LocalAssembler¶
-
class
dolfin.cpp.fem.
LocalAssembler
¶ Bases:
object
Assembly of local cell tensors. Used by the adaptivity and
LocalSolver
functionality in dolfin. The local assembly functionality provided here is also wrapped as a free function assemble_local(form_a, cell) in Python for easier usage. Use from the C++ interface defined below will be faster than the free function as fewer objects need to be created and destroyed.-
static
assemble
()¶ Assemble a local tensor on a cell. Internally calls
assemble_cell
,assemble_exterior_facet
,assemble_interior_facet
.Parameters: - double, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor > & A (Eigen::Matrix<) – The tensor to assemble.
- & ufc (UFC) –
- std::vector< double > & coordinate_dofs (const) –
- & ufc_cell (ufc::cell) –
- Cell & cell (const) –
- MeshFunction< std::size_t > * cell_domains (const) –
- MeshFunction< std::size_t > * exterior_facet_domains (const) –
- MeshFunction< std::size_t > * interior_facet_domains (const) –
Return type: void
-
static
assemble_cell
()¶ Worker method called by
assemble
to perform assembly of volume integrals (UFL measure dx).Parameters: - double, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor > & A (Eigen::Matrix<) – The tensor to assemble.
- & ufc (UFC) –
- std::vector< double > & coordinate_dofs (const) –
- ufc::cell & ufc_cell (const) –
- Cell & cell (const) –
- MeshFunction< std::size_t > * cell_domains (const) –
Return type: void
-
static
assemble_exterior_facet
()¶ Worker method called by
assemble
for each of the cell’s external facets to perform assembly of external facet integrals (UFL measure ds).Parameters: - double, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor > & A (Eigen::Matrix<) – The tensor to assemble.
- & ufc (UFC) –
- std::vector< double > & coordinate_dofs (const) –
- ufc::cell & ufc_cell (const) –
- Cell & cell (const) –
- Facet & facet (const) –
- std::size_t local_facet (const) –
- MeshFunction< std::size_t > * exterior_facet_domains (const) –
Return type: void
-
static
assemble_interior_facet
()¶ Worker method called by
assemble
for each of the cell’s internal facets to perform assembly of internal facet integrals (UFL measure dS)Parameters: - double, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor > & A (Eigen::Matrix<) – The tensor to assemble.
- & ufc (UFC) –
- std::vector< double > & coordinate_dofs (const) –
- ufc::cell & ufc_cell (const) –
- Cell & cell (const) –
- Facet & facet (const) –
- std::size_t local_facet (const) –
- MeshFunction< std::size_t > * interior_facet_domains (const) –
- MeshFunction< std::size_t > * cell_domains (const) –
Return type: void
-
thisown
¶ The membership flag
-
static