polyfem::assembler::MassMatrixAssembler Class Reference

#include <MassMatrixAssembler.hpp>

Public Member Functions
void	assemble (const bool is_volume, const int size, const int n_basis, const Density &density, const std::vector< basis::ElementBases > &bases, const std::vector< basis::ElementBases > &gbases, const AssemblyValsCache &cache, StiffnessMatrix &mass) const
	Assembles the mass matrix.
void	assemble_cross (const bool is_volume, const int size, const int n_from_basis, const std::vector< basis::ElementBases > &from_bases, const std::vector< basis::ElementBases > &from_gbases, const int n_to_basis, const std::vector< basis::ElementBases > &to_bases, const std::vector< basis::ElementBases > &to_gbases, const AssemblyValsCache &cache, StiffnessMatrix &mass) const
	Assembles the cross mass matrix between to function spaces.

Detailed Description

Definition at line 16 of file MassMatrixAssembler.hpp.

Member Function Documentation

assemble()

void polyfem::assembler::MassMatrixAssembler::assemble	(	const bool	is_volume,
		const int	size,
		const int	n_basis,
		const Density &	density,
		const std::vector< basis::ElementBases > &	bases,
		const std::vector< basis::ElementBases > &	gbases,
		const AssemblyValsCache &	cache,
		StiffnessMatrix &	mass
	)		const

Assembles the mass matrix.

Parameters

[in]	is_volume	True if the mesh is volumetric.
[in]	size	Size of the problem (e.g., 1 for Laplace).
[in]	n_basis	Number of basis functions (bases and geometric bases).
[in]	density	Class that can evaluate per point density.
[in]	bases	Finite element bases.
[in]	gbases	Geometric bases.
[in]	cache	Assembly values cache.
[out]	mass	Output constructed mass matrix.

Definition at line 68 of file MassMatrixAssembler.cpp.

References polyfem::utils::create_thread_storage(), polyfem::utils::get_local_thread_storage(), polyfem::utils::maybe_parallel_for(), quadrature, and vals.

Referenced by polyfem::mesh::Remesher::project_quantities(), and polyfem::mesh::PhysicsRemesher< wmtk::TetMesh >::smooth_after().

Here is the call graph for this function:

Here is the caller graph for this function:

assemble_cross()

void polyfem::assembler::MassMatrixAssembler::assemble_cross	(	const bool	is_volume,
		const int	size,
		const int	n_from_basis,
		const std::vector< basis::ElementBases > &	from_bases,
		const std::vector< basis::ElementBases > &	from_gbases,
		const int	n_to_basis,
		const std::vector< basis::ElementBases > &	to_bases,
		const std::vector< basis::ElementBases > &	to_gbases,
		const AssemblyValsCache &	cache,
		StiffnessMatrix &	mass
	)		const

Assembles the cross mass matrix between to function spaces.

Parameters

[in]	is_volume	True if the mesh is volumetric.
[in]	size	Size of the problem (e.g., 1 for Laplace).
[in]	n_from_basis	Number of basis functions in the initial function space.
[in]	from_bases	Finite element bases to map from.
[in]	from_gbases	Geometric bases to map from.
[in]	n_from_basis	Number of basis functions in the resulting function space.
[in]	from_bases	Finite element bases to map to.
[in]	from_gbases	Geometric bases to map to.
[in]	cache	Assembly values cache.
[out]	mass	Output constructed mass matrix.

Definition at line 186 of file MassMatrixAssembler.cpp.

References polyfem::utils::barycentric_coordinates(), polyfem::basis::ElementBases::bases, polyfem::utils::TetrahedronClipping::clip(), polyfem::utils::TriangleClipping::clip(), polyfem::basis::ElementBases::eval_geom_mapping(), polyfem::basis::ElementBases::evaluate_bases(), polyfem::quadrature::TetQuadrature::get_quadrature(), polyfem::quadrature::TriQuadrature::get_quadrature(), polyfem::basis::ElementBases::nodes(), quadrature, polyfem::utils::tetrahedron_volume(), polyfem::utils::triangle_area(), and val.

Referenced by polyfem::mesh::Remesher::project_quantities(), and polyfem::mesh::PhysicsRemesher< wmtk::TetMesh >::smooth_after().

Here is the call graph for this function:

Here is the caller graph for this function:

---

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

• src/polyfem/assembler/MassMatrixAssembler.hpp
• src/polyfem/assembler/MassMatrixAssembler.cpp