Provides a meta grid that is identical to its host. More...

#include <dune/grid/identitygrid.hh>

Public Types
typedef HostGrid	HostGridType

typedef IdentityGridFamily< HostGrid::dimension, HostGrid >	GridFamily
	type of the used GridFamily for this grid

typedef IdentityGridFamily< HostGrid::dimension, HostGrid >::Traits	Traits
	the Traits

typedef HostGrid::ctype	ctype
	The type used to store coordinates, inherited from the HostGrid.

Exported types
typedef GridFamily::Traits::LeafGridView	LeafGridView
	type of view for leaf grid

typedef GridFamily::Traits::LevelGridView	LevelGridView
	type of view for level grid

typedef GridFamily::Traits::LeafIntersection	LeafIntersection
	A type that is a model of Dune::Intersection, an intersections of two codimension 1 of two codimension 0 entities in the leaf view.

typedef GridFamily::Traits::LevelIntersection	LevelIntersection
	A type that is a model of Dune::Intersection, an intersections of two codimension 1 of two codimension 0 entities in a level view.

typedef GridFamily::Traits::LeafIntersectionIterator	LeafIntersectionIterator
	A type that is a model of Dune::IntersectionIterator which is an iterator that allows to examine, but not to modify, the intersections of codimension 1 of an leaf element (entity of codimension 0) with other leaf elements.

typedef GridFamily::Traits::LevelIntersectionIterator	LevelIntersectionIterator
	A type that is a model of Dune::IntersectionIterator which is an iterator that allows to examine, but not to modify, the intersections of codimension 1 of an element (entity of codimension 0) with other elements on the same level.

typedef GridFamily::Traits::HierarchicIterator	HierarchicIterator
	A type that is a model of Dune::HierarchicIterator A type of iterator that allows to examine, but not to modify, entities of codimension 0 that result from refinement of an entity of codimension 0.

typedef GridFamily::Traits::LevelIndexSet	LevelIndexSet
	A type that is a model of Dune::IndexSet which provides a consecutive, but non persistent, numbering for entities on a grid level.

typedef GridFamily::Traits::LeafIndexSet	LeafIndexSet
	A type that is a model of Dune::IndexSet which provides a consecutive, but non persistent, numbering for entities in the leaf grid.

typedef GridFamily::Traits::GlobalIdSet	GlobalIdSet
	A type that is a model of Dune::IdSet which provides a unique and persistent numbering for all entities in the grid. The numbering is unique over all processes over which the grid is partitioned. The numbering is not necessarily consecutive.

typedef GridFamily::Traits::LocalIdSet	LocalIdSet
	A type that is a model of Dune::IdSet which provides a unique and persistent numbering for all entities in the grid. The numbering is only unique in a single process and it is not necessarily consecutive.

using	Communication = typename GridFamily::Traits::Communication
	A type that is a model of Dune::Communication. It provides a portable way for communication on the set of processes used by the grid.

Public Member Functions
	IdentityGrid (HostGrid &hostgrid)
	Constructor. More...

	~IdentityGrid ()
	Destructor.

int	maxLevel () const
	Return maximum level defined in this grid. More...

template<int codim>
Traits::template Codim< codim >::LevelIterator	lbegin (int level) const
	Iterator to first entity of given codim on level.

template<int codim>
Traits::template Codim< codim >::LevelIterator	lend (int level) const
	one past the end on this level

template<int codim, PartitionIteratorType PiType>
Traits::template Codim< codim >::template Partition< PiType >::LevelIterator	lbegin (int level) const
	Iterator to first entity of given codim on level.

template<int codim, PartitionIteratorType PiType>
Traits::template Codim< codim >::template Partition< PiType >::LevelIterator	lend (int level) const
	one past the end on this level

template<int codim>
Traits::template Codim< codim >::LeafIterator	leafbegin () const
	Iterator to first leaf entity of given codim.

template<int codim>
Traits::template Codim< codim >::LeafIterator	leafend () const
	one past the end of the sequence of leaf entities

template<int codim, PartitionIteratorType PiType>
Traits::template Codim< codim >::template Partition< PiType >::LeafIterator	leafbegin () const
	Iterator to first leaf entity of given codim.

template<int codim, PartitionIteratorType PiType>
Traits::template Codim< codim >::template Partition< PiType >::LeafIterator	leafend () const
	one past the end of the sequence of leaf entities

int	size (int level, int codim) const
	Number of grid entities per level and codim.

