dolfin::RectangleMesh Class Reference

#include <RectangleMesh.h>

Inheritance diagram for dolfin::RectangleMesh:

Collaboration diagram for dolfin::RectangleMesh:

Public Member Functions
	RectangleMesh (const Point &p0, const Point &p1, std::size_t nx, std::size_t ny, std::string diagonal="right")
	RectangleMesh (MPI_Comm comm, const Point &p0, const Point &p1, std::size_t nx, std::size_t ny, std::string diagonal="right")
Public Member Functions inherited from dolfin::Mesh
	Mesh ()
	Create empty mesh.
	Mesh (MPI_Comm comm)
	Create empty mesh.
	Mesh (const Mesh &mesh)
	Mesh (std::string filename)
	Mesh (MPI_Comm comm, std::string filename)
	Mesh (MPI_Comm comm, LocalMeshData &local_mesh_data)
	~Mesh ()
	Destructor.
const Mesh &	operator= (const Mesh &mesh)
std::size_t	num_vertices () const
std::size_t	num_edges () const
std::size_t	num_faces () const
std::size_t	num_facets () const
std::size_t	num_cells () const
std::size_t	num_entities (std::size_t d) const
std::vector< double > &	coordinates ()
const std::vector< double > &	coordinates () const
const std::vector< unsigned int > &	cells () const
std::size_t	num_entities_global (std::size_t dim) const
MeshTopology &	topology ()
const MeshTopology &	topology () const
MeshGeometry &	geometry ()
const MeshGeometry &	geometry () const
MeshDomains &	domains ()
const MeshDomains &	domains () const
std::shared_ptr< BoundingBoxTree >	bounding_box_tree () const
MeshData &	data ()
const MeshData &	data () const
CellType &	type ()
const CellType &	type () const
	Get mesh cell type (const version).
std::size_t	init (std::size_t dim) const
void	init (std::size_t d0, std::size_t d1) const
void	init () const
	Compute all entities and connectivity.
void	init_global (std::size_t dim) const
	Compute global indices for entity dimension dim.
void	clean ()
void	order ()
bool	ordered () const
Mesh	renumber_by_color () const
void	scale (double factor)
void	translate (const Point &point)
void	rotate (double angle, std::size_t axis=2)
void	rotate (double angle, std::size_t axis, const Point &point)
void	smooth (std::size_t num_iterations=1)
void	smooth_boundary (std::size_t num_iterations=1, bool harmonic_smoothing=true)
void	snap_boundary (const SubDomain &sub_domain, bool harmonic_smoothing=true)
const std::vector< std::size_t > &	color (std::string coloring_type) const
const std::vector< std::size_t > &	color (std::vector< std::size_t > coloring_type) const
double	hmin () const
double	hmax () const
double	rmin () const
double	rmax () const
std::size_t	hash () const
std::string	str (bool verbose) const
const std::vector< int > &	cell_orientations () const
void	init_cell_orientations (const Expression &global_normal)
MPI_Comm	mpi_comm () const
std::string	ghost_mode () const
Public Member Functions inherited from dolfin::Variable
	Variable ()
	Create unnamed variable.
	Variable (const std::string name, const std::string label)
	Create variable with given name and label.
	Variable (const Variable &variable)
	Copy constructor.
virtual	~Variable ()
	Destructor.
const Variable &	operator= (const Variable &variable)
	Assignment operator.
void	rename (const std::string name, const std::string label)
	Rename variable.
std::string	name () const
	Return name.
std::string	label () const
	Return label (description).
std::size_t	id () const
Public Member Functions inherited from dolfin::Hierarchical< Mesh >
	Hierarchical (Mesh &self)
	Constructor.
virtual	~Hierarchical ()
	Destructor.
std::size_t	depth () const
bool	has_parent () const
bool	has_child () const
Mesh &	parent ()
std::shared_ptr< Mesh >	parent_shared_ptr ()
Mesh &	child ()
std::shared_ptr< Mesh >	child_shared_ptr ()
Mesh &	root_node ()
std::shared_ptr< Mesh >	root_node_shared_ptr ()
Mesh &	leaf_node ()
std::shared_ptr< Mesh >	leaf_node_shared_ptr ()
void	set_parent (std::shared_ptr< Mesh > parent)
	Set parent.
void	clear_child ()
	Clear child.
void	set_child (std::shared_ptr< Mesh > child)
	Set child.
const Hierarchical &	operator= (const Hierarchical &hierarchical)
	Assignment operator.
void	_debug () const
	Function useful for debugging the hierarchy.

