MeshData.h

Note

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

class MeshData

Parent class(es)

• Variable

The class MeshData is a container for auxiliary mesh data, represented either as arrays or maps. Each dataset is identified by a unique user-specified string. Only std::size_t-valued data are currently supported.

Auxiliary mesh data may be attached to a mesh by users as a convenient way to store data associated with a mesh. It is also used internally by DOLFIN to communicate data associated with meshes. The following named mesh data are recognized by DOLFIN:

Facet orientation (used for assembly over interior facets)

• “facet_orientation” - _std:vector_ <std::size_t> of dimension D - 1

Sub meshes (used by the class SubMesh)

• “parent_vertex_indices” - _std::vector_ <std::size_t> of dimension 0

Note to developers: use underscore in names in place of spaces.

MeshData()

Constructor

const MeshData& operator=(const MeshData& data)

Assignment operator

Arguments

data (MeshData)

Another MeshData object.

void clear()

Clear all data

bool exists(std::string name, std::size_t dim) const

Check is array exists

Arguments

name (std::string)

The name of the array.

Returns

bool

True is array exists, false otherwise.

std::vector<std::size_t>& create_array(std::string name, std::size_t dim)

Create array (vector) with given name and size

Arguments

name (std::string)

The name of the array.

size (std::size_t)

The size (length) of the array.

Returns

std::vector<std::size_t>

The array.

std::vector<std::size_t>& array(std::string name, std::size_t dim)

Return array with given name (returning zero if data is not available)

Arguments

name (std::string)

The name of the array.

Returns

std::vector<std::size_t>

The array.

const std::vector<std::size_t>& array(std::string name, std::size_t dim) const

Return array with given name (returning zero if data is not available)

Arguments

name (std::string)

The name of the array.

Returns

std::vector<std::size_t>

The array.

void erase_array(const std::string name, std::size_t dim)

Erase array with given name

Arguments

name (std::string)

The name of the array.

std::string str(bool verbose) const

Return informal string representation (pretty-print)

Arguments

verbose (bool)

Flag to turn on additional output.

Returns

std::string

An informal representation.