MeshGeometry.h¶

Note

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

class MeshGeometry¶

MeshGeometry stores the geometry imposed on a mesh. Currently, the geometry is represented by the set of coordinates for the vertices of a mesh, but other representations are possible.

MeshGeometry()¶: Create empty set of coordinates

MeshGeometry(const MeshGeometry &geometry)¶: Copy constructor

const MeshGeometry &operator=(const MeshGeometry &geometry)¶: Assignment

std::size_t dim() const¶: Return Euclidean dimension of coordinate system

std::size_t degree() const¶: Return polynomial degree of coordinate field

std::size_t num_vertices() const¶: Return the number of vertex coordinates

std::size_t num_points() const¶: Return the total number of points in the geometry, located on any entity

const double *vertex_coordinates(std::size_t point_index)¶: Get vertex coordinates

const double *point_coordinates(std::size_t point_index)¶: Get vertex coordinates

double x(std::size_t n, std::size_t i) const¶: Return value of coordinate with local index n in direction i

const double *x(std::size_t n) const¶: Return array of values for coordinate with local index n

std::vector<double> &x()¶: Return array of values for all coordinates

const std::vector<double> &x() const¶: Return array of values for all coordinates

Point point(std::size_t n) const¶: Return coordinate with local index n as a 3D point value

void init(std::size_t dim, std::size_t degree)¶: Initialize coordinate list to given dimension and degree

void init_entities(const std::vector<std::size_t> &num_entities)¶: Initialise entities. To be called after init

std::size_t num_entity_coordinates(std::size_t entity_dim) const¶: Get the number of coordinate points per entity for this degree

std::size_t get_entity_index(std::size_t entity_dim, std::size_t order, std::size_t index) const¶: Get the index for an entity point in coordinates

void set(std::size_t local_index, const double *x)¶: Set value of coordinate

std::size_t hash() const¶

Hash of coordinate values

Returns

std::size_t: A tree-hashed value of the coordinates over all MPI processes

std::string str(bool verbose) const¶: Return informal string representation (pretty-print)