Template Numerical Library: TNL::Meshes::GridEntity< Grid, EntityDimension

Structure describing a grid entity i.e., grid cells, faces, edges, vertexes and so on. More...

#include <TNL/Meshes/GridEntity.h>

Collaboration diagram for TNL::Meshes::GridEntity< Grid, EntityDimension >:

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Public Types
using	CoordinatesType = typename Grid::CoordinatesType
	Type of grid entities coordinates.

using	DeviceType = typename Grid::DeviceType
	Device to be used for execution of operations with the grid.

using	GridType = Grid
	Type of grid the entity belongs to.

using	IndexType = typename Grid::IndexType
	Type for indexing of the grid entities.

using	PointType = typename Grid::PointType
	Type of world coordinates.

using	RealType = typename Grid::RealType
	Type of floating point numbers.

Public Member Functions
__cuda_callable__	GridEntity (const Grid &grid)
	Constructore with a grid reference.

__cuda_callable__	GridEntity (const Grid &grid, const CoordinatesType &coordinates)
	Constructor with a grid reference and grid entity coordinates.

__cuda_callable__	GridEntity (const Grid &grid, const CoordinatesType &coordinates, const CoordinatesType &normals)
	Constructor with a grid reference, grid entity coordinates and entity normals.

__cuda_callable__	GridEntity (const Grid &grid, const CoordinatesType &coordinates, const CoordinatesType &normals, IndexType orientation)
	Constructor with a grid reference, grid entity coordinates, entity normals and index of entity orientation.

__cuda_callable__	GridEntity (const Grid &grid, IndexType entityIdx)
	Constructor with a grid reference and grid entity index.

__cuda_callable__ CoordinatesType	getBasis () const
	Getter of the basis vector.

__cuda_callable__ PointType	getCenter () const
	Returns the center of the grid entity.

__cuda_callable__ CoordinatesType &	getCoordinates ()
	Getter of the grid entity coordinates for non-constant instances.

__cuda_callable__ const CoordinatesType &	getCoordinates () const
	Getter of the grid entity coordinates for constant instances.

__cuda_callable__ const Grid &	getGrid () const
	Returns a reference on the grid the grid entity belongs to.

__cuda_callable__ IndexType	getIndex () const
	Get the entity index in the grid.

__cuda_callable__ RealType	getMeasure () const
	Returns the measure (length, surface or volume) of the grid entity.

__cuda_callable__ const Grid &	getMesh () const
	Returns reference to the grid the grid entity belongs to.

template<int Dimension>
__cuda_callable__ GridEntity< Grid, Dimension >	getNeighbourEntity (const CoordinatesType &offset) const
	Returns the neighbour grid entity.

template<int Dimension, int Orientation>
__cuda_callable__ GridEntity< Grid, Dimension >	getNeighbourEntity (const CoordinatesType &offset) const
	Returns the neighbour grid entity.

__cuda_callable__ const CoordinatesType &	getNormals () const
	Returns the packed normals vector of the grid entity.

__cuda_callable__ IndexType	getOrientation () const
	Returns index of the entity orientation.

PointType	getPoint () const
	Returns the point at the origin of the grid entity.

__cuda_callable__ bool	isBoundary () const
	Tells, if the entity is boundary entity.

__cuda_callable__ void	refresh ()

__cuda_callable__ void	setCoordinates (const CoordinatesType &coordinates)
	Setter of the grid entity coordinates.

__cuda_callable__ void	setNormals (const CoordinatesType &normals)
	Setter for the packed normals vector of the grid entity.

__cuda_callable__ void	setOrientation (IndexType orientation)
	Setter of the grid entity orientation index.

Static Public Member Functions
static constexpr int	getEntityDimension ()
	Getter of the dimensions of the grid entity.

static constexpr int	getMeshDimension ()
	Getter of the dimension of the grid.

Protected Attributes
CoordinatesType	coordinates

const Grid &	grid

IndexType	index

CoordinatesType	normals

IndexType	orientation

Detailed Description

template<class Grid, int EntityDimension>
class TNL::Meshes::GridEntity< Grid, EntityDimension >

Structure describing a grid entity i.e., grid cells, faces, edges, vertexes and so on.

Template Parameters

Grid	is a typa of grid the entity belongs to.
EntityDimension	is a dimensions of the grid entity.

Constructor & Destructor Documentation

◆ GridEntity() [1/5]

template<class Grid , int EntityDimension>

__cuda_callable__ TNL::Meshes::GridEntity< Grid, EntityDimension >::GridEntity ( const Grid & grid )

Constructore with a grid reference.

Parameters

grid	is a reference on a grid the entity belongs to.

