[ provides Dune::Grid ] More...

#include <dune/grid/albertagrid/agrid.hh>

Public Types
typedef AlbertaGridFamily< dim, dimworld >	GridFamily
	the grid family of AlbertaGrid

typedef Traits::LeafIndexSet	LeafIndexSet
	type of leaf index set

typedef Traits::LevelIndexSet	LevelIndexSet
	type of level index sets

typedef Traits::HierarchicIndexSet	HierarchicIndexSet
	type of hierarchic index set

typedef Traits::GlobalIdSet	GlobalIdSet
	type of global id set

typedef Traits::LocalIdSet	LocalIdSet
	type of local id set

typedef Traits::Communication	Communication
	type of communication

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.

Public Member Functions
	AlbertaGrid ()
	create an empty grid

	AlbertaGrid (const Alberta::MacroData< dimension > &macroData, const std::shared_ptr< DuneBoundaryProjection< dimensionworld > > &projection=std::shared_ptr< DuneBoundaryProjection< dimensionworld > >())
	create a grid from an ALBERTA macro data structure More...

	AlbertaGrid (const std::string &macroGridFileName)
	create a grid from an ALBERTA macro grid file More...

	~AlbertaGrid ()
	destructor

int	maxLevel () const

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

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

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 >::LeafIterator	leafbegin () const
	return LeafIterator which points to first leaf entity

template<int codim, PartitionIteratorType pitype>
Traits::template Codim< codim >::template Partition< pitype >::LeafIterator	leafend () const
	return LeafIterator which points behind last leaf entity

template<int codim>
Traits::template Codim< codim >::LeafIterator	leafbegin () const
	return LeafIterator which points to first leaf entity

template<int codim>
Traits::template Codim< codim >::LeafIterator	leafend () const
	return LeafIterator which points behind last leaf entity

int	size (int level, int codim) const
	Number of grid entities per level and codim because lbegin and lend are none const, and we need this methods counting the entities on each level, you know.

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

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

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

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

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.

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

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

void	globalRefine (int refCount)
	uses the interface, mark on entity and refineLocal

bool	adapt ()
	Refine all positive marked leaf entities, coarsen all negative marked entities if possible. More...

template<class DataHandle >
bool	adapt (AdaptDataHandleInterface< This, DataHandle > &handle)
	callback adapt method with AdaptDataHandleInterface

bool	preAdapt ()
	returns true, if a least one element is marked for coarsening

void	postAdapt ()
	clean up some markers

const Communication &	comm () const
	return reference to communication, if MPI found this is specialisation for MPI

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

bool	writeGrid (const std::string &filename, ctype time) const
	write Grid to file in Xdr

bool	readGrid (const std::string &filename, ctype &time)
	read Grid from file filename and store time of mesh in time

const Traits::LevelIndexSet &	levelIndexSet (int level) const
	return level index set for given level

const Traits::LeafIndexSet &	leafIndexSet () const
	return leaf index set

const GlobalIdSet &	globalIdSet () const
	return global IdSet

const LocalIdSet &	localIdSet () const
	return local IdSet

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...

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

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

Detailed Description

template<int dim, int dimworld = Alberta::dimWorld>
class Dune::AlbertaGrid< dim, dimworld >

[ provides Dune::Grid ]

Simplicial grid implementation from the ALBERTA finite element toolbox

AlbertaGrid provides access to the grid from the ALBERTA finite element toolbox through the Dune interface.

ALBERTA is a finite element toolbox written by Alfred Schmidt and Kunibert G. Siebert (see http://www.alberta-fem.de). It contains a simplicial mesh in 1, 2 and 3 space dimensions that can be dynamically adapted by a bisection algorithm.

Supported ALBERTA versions include 3.0 or higher. It can be downloaded from the ALBERTA website (https://gitlab.mathematik.uni-stuttgart.de/ians-nmh/alberta/alberta3).

