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// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2001 - 2023 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Part of the source code is dual licensed under Apache-2.0 WITH
// LLVM-exception OR LGPL-2.1-or-later. Detailed license information
// governing the source code and code contributions can be found in
// LICENSE.md and CONTRIBUTING.md at the top level directory of deal.II.
//
// ------------------------------------------------------------------------
#include <deal.II/base/geometry_info.h>
#include <deal.II/fe/fe.h>
DEAL_II_NAMESPACE_OPEN
namespace internal
{
internal::GenericDoFsPerObject
expand(const unsigned int dim,
const std::vector<unsigned int> &dofs_per_object,
const ReferenceCell cell_type)
{
internal::GenericDoFsPerObject result;
const unsigned int face_no = 0;
result.dofs_per_object_exclusive.resize(4, std::vector<unsigned int>(1));
result.dofs_per_object_inclusive.resize(4, std::vector<unsigned int>(1));
result.object_index.resize(4, std::vector<unsigned int>(1));
result.first_object_index_on_face.resize(3, std::vector<unsigned int>(1));
// dofs_per_vertex
const unsigned int dofs_per_vertex = dofs_per_object[0];
result.dofs_per_object_exclusive[0][0] = dofs_per_vertex;
// dofs_per_line
const unsigned int dofs_per_line = dofs_per_object[1];
result.dofs_per_object_exclusive[1][0] = dofs_per_line;
// dofs_per_quad
const unsigned int dofs_per_quad = dim > 1 ? dofs_per_object[2] : 0;
result.dofs_per_object_exclusive[2][0] = dofs_per_quad;
// dofs_per_hex
const unsigned int dofs_per_hex = dim > 2 ? dofs_per_object[3] : 0;
result.dofs_per_object_exclusive[3][0] = dofs_per_hex;
// first_line_index
const unsigned int first_line_index =
(cell_type.n_vertices() * dofs_per_vertex);
result.object_index[1][0] = first_line_index;
// first_quad_index
const unsigned int first_quad_index =
(first_line_index + cell_type.n_lines() * dofs_per_line);
result.object_index[2][0] = first_quad_index;
// first_hex_index
result.object_index[3][0] =
(first_quad_index +
(dim == 2 ? 1 : (dim == 3 ? cell_type.n_faces() : 0)) * dofs_per_quad);
// first_face_line_index
result.first_object_index_on_face[1][0] =
(cell_type.face_reference_cell(face_no).n_vertices() * dofs_per_vertex);
// first_face_quad_index
result.first_object_index_on_face[2][0] =
((dim == 3 ? cell_type.face_reference_cell(face_no).n_vertices() *
dofs_per_vertex :
cell_type.n_vertices() * dofs_per_vertex) +
cell_type.face_reference_cell(face_no).n_lines() * dofs_per_line);
// dofs_per_face
result.dofs_per_object_inclusive[dim - 1][0] =
(cell_type.face_reference_cell(face_no).n_vertices() * dofs_per_vertex +
cell_type.face_reference_cell(face_no).n_lines() * dofs_per_line +
(dim == 3 ? 1 : 0) * dofs_per_quad);
// dofs_per_cell
result.dofs_per_object_inclusive[dim][0] =
(cell_type.n_vertices() * dofs_per_vertex +
cell_type.n_lines() * dofs_per_line +
(dim == 2 ? 1 : (dim == 3 ? cell_type.n_faces() : 0)) * dofs_per_quad +
(dim == 3 ? 1 : 0) * dofs_per_hex);
return result;
}
unsigned int
number_unique_entries(const std::vector<unsigned int> &vector)
{
if (std::all_of(vector.begin(), vector.end(), [&](const auto &e) {
return e == vector.front();
}))
{
return 1;
}
else
return vector.size();
}
} // namespace internal
template <int dim>
FiniteElementData<dim>::FiniteElementData(
const std::vector<unsigned int> &dofs_per_object,
const unsigned int n_components,
const unsigned int degree,
const Conformity conformity,
const BlockIndices &block_indices)
: FiniteElementData(dofs_per_object,
dim == 0 ?
ReferenceCells::Vertex :
(dim == 1 ? ReferenceCells::Line :
(dim == 2 ? ReferenceCells::Quadrilateral :
ReferenceCells::Hexahedron)),
n_components,
degree,
conformity,
block_indices)
{}
template <int dim>
FiniteElementData<dim>::FiniteElementData(
const std::vector<unsigned int> &dofs_per_object,
const ReferenceCell cell_type,
const unsigned int n_components,
const unsigned int degree,
const Conformity conformity,
const BlockIndices &block_indices)
: FiniteElementData(internal::expand(dim, dofs_per_object, cell_type),
cell_type,
n_components,
degree,
conformity,
block_indices)
{}
template <int dim>
FiniteElementData<dim>::FiniteElementData(
const internal::GenericDoFsPerObject &data,
const ReferenceCell reference_cell,
const unsigned int n_components,
const unsigned int degree,
const Conformity conformity,
const BlockIndices &block_indices)
: reference_cell_kind(reference_cell)
, number_of_unique_2d_subobjects(
internal::number_unique_entries(data.dofs_per_object_inclusive[2]))
, number_unique_faces(
internal::number_unique_entries(data.dofs_per_object_inclusive[dim - 1]))
, dofs_per_vertex(data.dofs_per_object_exclusive[0][0])
, dofs_per_line(data.dofs_per_object_exclusive[1][0])
, n_dofs_on_quad(data.dofs_per_object_exclusive[2])
, dofs_per_quad(n_dofs_on_quad[0])
, dofs_per_quad_max(
*max_element(n_dofs_on_quad.begin(), n_dofs_on_quad.end()))
, dofs_per_hex(data.dofs_per_object_exclusive[3][0])
, first_line_index(data.object_index[1][0])
, first_index_of_quads(data.object_index[2])
, first_quad_index(first_index_of_quads[0])
, first_hex_index(data.object_index[3][0])
, first_line_index_of_faces(data.first_object_index_on_face[1])
, first_face_line_index(first_line_index_of_faces[0])
, first_quad_index_of_faces(data.first_object_index_on_face[2])
, first_face_quad_index(first_quad_index_of_faces[0])
, n_dofs_on_face(data.dofs_per_object_inclusive[dim - 1])
, dofs_per_face(n_dofs_on_face[0])
, dofs_per_face_max(
*max_element(n_dofs_on_face.begin(), n_dofs_on_face.end()))
, dofs_per_cell(data.dofs_per_object_inclusive[dim][0])
, components(n_components)
, degree(degree)
, conforming_space(conformity)
, block_indices_data(block_indices.size() == 0 ?
BlockIndices(1, dofs_per_cell) :
block_indices)
{}
template <int dim>
bool
FiniteElementData<dim>::operator==(const FiniteElementData<dim> &f) const
{
return ((dofs_per_vertex == f.dofs_per_vertex) &&
(dofs_per_line == f.dofs_per_line) &&
(dofs_per_quad == f.dofs_per_quad) &&
(dofs_per_hex == f.dofs_per_hex) && (components == f.components) &&
(degree == f.degree) && (conforming_space == f.conforming_space));
}
template class FiniteElementData<1>;
template class FiniteElementData<2>;
template class FiniteElementData<3>;
DEAL_II_NAMESPACE_CLOSE
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