size_t	numBoundarySegments () const
	returns the number of boundary segments within the macro grid

int	size (int codim) const
	number of leaf entities per codim in this process

int	size (int level, GeometryType type) const
	number of entities per level, codim and geometry type in this process

int	size (GeometryType type) const
	number of leaf entities per codim and geometry type in this process

const Traits::GlobalIdSet &	globalIdSet () const
	Access to the GlobalIdSet.

const Traits::LocalIdSet &	localIdSet () const
	Access to the LocalIdSet.

const Traits::LevelIndexSet &	levelIndexSet (int level) const
	Access to the LevelIndexSets.

const Traits::LeafIndexSet &	leafIndexSet () const
	Access to the LeafIndexSet.

template<class EntitySeed >
Traits::template Codim< EntitySeed::codimension >::Entity	entity (const EntitySeed &seed) const
	Create Entity from EntitySeed.

Traits::LevelGridView	levelGridView (int level) const
	View for a grid level for All_Partition.

Traits::LeafGridView	leafGridView () const
	View for the leaf grid for All_Partition.

Traits::LeafIntersectionIterator	ileafbegin (const typename Traits::template Codim< 0 >::Entity &entity) const
	obtain begin intersection iterator on the leaf level

Traits::LeafIntersectionIterator	ileafend (const typename Traits::template Codim< 0 >::Entity &entity) const
	obtain end intersection iterator on the leaf level

Traits::LevelIntersectionIterator	ilevelbegin (const typename Traits::template Codim< 0 >::Entity &entity) const
	obtain begin intersection iterator on the entity level

Traits::LevelIntersectionIterator	ilevelend (const typename Traits::template Codim< 0 >::Entity &entity) const
	obtain end intersection iterator on the entity level

bool	mark (int refCount, const typename Traits ::template Codim< 0 >::Entity &e)
	Marks an entity to be refined/coarsened in a subsequent adapt. More...

bool	loadBalance ()
	default implementation of load balance does nothing and returns false

bool	loadBalance (DataHandle &data)
	default implementation of load balance does nothing and returns false

Adaptivity and grid refinement
bool	mark (int refCount, const typename Codim< 0 >::Entity &e)
	Marks an entity to be refined/coarsened in a subsequent adapt. More...

int	getMark (const typename Codim< 0 >::Entity &e) const
	returns adaptation mark for given entity More...

Static Public Attributes
Exported constants
static constexpr int	dimension
	The dimension of the grid.

static constexpr int	dimensionworld
	The dimension of the world the grid lives in.

Protected Member Functions
Parallel data distribution and communication
GridImp &	asImp ()
	Barton-Nackman trick.

const GridImp &	asImp () const
	Barton-Nackman trick.

Grid Refinement Methods
HostGrid *	hostgrid_
	The host grid which contains the actual grid hierarchy structure.

void	globalRefine (int refCount)

bool	mark (int refCount, const typename Traits::template Codim< 0 >::Entity &e)
	Mark entity for refinement. More...

int	getMark (const typename Traits::template Codim< 0 >::Entity &e) const
	Return refinement mark for entity. More...

bool	preAdapt ()
	returns true, if at least one entity is marked for adaption

bool	adapt ()
	Triggers the grid refinement process.

void	postAdapt ()
	Clean up refinement markers.

unsigned int	overlapSize (int codim) const
	Size of the overlap on the leaf level.

unsigned int	ghostSize (int codim) const
	Size of the ghost cell layer on the leaf level.

unsigned int	overlapSize (int level, int codim) const
	Size of the overlap on a given level.

unsigned int	ghostSize (int level, int codim) const
	Size of the ghost cell layer on a given level.

const Communication< No_Comm > &	comm () const
	dummy communication

template<class DataHandle >
void	communicate (DataHandle &handle, InterfaceType iftype, CommunicationDirection dir, int level) const
	Communicate data of level gridView.

template<class DataHandle >
void	communicate (DataHandle &handle, InterfaceType iftype, CommunicationDirection dir) const
	Communicate data of leaf gridView.

HostGridType &	getHostGrid () const
	Returns the hostgrid this IdentityGrid lives in.

template<int codim>
const HostGrid::Traits::template Codim< codim >::Entity &	getHostEntity (const typename Traits::template Codim< codim >::Entity &e) const
	Returns the hostgrid entity encapsulated in given IdentityGrid entity.

Detailed Description

template<class HostGrid>
class Dune::IdentityGrid< HostGrid >

Provides a meta grid that is identical to its host.

