	local index of the vertex, in 0..2.

Returns

the global vertex index.

Definition at line 205 of file cavity.h.

get_facet_neighbor_tets()

void GEO::Cavity::get_facet_neighbor_tets ( index_t  f, index_t &  t0, index_t &  t1, index_t &  t2  ) const

inline

Gets the neighbors of a facet.

Parameters

[in]	f	a facet
[out]	t0,t1,t2	the global tetrahedron indices that correspond to the neighbors of f.

Definition at line 217 of file cavity.h.

nb_facets()

index_t GEO::Cavity::nb_facets ( ) const

inline

Gets the number of facets.

Returns

the number of facets.

Definition at line 163 of file cavity.h.

new_facet()

void GEO::Cavity::new_facet ( index_t  tglobal, index_t  boundary_f, signed_index_t  v0, signed_index_t  v1, signed_index_t  v2  )

inline

Inserts a new boundary facet in the structure.

Parameters

[in]	tglobal	global tetrahedron index
[in]	boundary_f	index of the facet that is on the boundary
[in]	v0,v1,v2	the three vertices of the facet that is on the boundary

Definition at line 124 of file cavity.h.

OK()

bool GEO::Cavity::OK ( ) const

inline

Tests whether this Cavity is valid.

Return values

true	if this Cavity is valid.
false	otherwise. A Cavity is not valid when there was overflow.

Definition at line 113 of file cavity.h.

set_facet_tet()

void GEO::Cavity::set_facet_tet ( index_t  f, index_t  t  )

inline

Sets the tetrahedron associated with a facet.

Parameters

[in]	f	the facet.
[in]	t	the tetrahedron to be associated with f.

Definition at line 182 of file cavity.h.

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The documentation for this class was generated from the following file:

• geogram/delaunay/cavity.h