Static Public Member Functions
static Mesh	create (const std::array< Point, 2 > &p, std::array< std::size_t, 2 > n, CellType::Type cell_type, std::string diagonal="right")
static Mesh	create (MPI_Comm comm, const std::array< Point, 2 > &p, std::array< std::size_t, 2 > n, CellType::Type cell_type, std::string diagonal="right")

Additional Inherited Members
Public Attributes inherited from dolfin::Variable
Parameters	parameters
	Parameters.

Detailed Description

Triangular mesh of the 2D rectangle spanned by two points p0 and p1. Given the number of cells (nx, ny) in each direction, the total number of triangles will be 2*nx*ny and the total number of vertices will be (nx + 1)*(ny + 1).

Constructor & Destructor Documentation

RectangleMesh() [1/2]

RectangleMesh::RectangleMesh	(	const Point &	p0,
		const Point &	p1,
		std::size_t	nx,
		std::size_t	ny,
		std::string	diagonal = "right" )

Parameters

p0	(Point) First point.
p1	(Point) Second point.
nx	(double) Number of cells in :math:x-direction.
ny	(double) Number of cells in :math:y-direction.
diagonal	(string) Direction of diagonals: "left", "right", "left/right", "crossed"

// Mesh with 8 cells in each direction on the
// set [-1,2] x [-1,2]
Point p0(-1, -1);
Point p1(2, 2);
RectangleMesh mesh(p0, p1, 8, 8);

RectangleMesh() [2/2]

RectangleMesh::RectangleMesh	(	MPI_Comm	comm,
		const Point &	p0,
		const Point &	p1,
		std::size_t	nx,
		std::size_t	ny,
		std::string	diagonal = "right" )

Parameters

comm	(MPI_Comm) MPI communicator
p0	(Point) First point.
p1	(Point) Second point.
nx	(double) Number of cells in :math:x-direction.
ny	(double) Number of cells in :math:y-direction.
diagonal	(string) Direction of diagonals: "left", "right", "left/right", "crossed"

// Mesh with 8 cells in each direction on the
// set [-1,2] x [-1,2]
Point p0(-1, -1);
Point p1(2, 2);
RectangleMesh mesh(MPI_COMM_WORLD, p0, p1, 8, 8);

Member Function Documentation

create() [1/2]

Mesh dolfin::RectangleMesh::create ( const std::array< Point, 2 > & p, std::array< std::size_t, 2 > n, CellType::Type cell_type, std::string diagonal = "right" )

inlinestatic

Parameters

p	(std::array<Point, 2>) Vertex points.
n	(std::array<std::size_t, 2>) Number of cells in each direction
cell_type	(dolfin::CellType::Type) Cell type
diagonal	(string) Direction of diagonals: "left", "right", "left/right", "crossed"

// Mesh with 8 cell edges in each direction on the
// set [-1,2] x [-1,2]
Point p0(-1, -1);
Point p1(2, 2);
auto Mesh = RectangleMesh::create({p0, p1}, {8, 8});

create() [2/2]

Mesh dolfin::RectangleMesh::create ( MPI_Comm comm, const std::array< Point, 2 > & p, std::array< std::size_t, 2 > n, CellType::Type cell_type, std::string diagonal = "right" )

inlinestatic

Parameters

comm	(MPI_Comm) MPI communicator
p	(std::array<Point, 2>) Vertex points.
n	(std::array<std::size_t, 2>) Number of cells in each direction
cell_type	(dolfin::CellType::Type) Cell type
diagonal	(string) Direction of diagonals: "left", "right", "left/right", "crossed"

// Mesh with 8 cells in each direction on the
// set [-1,2] x [-1,2]
Point p0(-1, -1);
Point p1(2, 2);
auto mesh = RectangleMesh::create(MPI_COMM_WORLD, {p0, p1}, {8, 8});

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

• /home/abuild/rpmbuild/BUILD/dolfin-documentation-2019.1.0.post0-build/dolfin-2019.1.0.post0/dolfin/generation/RectangleMesh.h
• /home/abuild/rpmbuild/BUILD/dolfin-documentation-2019.1.0.post0-build/dolfin-2019.1.0.post0/dolfin/generation/RectangleMesh.cpp