Template Parameters

HostGrid The host grid type wrapped by the IdentityGrid

Member Typedef Documentation

◆ HostGridType

template<class HostGrid >

typedef HostGrid Dune::IdentityGrid< HostGrid >::HostGridType

Todo:: Should not be public

Constructor & Destructor Documentation

◆ IdentityGrid()

template<class HostGrid >

Dune::IdentityGrid< HostGrid >::IdentityGrid ( HostGrid & hostgrid )

inlineexplicit

Constructor.

Parameters

hostgrid The host grid wrapped by the IdentityGrid

Member Function Documentation

◆ getMark() [1/2]

int Dune::Grid< dim, dimworld, HostGrid::ctype , IdentityGridFamily< HostGrid::dimension, HostGrid > >::getMark ( const typename Codim< 0 >::Entity & e ) const

inlineinherited

returns adaptation mark for given entity

Parameters

[in] e Entity for which adaptation mark should be determined

Returns: int adaptation mark currently set for given Entity e

◆ getMark() [2/2]

template<class HostGrid >

int Dune::IdentityGrid< HostGrid >::getMark ( const typename Traits::template Codim< 0 >::Entity & e ) const

inline

Return refinement mark for entity.

Returns: refinement mark (1,0,-1)

References Dune::IdentityGrid< HostGrid >::hostgrid_.

◆ globalRefine()

template<class HostGrid >

void Dune::IdentityGrid< HostGrid >::globalRefine ( int refCount )

inline

global refinement

Todo:: optimize implementation

References Dune::IdentityGrid< HostGrid >::hostgrid_.

◆ mark() [1/3]

bool Dune::Grid< dim, dimworld, HostGrid::ctype , IdentityGridFamily< HostGrid::dimension, HostGrid > >::mark	(	int	refCount,
		const typename Codim< 0 >::Entity &	e
	)

inlineinherited

Marks an entity to be refined/coarsened in a subsequent adapt.

Parameters

[in]	refCount	Number of subdivisions that should be applied. Negative value means coarsening.
[in]	e	Entity that should be marked

Returns: true if Entity was marked, false otherwise.

◆ mark() [2/3]

bool Dune::GridDefaultImplementation< dim, dimworld, HostGrid::ctype , IdentityGridFamily< HostGrid::dimension, HostGrid > >::mark	(	int	refCount,
		const typename Traits ::template Codim< 0 >::Entity &	e
	)

inlineinherited

Marks an entity to be refined/coarsened in a subsequent adapt.

Parameters

[in]	refCount	Number of subdivisions that should be applied. Negative value means coarsening.
[in]	e	Entity to Entity that should be refined

Returns: true if Entity was marked, false otherwise.

Note

default implementation is: return false; for grids with no adaptation.
for the grid programmer: this method is implemented as a template method, because the Entity type is not defined when the class is instantiated You won't need this trick in the implementation. In your implementation you should use it as
bool mark( int refCount,

typename Traits::template Codim<0>::Entity & e ).

Dune::IdentityGrid::mark
bool mark(int refCount, const typename Traits::template Codim< 0 >::Entity &e)
Mark entity for refinement.
Definition: identitygrid.hh:318

Dune::Codim
Static tag representing a codimension.
Definition: dimension.hh:24

This template method will vanish due to the inheritance rules.

◆ mark() [3/3]

template<class HostGrid >

bool Dune::IdentityGrid< HostGrid >::mark	(	int	refCount,
		const typename Traits::template Codim< 0 >::Entity &	e
	)

inline

Mark entity for refinement.

This only works for entities of codim 0. The parameter is currently ignored

Returns

true, if marking was successful
false, if marking was not possible

References Dune::IdentityGrid< HostGrid >::hostgrid_.

◆ maxLevel()

template<class HostGrid >

int Dune::IdentityGrid< HostGrid >::maxLevel ( ) const

inline

Return maximum level defined in this grid.

Levels are numbered 0 ... maxlevel with 0 the coarsest level.

References Dune::IdentityGrid< HostGrid >::hostgrid_.

Referenced by Dune::IdentityGrid< HostGrid >::levelIndexSet().

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

dune/grid/identitygrid.hh

DUNE Distributed and Unified Numerics Environment

Dune Core Modules (unstable)

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Grid Refinement Methods

Detailed Description

Member Typedef Documentation

◆ HostGridType

Constructor & Destructor Documentation

◆ IdentityGrid()

Member Function Documentation

◆ getMark() [1/2]

◆ getMark() [2/2]

◆ globalRefine()

◆ mark() [1/3]

◆ mark() [2/3]

◆ mark() [3/3]

◆ maxLevel()