◆ GridEntity() [2/5]

template<class Grid , int EntityDimension>

__cuda_callable__ TNL::Meshes::GridEntity< Grid, EntityDimension >::GridEntity	(	const Grid &	grid,
		const CoordinatesType &	coordinates )

Constructor with a grid reference and grid entity coordinates.

Parameters

grid	is a reference on a grid the entity belongs to.
coordinates	are coordinates of the grid entity.

◆ GridEntity() [3/5]

template<class Grid , int EntityDimension>

__cuda_callable__ TNL::Meshes::GridEntity< Grid, EntityDimension >::GridEntity	(	const Grid &	grid,
		const CoordinatesType &	coordinates,
		const CoordinatesType &	normals )

Constructor with a grid reference, grid entity coordinates and entity normals.

Entity normals define the grid entity orientation.

Parameters

grid	is a reference on a grid the entity belongs to.
coordinates	are coordinates of the grid entity.
normals	is a vector of packed normal vectors to the grid entity.

◆ GridEntity() [4/5]

template<class Grid , int EntityDimension>

__cuda_callable__ TNL::Meshes::GridEntity< Grid, EntityDimension >::GridEntity	(	const Grid &	grid,
		const CoordinatesType &	coordinates,
		const CoordinatesType &	normals,
		IndexType	orientation )

Constructor with a grid reference, grid entity coordinates, entity normals and index of entity orientation.

Entity normals define the grid entity orientation. Index of entity orientation is rather internal information. Constructor without this parameter may be used preferably. The index can be computed using the method TNL::Meshes::Grid::getOrientation.

Parameters

grid	is a reference on a grid the entity belongs to.
coordinates	are coordinates of the grid entity.
normals	is a vector of packed normal vectors to the grid entity.
orientation	is an index of the grid entity orientation.

◆ GridEntity() [5/5]

template<class Grid , int EntityDimension>

__cuda_callable__ TNL::Meshes::GridEntity< Grid, EntityDimension >::GridEntity	(	const Grid &	grid,
		IndexType	entityIdx )

Constructor with a grid reference and grid entity index.

Parameters

grid	is a reference on a grid the entity belongs to.
entityIdx	is index of the grid entity.

Member Function Documentation

◆ getBasis()

template<class Grid , int EntityDimension>

__cuda_callable__ auto TNL::Meshes::GridEntity< Grid, EntityDimension >::getBasis ( ) const

Getter of the basis vector.

The basis vector has one for each axis along which the grid entity has non-zero length.

The basis vector is not stored explicitly in the grid entity and it is computed on the fly.

Returns: basis vector.

◆ getCenter()

template<class Grid , int EntityDimension>

__cuda_callable__ GridEntity< Grid, EntityDimension >::PointType TNL::Meshes::GridEntity< Grid, EntityDimension >::getCenter ( ) const

Returns the center of the grid entity.

Returns: the centre of the grid entity.

◆ getCoordinates() [1/2]

template<class Grid , int EntityDimension>

__cuda_callable__ GridEntity< Grid, EntityDimension >::CoordinatesType & TNL::Meshes::GridEntity< Grid, EntityDimension >::getCoordinates ( )

Getter of the grid entity coordinates for non-constant instances.

Returns: grid entity coordinates in a form of a reference.

◆ getCoordinates() [2/2]

template<class Grid , int EntityDimension>

__cuda_callable__ const GridEntity< Grid, EntityDimension >::CoordinatesType & TNL::Meshes::GridEntity< Grid, EntityDimension >::getCoordinates ( ) const

Getter of the grid entity coordinates for constant instances.

Returns: grid entity coordinates in a form of constant reference.

◆ getEntityDimension()

template<class Grid , int EntityDimension>

constexpr int TNL::Meshes::GridEntity< Grid, EntityDimension >::getEntityDimension ( )

staticconstexpr

Getter of the dimensions of the grid entity.

Returns: dimensions of the grid entity.

◆ getGrid()

template<class Grid , int EntityDimension>

__cuda_callable__ const Grid & TNL::Meshes::GridEntity< Grid, EntityDimension >::getGrid ( ) const

Returns a reference on the grid the grid entity belongs to.

Returns: a reference on the grid the grid entity belongs to.

◆ getIndex()

template<class Grid , int EntityDimension>

__cuda_callable__ GridEntity< Grid, EntityDimension >::IndexType TNL::Meshes::GridEntity< Grid, EntityDimension >::getIndex ( ) const

Get the entity index in the grid.

Returns: the grid entity index in the grid.

◆ getMeasure()

template<class Grid , int EntityDimension>

__cuda_callable__ GridEntity< Grid, EntityDimension >::RealType TNL::Meshes::GridEntity< Grid, EntityDimension >::getMeasure ( ) const

Returns the measure (length, surface or volume) of the grid entity.

Returns: the measure of the grid entity.

