dolfin::Edge Class Reference

An Edge is a MeshEntity of topological dimension 1. More...

#include <Edge.h>

Inheritance diagram for dolfin::Edge:

Collaboration diagram for dolfin::Edge:

Public Member Functions
	Edge (const Mesh &mesh, std::size_t index)
	Edge (MeshEntity &entity)
	~Edge ()
	Destructor.
double	length () const
double	dot (const Edge &edge) const
Public Member Functions inherited from dolfin::MeshEntity
	MeshEntity ()
	Default Constructor.
	MeshEntity (const Mesh &mesh, std::size_t dim, std::size_t index)
virtual	~MeshEntity ()
	Destructor.
void	init (const Mesh &mesh, std::size_t dim, std::size_t index)
bool	operator== (const MeshEntity &e) const
bool	operator!= (const MeshEntity &e) const
const Mesh &	mesh () const
std::size_t	dim () const
std::size_t	index () const
std::int64_t	global_index () const
std::size_t	num_entities (std::size_t dim) const
std::size_t	num_global_entities (std::size_t dim) const
const unsigned int *	entities (std::size_t dim) const
std::size_t	mesh_id () const
bool	incident (const MeshEntity &entity) const
std::size_t	index (const MeshEntity &entity) const
Point	midpoint () const
bool	is_ghost () const
std::set< unsigned int >	sharing_processes () const
bool	is_shared () const
unsigned int	owner () const
std::string	str (bool verbose) const

Additional Inherited Members
Protected Attributes inherited from dolfin::MeshEntity
Mesh const *	_mesh
std::size_t	_dim
std::size_t	_local_index

Detailed Description

An Edge is a MeshEntity of topological dimension 1.

Constructor & Destructor Documentation

Edge() [1/2]

dolfin::Edge::Edge ( const Mesh & mesh, std::size_t index )

inline

Create edge on given mesh

Parameters

mesh	(Mesh) The mesh.
index	(std::size_t) Index of the edge.

Edge() [2/2]

dolfin::Edge::Edge ( MeshEntity & entity )

inline

Create edge from mesh entity

Parameters

entity

(MeshEntity) The mesh entity to create an edge from.

Member Function Documentation

dot()

double Edge::dot

(

const Edge &

edge

)

const

Compute dot product between edge and other edge

Parameters

edge	(Edge) Another edge.

Returns

double The dot product.

UnitSquare mesh(2, 2);
Edge edge1(mesh, 0);
Edge edge2(mesh, 1);
info("%g", edge1.dot(edge2));

length()

double Edge::length

(

)

const

Compute Euclidean length of edge

Returns

double Euclidean length of edge.

UnitSquare mesh(2, 2);
Edge edge(mesh, 0);
info("%g", edge.length());

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

• /build/dolfin-wwk1CC/dolfin-2019.2.0~legacy20240219.1c52e83/dolfin/mesh/Edge.h
• /build/dolfin-wwk1CC/dolfin-2019.2.0~legacy20240219.1c52e83/dolfin/mesh/Edge.cpp