Reference documentation for deal.II version Git 1107d12a13 2020-09-20 22:39:51 -0400
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Public Attributes | List of all members
internal::GenericDoFsPerObject Struct Reference

#include <deal.II/fe/fe_base.h>

Public Attributes

std::vector< std::vector< unsigned int > > dofs_per_object_exclusive
 
std::vector< std::vector< unsigned int > > dofs_per_object_inclusive
 
std::vector< std::vector< unsigned int > > object_index
 
std::vector< std::vector< unsigned int > > first_object_index_on_face
 

Detailed Description

Internal data structure for setting up FiniteElementData. It stores for each object the (inclusive/exclusive) number of degrees of freedoms, as well as, the index of its first degree of freedom within a cell and the index of the first d-dimensional object within each face.

The information is saved as a vector of vectors. One can query the inclusive number of dofs of the i-th d-dimensional object via: dofs_per_object_inclusive[d][i].

As an example, the data is shown for a quadratic wedge. Which consists of 6 vertices, 9 lines, and 5 faces (two triangles and three quadrilaterals).

         vertices                  lines                  faces cell

dpo_excl 1 1 1 1 1 1 | 1 1 1 1 1 1 1 1 1 | 0 0 1 1 1 | 0 dpo_incl 1 1 1 1 1 1 | 3 3 3 3 3 3 3 3 3 | 6 6 9 9 9 | 18 obj_index 0 1 2 3 4 5 | 6 7 8 9 10 11 12 13 14 | 15 15 15 16 17 | 18

Since the above table looks as follows for:

dpo_excl 1 1 1 | 1 1 1 | 0 obj_index 0 1 2 | 3 4 5 | 6

dpo_excl 1 1 1 1 | 1 1 1 1 | 1 obj_index 0 1 2 3 | 4 5 6 7 | 8

The index of the first d-dimensional object within each face results as:

                    vertices      lines       face

first_obj_index_on_face 0 0 0 0 0 | 3 3 4 4 4 | 6 6 8 8 8

Definition at line 169 of file fe_base.h.

Member Data Documentation

◆ dofs_per_object_exclusive

std::vector<std::vector<unsigned int> > internal::GenericDoFsPerObject::dofs_per_object_exclusive

Exclusive number of degrees of freedom per object.

Definition at line 174 of file fe_base.h.

◆ dofs_per_object_inclusive

std::vector<std::vector<unsigned int> > internal::GenericDoFsPerObject::dofs_per_object_inclusive

Inclusive number of degrees of freedom per object.

Definition at line 179 of file fe_base.h.

◆ object_index

std::vector<std::vector<unsigned int> > internal::GenericDoFsPerObject::object_index

First index of an object.

Definition at line 184 of file fe_base.h.

◆ first_object_index_on_face

std::vector<std::vector<unsigned int> > internal::GenericDoFsPerObject::first_object_index_on_face

First index of an object within a face.

Definition at line 189 of file fe_base.h.


The documentation for this struct was generated from the following file: