basix::cell Namespace Reference

Enumerations
enum class	type {   point , interval , triangle , tetrahedron ,   quadrilateral , hexahedron , prism , pyramid }
	Cell type.

Functions
Eigen::ArrayXXd	geometry (cell::type celltype)
std::vector< std::vector< std::vector< int > > >	topology (cell::type celltype)
Eigen::ArrayXXd	sub_entity_geometry (cell::type celltype, int dim, int index)
int	sub_entity_count (cell::type celltype, int dim)
int	topological_dimension (cell::type celltype)
cell::type	sub_entity_type (cell::type celltype, int dim, int index)
cell::type	str_to_type (std::string name)
const std::string &	type_to_str (cell::type type)
	Convert cell type enum to string.

Detailed Description

Information about reference cells including their topological and geometric data.

Function Documentation

geometry()

Eigen::ArrayXXd basix::cell::geometry

(

cell::type

celltype

)

Cell geometry

Parameters

celltype

Cell Type

Returns

Set of vertex points of the cell

str_to_type()

cell::type basix::cell::str_to_type

(

std::string

name

)

Convert a cell type string to enum

Parameters

name

String

Returns

cell type

sub_entity_count()

int basix::cell::sub_entity_count	(	cell::type	celltype,
		int	dim
	)

Number of sub-entities of a cell by topological dimension

Parameters

celltype	The cell::type
dim	Dimension of sub-entity

Returns

The number of sub-entities of the given dimension

sub_entity_geometry()

Eigen::ArrayXXd basix::cell::sub_entity_geometry	(	cell::type	celltype,
		int	dim,
		int	index
	)

Sub-entity of a cell, given by topological dimension and index

Parameters

celltype	The cell::type
dim	Dimension of sub-entity
index	Local index of sub-entity

Returns

Set of vertex points of the sub-entity

sub_entity_type()

cell::type basix::cell::sub_entity_type	(	cell::type	celltype,
		int	dim,
		int	index
	)

Get the cell type of a sub-entity of given dimension and index

Parameters

celltype	Type of cell
dim	Topological dimension of sub-entity
index	Index of sub-entity

Returns

cell type of sub-entity

topological_dimension()

int basix::cell::topological_dimension

(

cell::type

celltype

)

Get the topological dimension for a given cell type

Parameters

celltype

Cell type

Returns

the topological dimension

topology()

std::vector< std::vector< std::vector< int > > > basix::cell::topology

(

cell::type

celltype

)

Cell topology

Parameters

celltype

Cell Type

Returns

List of topology (vertex indices) for each dimension (0..tdim)