MeltPoolDG::AMR Namespace Reference

Namespaces
namespace	internal

Classes
class	AMRIndicatorBase
class	AMRRegion
	Type-erased wrapper representing a geometric region for adaptive mesh refinement. More...
class	BinaryOpIndicatorComposite
class	JumpIndicator
class	SphereAMRRegion
	Represents a spherical region for adaptive mesh refinement. More...
class	SphericalShellAMRRegion
	Represents a spherical shell region for adaptive mesh refinement (AMR). More...
class	SSEDIndicator

Typedefs
template<int dim>
using	MarkCellsForRefinementType = std::function< bool(dealii::Triangulation< dim > &)>

Functions
template<typename number >
bool	now (const AdaptiveMeshingData< number > &amr, const int n_time_step)
template<int dim, typename VectorType , typename number = typename VectorType::value_type>
void	refine_grid (const MarkCellsForRefinementType< dim > &mark_cells_for_refinement, const AttachDoFHandlerAndVectorsType< dim, VectorType > &attach_vectors, const std::function< void()> &setup_dof_system, const AdaptiveMeshingData< number > &amr, dealii::Triangulation< dim > &tria, const int n_time_step, const std::function< void()> &post=std::function< void()>(), const std::function< void()> &pre=std::function< void()>())
template<int dim, typename VectorType , typename number >
void	refine_grid (const std::function< bool(dealii::Triangulation< dim > &)> &mark_cells_for_refinement, const std::function< void(std::vector< VectorType * > &)> &attach_vectors, const std::function< void()> &setup_dof_system, const AdaptiveMeshingData< number > &amr, dealii::DoFHandler< dim > &dof_handler, const int n_time_step, const std::function< void()> &post=std::function< void()>(), const std::function< void()> &pre=std::function< void()>())
template<int dim, typename number >
bool	mark_fixed_number (dealii::Triangulation< dim > &tria, const dealii::Vector< number > &indicator, const AdaptiveMeshingData< number > &amr_data, dealii::types::global_cell_index max_n_cells=std::numeric_limits< dealii::types::global_cell_index >::max())
template<int dim, typename number >
bool	mark_fixed_fraction (dealii::Triangulation< dim > &tria, const dealii::Vector< number > &indicator, const AdaptiveMeshingData< number > &amr_data)
template<int dim, typename number >
bool	set_refinement_flags_in_regions (dealii::Triangulation< dim > &tria, const std::vector< AMRRegion< dim, number > > &regions={}, bool do_coarsening=false)
	Marks cells in a triangulation for refinement if their centers fall inside specified regions.
template<int dim, typename VectorType , typename number >
void	refine_grid (const MarkCellsForRefinementType< dim > &mark_cells_for_refinement, const std::function< void(std::vector< VectorType * > &)> &attach_vectors, const std::function< void()> &setup_dof_system, const AdaptiveMeshingData< number > &amr, dealii::DoFHandler< dim > &dof_handler, const int n_time_step, const std::function< void()> &post, const std::function< void()> &pre)
template void	refine_grid (const MarkCellsForRefinementType< 1 > &, const AttachDoFHandlerAndVectorsType< 1, dealii::LinearAlgebra::distributed::Vector< double > > &, const std::function< void()> &, const AdaptiveMeshingData< double > &, dealii::Triangulation< 1 > &, const int, const std::function< void()> &, const std::function< void()> &)
template void	refine_grid (const MarkCellsForRefinementType< 2 > &, const AttachDoFHandlerAndVectorsType< 2, dealii::LinearAlgebra::distributed::Vector< double > > &, const std::function< void()> &, const AdaptiveMeshingData< double > &, dealii::Triangulation< 2 > &, const int, const std::function< void()> &, const std::function< void()> &)
template void	refine_grid (const MarkCellsForRefinementType< 3 > &, const AttachDoFHandlerAndVectorsType< 3, dealii::LinearAlgebra::distributed::Vector< double > > &, const std::function< void()> &, const AdaptiveMeshingData< double > &, dealii::Triangulation< 3 > &, const int, const std::function< void()> &, const std::function< void()> &)
template void	refine_grid (const MarkCellsForRefinementType< 1 > &, const std::function< void(std::vector< dealii::LinearAlgebra::distributed::Vector< double > * > &)> &, const std::function< void()> &, const AdaptiveMeshingData< double > &, dealii::DoFHandler< 1 > &, const int, const std::function< void()> &, const std::function< void()> &)
template void	refine_grid (const MarkCellsForRefinementType< 2 > &, const std::function< void(std::vector< dealii::LinearAlgebra::distributed::Vector< double > * > &)> &, const std::function< void()> &, const AdaptiveMeshingData< double > &, dealii::DoFHandler< 2 > &, const int, const std::function< void()> &, const std::function< void()> &)
template void	refine_grid (const MarkCellsForRefinementType< 3 > &, const std::function< void(std::vector< dealii::LinearAlgebra::distributed::Vector< double > * > &)> &, const std::function< void()> &, const AdaptiveMeshingData< double > &, dealii::DoFHandler< 3 > &, const int, const std::function< void()> &, const std::function< void()> &)
template bool	mark_fixed_number (dealii::Triangulation< 1 > &tria, const dealii::Vector< double > &indicator, const AdaptiveMeshingData< double > &amr_data, dealii::types::global_cell_index max_n_cells)
template bool	mark_fixed_number (dealii::Triangulation< 2 > &tria, const dealii::Vector< double > &indicator, const AdaptiveMeshingData< double > &amr_data, dealii::types::global_cell_index max_n_cells)
template bool	mark_fixed_number (dealii::Triangulation< 3 > &tria, const dealii::Vector< double > &indicator, const AdaptiveMeshingData< double > &amr_data, dealii::types::global_cell_index max_n_cells)
template bool	mark_fixed_fraction (dealii::Triangulation< 1 > &tria, const dealii::Vector< double > &indicator, const AdaptiveMeshingData< double > &amr_data)
template bool	mark_fixed_fraction (dealii::Triangulation< 2 > &tria, const dealii::Vector< double > &indicator, const AdaptiveMeshingData< double > &amr_data)
template bool	mark_fixed_fraction (dealii::Triangulation< 3 > &tria, const dealii::Vector< double > &indicator, const AdaptiveMeshingData< double > &amr_data)

