MeshConnectivity.h

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class MeshConnectivity

Mesh connectivity stores a sparse data structure of connections (incidence relations) between mesh entities for a fixed pair of topological dimensions.

The connectivity can be specified either by first giving the number of entities and the number of connections for each entity, which may either be equal for all entities or different, or by giving the entire (sparse) connectivity pattern.

MeshConnectivity(std::size_t d0, std::size_t d1)

Create empty connectivity between given dimensions (d0 – d1)

MeshConnectivity(const MeshConnectivity &connectivity)

Copy constructor

const MeshConnectivity &operator=(const MeshConnectivity &connectivity)

Assignment

bool empty() const

Return true if the total number of connections is equal to zero

std::size_t size() const

Return total number of connections

std::size_t size(std::size_t entity) const

Return number of connections for given entity

std::size_t size_global(std::size_t entity) const

Return global number of connections for given entity

const unsigned int *operator()(std::size_t entity) const

Return array of connections for given entity

const std::vector<unsigned int> &operator()() const

Return contiguous array of connections for all entities

void clear()

Clear all data

void init(std::size_t num_entities, std::size_t num_connections)

Initialize number of entities and number of connections (equal for all)

void init(std::vector<std::size_t> &num_connections)

Initialize number of entities and number of connections (individually)

void set(std::size_t entity, std::size_t connection, std::size_t pos)

Set given connection for given entity

void set(std::size_t entity, const T &connections)

Set all connections for given entity. T is a contains, e.g. std::vector<std::size_t>

void set(std::size_t entity, std::size_t *connections)

Set all connections for given entity

void set(const std::vector<T> &connections)

Set all connections for all entities (T is a container, e.g. a std::vector<std::size_t>, std::set<std::size_t>, etc)

void set_global_size(const std::vector<unsigned int> &num_global_connections)

Set global number of connections for all local entities

std::size_t hash() const

Hash of connections

std::string str(bool verbose) const

Return informal string representation (pretty-print)