Reference documentation for deal.II version 9.4.0
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fe_q_base.h
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2//
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4//
5// This file is part of the deal.II library.
6//
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11// The full text of the license can be found in the file LICENSE.md at
12// the top level directory of deal.II.
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15
16#ifndef dealii_fe_q_base_h
17#define dealii_fe_q_base_h
18
19#include <deal.II/base/config.h>
20
22
23#include <deal.II/fe/fe_poly.h>
24
26
27
30
37template <int dim, int spacedim = dim>
38class FE_Q_Base : public FE_Poly<dim, spacedim>
39{
40public:
45 const FiniteElementData<dim> & fe_data,
46 const std::vector<bool> & restriction_is_additive_flags);
47
57 virtual void
59 FullMatrix<double> &matrix) const override;
60
61
71 virtual void
74 const unsigned int face_no = 0) const override;
75
85 virtual void
87 const FiniteElement<dim, spacedim> &source,
88 const unsigned int subface,
90 const unsigned int face_no = 0) const override;
91
96 virtual bool
97 has_support_on_face(const unsigned int shape_index,
98 const unsigned int face_index) const override;
99
122 virtual const FullMatrix<double> &
124 const unsigned int child,
125 const RefinementCase<dim> &refinement_case =
127
154 virtual const FullMatrix<double> &
156 const unsigned int child,
157 const RefinementCase<dim> &refinement_case =
159
198 virtual unsigned int
199 face_to_cell_index(const unsigned int face_dof_index,
200 const unsigned int face,
201 const bool face_orientation = true,
202 const bool face_flip = false,
203 const bool face_rotation = false) const override;
204
209 virtual std::pair<Table<2, bool>, std::vector<unsigned int>>
210 get_constant_modes() const override;
211
225 virtual bool
227
243 virtual std::vector<std::pair<unsigned int, unsigned int>>
245 const FiniteElement<dim, spacedim> &fe_other) const override;
246
251 virtual std::vector<std::pair<unsigned int, unsigned int>>
253 const FiniteElement<dim, spacedim> &fe_other) const override;
254
259 virtual std::vector<std::pair<unsigned int, unsigned int>>
261 const unsigned int face_no = 0) const override;
262
264
271 "FE_Q can only be used for polynomial degrees "
272 "greater than zero. If you want an element of polynomial "
273 "degree zero, then it cannot be continuous and you "
274 "will want to use FE_DGQ<dim>(0).");
275
276protected:
283 static std::vector<unsigned int>
284 get_dpo_vector(const unsigned int degree);
285
291 void
292 initialize(const std::vector<Point<1>> &support_points_1d);
293
298 void
299 initialize_constraints(const std::vector<Point<1>> &points);
300
305 void
306 initialize_unit_support_points(const std::vector<Point<1>> &points);
307
312 void
314
319 void
321
328 struct Implementation;
329
330 // Declare implementation friend.
331 friend struct FE_Q_Base<dim, spacedim>::Implementation;
332
333private:
338
344 const unsigned int q_degree;
345};
346
347
351
352#endif
const std::unique_ptr< ScalarPolynomialsBase< dim > > poly_space
Definition: fe_poly.h:534
void initialize_unit_face_support_points(const std::vector< Point< 1 > > &points)
virtual bool hp_constraints_are_implemented() const override
virtual std::vector< std::pair< unsigned int, unsigned int > > hp_line_dof_identities(const FiniteElement< dim, spacedim > &fe_other) const override
virtual void get_interpolation_matrix(const FiniteElement< dim, spacedim > &source, FullMatrix< double > &matrix) const override
virtual std::vector< std::pair< unsigned int, unsigned int > > hp_quad_dof_identities(const FiniteElement< dim, spacedim > &fe_other, const unsigned int face_no=0) const override
const unsigned int q_degree
Definition: fe_q_base.h:344
virtual std::pair< Table< 2, bool >, std::vector< unsigned int > > get_constant_modes() const override
Threads::Mutex mutex
Definition: fe_q_base.h:337
void initialize_quad_dof_index_permutation()
virtual unsigned int face_to_cell_index(const unsigned int face_dof_index, const unsigned int face, const bool face_orientation=true, const bool face_flip=false, const bool face_rotation=false) const override
void initialize(const std::vector< Point< 1 > > &support_points_1d)
void initialize_unit_support_points(const std::vector< Point< 1 > > &points)
virtual void get_subface_interpolation_matrix(const FiniteElement< dim, spacedim > &source, const unsigned int subface, FullMatrix< double > &matrix, const unsigned int face_no=0) const override
virtual void get_face_interpolation_matrix(const FiniteElement< dim, spacedim > &source, FullMatrix< double > &matrix, const unsigned int face_no=0) const override
static std::vector< unsigned int > get_dpo_vector(const unsigned int degree)
void initialize_constraints(const std::vector< Point< 1 > > &points)
virtual const FullMatrix< double > & get_restriction_matrix(const unsigned int child, const RefinementCase< dim > &refinement_case=RefinementCase< dim >::isotropic_refinement) const override
virtual const FullMatrix< double > & get_prolongation_matrix(const unsigned int child, const RefinementCase< dim > &refinement_case=RefinementCase< dim >::isotropic_refinement) const override
virtual bool has_support_on_face(const unsigned int shape_index, const unsigned int face_index) const override
virtual std::vector< std::pair< unsigned int, unsigned int > > hp_vertex_dof_identities(const FiniteElement< dim, spacedim > &fe_other) const override
FE_Q_Base(const ScalarPolynomialsBase< dim > &poly_space, const FiniteElementData< dim > &fe_data, const std::vector< bool > &restriction_is_additive_flags)
const unsigned int degree
Definition: fe_data.h:449
const std::vector< bool > restriction_is_additive_flags
Definition: fe.h:2581
#define DEAL_II_NAMESPACE_OPEN
Definition: config.h:442
#define DEAL_II_NAMESPACE_CLOSE
Definition: config.h:443
static ::ExceptionBase & ExcFEQCannotHaveDegree0()
#define DeclExceptionMsg(Exception, defaulttext)
Definition: exceptions.h:487
@ matrix
Contents is actually a matrix.