Typedef Documentation

MarkCellsForRefinementType

template<int dim>

using MeltPoolDG::AMR::MarkCellsForRefinementType = typedef std::function<bool(dealii::Triangulation<dim> &)>

Type alias definition for the lambda function that determines how the mesh is to be refined. If this function determines that the mesh does not change, it return false, true otherwise.

Function Documentation

mark_fixed_fraction() [1/4]

template bool MeltPoolDG::AMR::mark_fixed_fraction	(	dealii::Triangulation< 1 > &	tria,
		const dealii::Vector< double > &	indicator,
		const AdaptiveMeshingData< double > &	amr_data
	)

mark_fixed_fraction() [2/4]

template bool MeltPoolDG::AMR::mark_fixed_fraction	(	dealii::Triangulation< 2 > &	tria,
		const dealii::Vector< double > &	indicator,
		const AdaptiveMeshingData< double > &	amr_data
	)

mark_fixed_fraction() [3/4]

template bool MeltPoolDG::AMR::mark_fixed_fraction	(	dealii::Triangulation< 3 > &	tria,
		const dealii::Vector< double > &	indicator,
		const AdaptiveMeshingData< double > &	amr_data
	)

mark_fixed_fraction() [4/4]

template<int dim, typename number >

bool MeltPoolDG::AMR::mark_fixed_fraction	(	dealii::Triangulation< dim > &	tria,
		const dealii::Vector< number > &	indicator,
		const AdaptiveMeshingData< number > &	amr_data
	)

Marks cells for refinement or coarsening based on the provided indicator.

The marking strategy follows the approach described in deal.II’s documentation for GridRefinement::refine_and_coarsen_fixed_fraction().