◆ getMesh()

template<class Grid , int EntityDimension>

__cuda_callable__ const Grid & TNL::Meshes::GridEntity< Grid, EntityDimension >::getMesh ( ) const

Returns reference to the grid the grid entity belongs to.

Returns: reference to the grid the grid entity belongs to.

◆ getMeshDimension()

template<class Grid , int EntityDimension>

constexpr int TNL::Meshes::GridEntity< Grid, EntityDimension >::getMeshDimension ( )

staticconstexpr

Getter of the dimension of the grid.

Returns: dimension of the grid.

◆ getNeighbourEntity() [1/2]

template<class Grid , int EntityDimension>

template<int Dimension>

__cuda_callable__ GridEntity< Grid, Dimension > TNL::Meshes::GridEntity< Grid, EntityDimension >::getNeighbourEntity ( const CoordinatesType & offset ) const

Returns the neighbour grid entity.

Template Parameters

Dimension is a dimension of the neighbour grid entity.

Parameters

offset is a offset of coordinates of the neighbour entity relative to this grid entity.

Warning: In case the parent entity orientation is greater than possible orientations of neighbour entity, then orientation is reduces. For example, 3-D cell neighbour of edge with orientaiton 1, will have orientation 0.

Returns: neighbour grid entity.

◆ getNeighbourEntity() [2/2]

template<class Grid , int EntityDimension>

template<int Dimension, int Orientation>

__cuda_callable__ GridEntity< Grid, Dimension > TNL::Meshes::GridEntity< Grid, EntityDimension >::getNeighbourEntity ( const CoordinatesType & offset ) const

Returns the neighbour grid entity.

Template Parameters

Dimension	is a dimension of the neighbour grid entity.
Orientation	is an orientatio index of the grid entity.

Parameters

offset is a offset of coordinates of the neighbour entity relative to this grid entity.

Returns: neighbour grid entity.

◆ getOrientation()

template<class Grid , int EntityDimension>

__cuda_callable__ GridEntity< Grid, EntityDimension >::IndexType TNL::Meshes::GridEntity< Grid, EntityDimension >::getOrientation ( ) const

Returns index of the entity orientation.

Orientation is always paired with the normals. In other words, if orientations, entity dimensions and dimensions are equal, then normals are equal also.

◆ getPoint()

template<class Grid , int EntityDimension>

auto TNL::Meshes::GridEntity< Grid, EntityDimension >::getPoint ( ) const

Returns the point at the origin of the grid entity.

Returns: the point at the origin of the grid entity.

◆ isBoundary()

template<class Grid , int EntityDimension>

__cuda_callable__ bool TNL::Meshes::GridEntity< Grid, EntityDimension >::isBoundary ( ) const

Tells, if the entity is boundary entity.

Returns: true if the entity is a boundary entity and false otherwise.

◆ setCoordinates()

template<class Grid , int EntityDimension>

__cuda_callable__ void TNL::Meshes::GridEntity< Grid, EntityDimension >::setCoordinates ( const CoordinatesType & coordinates )

Setter of the grid entity coordinates.

Parameters

coordinates are new coordinates of the grid entity.

◆ setNormals()

template<class Grid , int EntityDimension>

__cuda_callable__ void TNL::Meshes::GridEntity< Grid, EntityDimension >::setNormals ( const CoordinatesType & normals )

Setter for the packed normals vector of the grid entity.

This vector defines the orienation of the grid entity.

Parameters

normals is a vector of packed normal vectors to the grid entity.

◆ setOrientation()

template<class Grid , int EntityDimension>

__cuda_callable__ void TNL::Meshes::GridEntity< Grid, EntityDimension >::setOrientation ( IndexType orientation )

Setter of the grid entity orientation index.

This is rather internal information. The index can be computed using the method TNL::Meshes::Grid::getOrientation.

Parameters

orientation is a index of the grid entity orientation.

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

src/TNL/Meshes/Grid.h
src/TNL/Meshes/GridEntity.h
src/TNL/Meshes/GridEntity.hpp

Public Types

Public Member Functions

Static Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ GridEntity() [1/5]

◆ GridEntity() [2/5]

◆ GridEntity() [3/5]

◆ GridEntity() [4/5]

◆ GridEntity() [5/5]

Member Function Documentation

◆ getBasis()

◆ getCenter()

◆ getCoordinates() [1/2]

◆ getCoordinates() [2/2]

◆ getEntityDimension()

◆ getGrid()

◆ getIndex()

◆ getMeasure()

◆ getMesh()

◆ getMeshDimension()

◆ getNeighbourEntity() [1/2]

◆ getNeighbourEntity() [2/2]

◆ getOrientation()

◆ getPoint()

◆ isBoundary()

◆ setCoordinates()

◆ setNormals()

◆ setOrientation()