![]() |
Reference documentation for deal.II version 9.1.1
|
#include <deal.II/differentiation/ad/ad_helpers.h>
Public Types | |
template<typename NumberType > | |
using | tensor_type = SymmetricTensor< rank, dim, NumberType > |
template<typename NumberType > | |
using | value_type = tensor_type< NumberType > |
template<typename NumberType > | |
using | gradient_type = Tensor< rank+1, dim, NumberType > |
Static Public Member Functions | |
static unsigned int | first_component (const FEValuesExtractors::SymmetricTensor< 2 > &extractor) |
static bool | symmetric_component (const unsigned int unrolled_index) |
template<int rank_in> | |
static TableIndices< rank > | table_index_view (const TableIndices< rank_in > &table_indices, const unsigned int column_offset) |
template<typename IndexType = unsigned int, int rank_in> | |
static IndexType | local_component (const TableIndices< rank_in > &table_indices, const unsigned int column_offset) |
Static Public Attributes | |
static const unsigned int | n_components |
static const unsigned int | rank = SymmetricTensor<2, dim>::rank |
A helper struct that assists with the extraction of data associated with fields that are defined by FEExtractors. This particular specialization is for rank-2 symmetric tensor fields.
Definition at line 2077 of file ad_helpers.h.
using Differentiation::AD::internal::Extractor< dim, FEValuesExtractors::SymmetricTensor< 2 > >::tensor_type = SymmetricTensor<rank, dim, NumberType> |
The tensor type associated with this field.
Definition at line 2094 of file ad_helpers.h.
using Differentiation::AD::internal::Extractor< dim, FEValuesExtractors::SymmetricTensor< 2 > >::value_type = tensor_type<NumberType> |
The value type associated with this field.
Definition at line 2100 of file ad_helpers.h.
using Differentiation::AD::internal::Extractor< dim, FEValuesExtractors::SymmetricTensor< 2 > >::gradient_type = Tensor<rank + 1, dim, NumberType> |
The gradient type associated with this field.
Definition at line 2106 of file ad_helpers.h.
|
inlinestatic |
Return the first global component of this field.
Definition at line 2112 of file ad_helpers.h.
|
inlinestatic |
Return a flag that indicates if the input unrolled_index
corresponds to a symmetric component of the field.
For a rank-2 symmetric tensor field, each of the off-diagonal components have a symmetric counterpart, while the diagonal components do not.
Definition at line 2126 of file ad_helpers.h.
|
inlinestatic |
Return the table indices corresponding to column_offset
entry of the input table_indices
.
Definition at line 2139 of file ad_helpers.h.
|
inlinestatic |
Return the local unrolled component corresponding to column_offset
entry of the table_indices
.
This function computes and returns a local component associated with the extractor's tensor_type
from a set of table_indices
that are generally associated with a tensor of equal or greater order. In effect, it creates a view of a selected number of indices of the input table, and interprets that subtable's indices as the local index to be returned. Since the table_indices
may be of size greater than the extractor's rank
, the column_offset
specifies the first index of the input table to create the view from.
Definition at line 2165 of file ad_helpers.h.
|
static |
The number of components of the field.
Definition at line 2082 of file ad_helpers.h.
|
static |
The tensor rank of the field.
Definition at line 2088 of file ad_helpers.h.