Parameters

tria	Triangulation whose cells are to be marked for refinement or coarsening. Smaller values indicate a lower need for refinement.
indicator	Vector of refinement indicators for the active cells.
amr_data	Object defining the lower and upper fractions of cells to refine or coarsen.

mark_fixed_number() [1/4]

template bool MeltPoolDG::AMR::mark_fixed_number	(	dealii::Triangulation< 1 > &	tria,
		const dealii::Vector< double > &	indicator,
		const AdaptiveMeshingData< double > &	amr_data,
		dealii::types::global_cell_index	max_n_cells
	)

mark_fixed_number() [2/4]

template bool MeltPoolDG::AMR::mark_fixed_number	(	dealii::Triangulation< 2 > &	tria,
		const dealii::Vector< double > &	indicator,
		const AdaptiveMeshingData< double > &	amr_data,
		dealii::types::global_cell_index	max_n_cells
	)

mark_fixed_number() [3/4]

template bool MeltPoolDG::AMR::mark_fixed_number	(	dealii::Triangulation< 3 > &	tria,
		const dealii::Vector< double > &	indicator,
		const AdaptiveMeshingData< double > &	amr_data,
		dealii::types::global_cell_index	max_n_cells
	)

mark_fixed_number() [4/4]

template<int dim, typename number >

bool MeltPoolDG::AMR::mark_fixed_number	(	dealii::Triangulation< dim > &	tria,
		const dealii::Vector< number > &	indicator,
		const AdaptiveMeshingData< number > &	amr_data,
		dealii::types::global_cell_index	max_n_cells = std::numeric_limits<dealii::types::global_cell_index>::max()
	)

Marks cells for refinement or coarsening based on the provided indicator.

The marking strategy follows the approach described in deal.II’s documentation for GridRefinement::refine_and_coarsen_fixed_number().

Parameters

tria	Triangulation whose cells are to be marked for refinement or coarsening. Smaller values indicate a lower need for refinement.
indicator	Vector of refinement indicators for the active cells.
amr_data	Object defining the lower and upper fractions of cells to refine or coarsen.
max_n_cells	Maximum number of total cells allowed in the triangulation.

now()

template<typename number >

bool MeltPoolDG::AMR::now ( const AdaptiveMeshingData< number > &  amr, const int  n_time_step  )

inline

determine whether the current

Parameters

n_time_step	is chosen to execute AMR
amr	AMR parameters
n_time_step	current time step number

refine_grid() [1/9]

template void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< 1 > &	,
		const AttachDoFHandlerAndVectorsType< 1, dealii::LinearAlgebra::distributed::Vector< double > > &	,
		const std::function< void()> &	,
		const AdaptiveMeshingData< double > &	,
		dealii::Triangulation< 1 > &	,
		const int	,
		const std::function< void()> &	,
		const std::function< void()> &
	)

refine_grid() [2/9]

template void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< 1 > &	,
		const std::function< void(std::vector< dealii::LinearAlgebra::distributed::Vector< double > * > &)> &	,
		const std::function< void()> &	,
		const AdaptiveMeshingData< double > &	,
		dealii::DoFHandler< 1 > &	,
		const int	,
		const std::function< void()> &	,
		const std::function< void()> &
	)

refine_grid() [3/9]

template void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< 2 > &	,
		const AttachDoFHandlerAndVectorsType< 2, dealii::LinearAlgebra::distributed::Vector< double > > &	,
		const std::function< void()> &	,
		const AdaptiveMeshingData< double > &	,
		dealii::Triangulation< 2 > &	,
		const int	,
		const std::function< void()> &	,
		const std::function< void()> &
	)

refine_grid() [4/9]

template void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< 2 > &	,
		const std::function< void(std::vector< dealii::LinearAlgebra::distributed::Vector< double > * > &)> &	,
		const std::function< void()> &	,
		const AdaptiveMeshingData< double > &	,
		dealii::DoFHandler< 2 > &	,
		const int	,
		const std::function< void()> &	,
		const std::function< void()> &
	)

refine_grid() [5/9]

template void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< 3 > &	,
		const AttachDoFHandlerAndVectorsType< 3, dealii::LinearAlgebra::distributed::Vector< double > > &	,
		const std::function< void()> &	,
		const AdaptiveMeshingData< double > &	,
		dealii::Triangulation< 3 > &	,
		const int	,
		const std::function< void()> &	,
		const std::function< void()> &
	)

