DOLFIN
DOLFIN C++ interface
Public Member Functions | List of all members
dolfin::Edge Class Reference

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

#include <Edge.h>

Inheritance diagram for dolfin::Edge:
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Collaboration diagram for dolfin::Edge:
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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 Meshmesh () 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());

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