After installing ALBERTA, just configure DUNE with the cmake option -DAlberta_ROOT=[path/to/alberta] and provide the path to ALBERTA.

Each program linking to ALBERTA only supports a fixed dimension of world. This is obtained from the ALBERTA_DIM preprocessor variable. This variable and all other necessary link flags and libraries are set by the cmake function add_dune_alberta_flags(WORLDDIM [N] [targets]...) with N the world dimension.

CMake sets the compile flag HAVE_ALBERTA that tells you whether ALBERTA was found, and ALBERTA_DIM compile flags which tells you the dimension of world for this program.

Constructor & Destructor Documentation

◆ AlbertaGrid() [1/2]

template<int dim, int dimworld>

Dune::AlbertaGrid< dim, dimworld >::AlbertaGrid	(	const Alberta::MacroData< dimension > &	macroData,
		const std::shared_ptr< DuneBoundaryProjection< dimensionworld > > &	projection = `std::shared_ptr< DuneBoundaryProjection< dimensionworld > >()`
	)

inline

create a grid from an ALBERTA macro data structure

Parameters

[in]	macroData	macro data to create grid from
[in]	projection	shared pointer to a global boundary projection (defaults to 0)

References DUNE_THROW.

◆ AlbertaGrid() [2/2]

template<int dim, int dimworld>

Dune::AlbertaGrid< dim, dimworld >::AlbertaGrid ( const std::string & macroGridFileName )

inline

create a grid from an ALBERTA macro grid file

Parameters

[in] macroGridFileName name of the macro grid file

References DUNE_THROW.

Member Function Documentation

◆ adapt()

template<int dim, int dimworld>

bool Dune::AlbertaGrid< dim, dimworld >::adapt

inline

Refine all positive marked leaf entities, coarsen all negative marked entities if possible.

\return true if a least one entity was refined

The complete adaptation process works as follows:

- mark entities with the mark() method
- call preAdapt()
- if preAdapt() returned true: possibly save current solution
- call adapt()
- if adapt() returned true: possibly interpolate the (saved) solution
- call postAdapt()

References Dune::AlbertaGrid< dim, dimworld >::preAdapt().

◆ getMark() [1/2]

int Dune::Grid< dim, dimworld, Alberta::Real , AlbertaGridFamily< dim, Alberta::dimWorld > >::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<int dim, int dimworld>

int Dune::AlbertaGrid< dim, dimworld >::getMark ( const typename Traits::template Codim< 0 >::Entity & e ) const

inline

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

References Dune::AlbertaGrid< dim, dimworld >::getMark().

Referenced by Dune::AlbertaGrid< dim, dimworld >::getMark().

◆ mark() [1/3]

bool Dune::Grid< dim, dimworld, Alberta::Real , AlbertaGridFamily< dim, Alberta::dimWorld > >::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, Alberta::Real , AlbertaGridFamily< dim, Alberta::dimWorld > >::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::AlbertaGrid::mark
bool mark(int refCount, const typename Traits::template Codim< 0 >::Entity &e)
Marks an entity to be refined/coarsened in a subsequent adapt.
Definition: albertagrid.cc:385

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<int dim, int dimworld>

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

inline

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.

◆ maxLevel()

template<int dim, int dimworld>

int Dune::AlbertaGrid< dim, dimworld >::maxLevel

inline

Return maximum level defined in this grid. Levels are numbered 0 ... maxLevel with 0 the coarsest level.

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

dune/grid/albertagrid/agrid.hh
dune/grid/albertagrid/albertagrid.cc

DUNE Distributed and Unified Numerics Environment

Dune Core Modules (unstable)

Public Types

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ AlbertaGrid() [1/2]

◆ AlbertaGrid() [2/2]

Member Function Documentation

◆ adapt()

◆ getMark() [1/2]

◆ getMark() [2/2]

◆ mark() [1/3]

◆ mark() [2/3]

◆ mark() [3/3]

◆ maxLevel()