refine_grid() [6/9]

template void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< 3 > &	,
		const std::function< void(std::vector< dealii::LinearAlgebra::distributed::Vector< double > * > &)> &	,
		const std::function< void()> &	,
		const AdaptiveMeshingData< double > &	,
		dealii::DoFHandler< 3 > &	,
		const int	,
		const std::function< void()> &	,
		const std::function< void()> &
	)

refine_grid() [7/9]

template<int dim, typename VectorType , typename number = typename VectorType::value_type>

void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< dim > &	mark_cells_for_refinement,
		const AttachDoFHandlerAndVectorsType< dim, VectorType > &	attach_vectors,
		const std::function< void()> &	setup_dof_system,
		const AdaptiveMeshingData< number > &	amr,
		dealii::Triangulation< dim > &	tria,
		const int	n_time_step,
		const std::function< void()> &	post = std::function<void()>(),
		const std::function< void()> &	pre = std::function<void()>()
	)

Refine the mesh in

Parameters

tria	if the
n_time_step	is chosen to be refined by now().
mark_cells_for_refinement	lambda function of type MarkCellsForRefinementType, see its documentation for info
attach_vectors	lambda function of type AttachDoFHandlerAndVectorsType, that attaches all DoFHandlers and their respective DoFVectors that ought to be transferred to the new mesh
setup_dof_system	setup the dof system, this includes: distribute DoFs on the new mesh create partitioning for the new mesh setup constraints on the new mesh reinit the MatrixFree object for the new DoFs (ScratchData::build()) initialize all DoF vectors for the new DoF
post	this optional lambda function is run after AMR was executed
pre	this optional lambda function is run before AMR was executed

refine_grid() [8/9]

template<int dim, typename VectorType , typename number >

void MeltPoolDG::AMR::refine_grid	(	const MarkCellsForRefinementType< dim > &	mark_cells_for_refinement,
		const std::function< void(std::vector< VectorType * > &)> &	attach_vectors,
		const std::function< void()> &	setup_dof_system,
		const AdaptiveMeshingData< number > &	amr,
		dealii::DoFHandler< dim > &	dof_handler,
		const int	n_time_step,
		const std::function< void()> &	post,
		const std::function< void()> &	pre
	)

refine_grid() [9/9]

template<int dim, typename VectorType , typename number >

void MeltPoolDG::AMR::refine_grid	(	const std::function< bool(dealii::Triangulation< dim > &)> &	mark_cells_for_refinement,
		const std::function< void(std::vector< VectorType * > &)> &	attach_vectors,
		const std::function< void()> &	setup_dof_system,
		const AdaptiveMeshingData< number > &	amr,
		dealii::DoFHandler< dim > &	dof_handler,
		const int	n_time_step,
		const std::function< void()> &	post = std::function< void()>(),
		const std::function< void()> &	pre = std::function< void()>()
	)

Same as above, but for only one

Parameters

dof_handler

set_refinement_flags_in_regions()

template<int dim, typename number >

bool MeltPoolDG::AMR::set_refinement_flags_in_regions	(	dealii::Triangulation< dim > &	tria,
		const std::vector< AMRRegion< dim, number > > &	regions = {},
		bool	do_coarsening = false
	)

Marks cells in a triangulation for refinement if their centers fall inside specified regions.

This function iterates over all active cells in the given triangulation and sets the refine flag for each cell whose center lies within any of the provided adaptive mesh refinement regions. Optionally, if the cell center does not lie within any region and the refine flag has not been already set for the cell, the coarsen flag is set.

Parameters

tria	The triangulation whose cells will be marked for refinement.
regions	A list of AMR regions. If a cell center lies inside any of those regions, the corresponding refinement flag will be set.
do_coarsening	If set, all cells which are not inside any of the regions and not yet marked for * refinement are marked for coarsening.

Returns

Returns true if any refine or coarsen flag has been set, otherwise returns false.

Note

If no regions are provided, the function returns immediately.