Reference documentation for deal.II version Git 7026f387cc 2019-10-15 14:19:01 -0400
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Public Member Functions | Protected Member Functions | Protected Attributes | Private Attributes | List of all members
hp::FEValuesBase< dim, q_dim, FEValuesType > Class Template Reference

#include <deal.II/hp/fe_values.h>

Inheritance diagram for hp::FEValuesBase< dim, q_dim, FEValuesType >:
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Public Member Functions

 FEValuesBase (const MappingCollection< dim, FEValuesType::space_dimension > &mapping_collection, const FECollection< dim, FEValuesType::space_dimension > &fe_collection, const QCollection< q_dim > &q_collection, const UpdateFlags update_flags)
 
 FEValuesBase (const FECollection< dim, FEValuesType::space_dimension > &fe_collection, const QCollection< q_dim > &q_collection, const UpdateFlags update_flags)
 
const FECollection< dim, FEValuesType::space_dimension > & get_fe_collection () const
 
const MappingCollection< dim, FEValuesType::space_dimension > & get_mapping_collection () const
 
const QCollection< q_dim > & get_quadrature_collection () const
 
UpdateFlags get_update_flags () const
 
const FEValuesType & get_present_fe_values () const
 

Protected Member Functions

FEValuesType & select_fe_values (const unsigned int fe_index, const unsigned int mapping_index, const unsigned int q_index)
 

Protected Attributes

const SmartPointer< const FECollection< dim, FEValuesType::space_dimension >, FEValuesBase< dim, q_dim, FEValuesType > > fe_collection
 
const SmartPointer< const MappingCollection< dim, FEValuesType::space_dimension >, FEValuesBase< dim, q_dim, FEValuesType > > mapping_collection
 
const QCollection< q_dim > q_collection
 

Private Attributes

Table< 3, std::shared_ptr< FEValuesType > > fe_values_table
 
TableIndices< 3 > present_fe_values_index
 
const UpdateFlags update_flags
 

Detailed Description

template<int dim, int q_dim, class FEValuesType>
class hp::FEValuesBase< dim, q_dim, FEValuesType >

Base class for the hp::FE*Values classes, storing the data that is common to them. The main task of this class is to provide a table where for every combination of finite element, mapping, and quadrature object from their corresponding collection objects there is a matching FEValues, FEFaceValues, or FESubfaceValues object. To make things more efficient, however, these FE*Values objects are only created once requested (lazy allocation).

The first template parameter denotes the space dimension we are in, the second the dimensionality of the object that we integrate on, i.e. for usual hp::FEValues it is equal to the first one, while for face integration it is one less. The third template parameter indicates the type of underlying non-hp FE*Values base type, i.e. it could either be FEValues, FEFaceValues, or FESubfaceValues.

Author
Wolfgang Bangerth, 2003

Definition at line 63 of file fe_values.h.

Constructor & Destructor Documentation

◆ FEValuesBase() [1/2]

template<int dim, int q_dim, class FEValuesType>
hp::FEValuesBase< dim, q_dim, FEValuesType >::FEValuesBase ( const MappingCollection< dim, FEValuesType::space_dimension > &  mapping_collection,
const FECollection< dim, FEValuesType::space_dimension > &  fe_collection,
const QCollection< q_dim > &  q_collection,
const UpdateFlags  update_flags 
)

Constructor. Set the fields of this class to the values indicated by the parameters to the constructor.

◆ FEValuesBase() [2/2]

template<int dim, int q_dim, class FEValuesType>
hp::FEValuesBase< dim, q_dim, FEValuesType >::FEValuesBase ( const FECollection< dim, FEValuesType::space_dimension > &  fe_collection,
const QCollection< q_dim > &  q_collection,
const UpdateFlags  update_flags 
)

Constructor. This constructor is equivalent to the other one except that it makes the object use a \(Q_1\) mapping (i.e., an object of type MappingQGeneric(1)) implicitly.

Member Function Documentation

◆ get_fe_collection()

template<int dim, int q_dim, class FEValuesType >
const FECollection< dim, FEValuesType::space_dimension > & FEValuesBase< dim, q_dim, FEValuesType >::get_fe_collection ( ) const
inline

Get a reference to the collection of finite element objects used here.

Definition at line 578 of file fe_values.h.

◆ get_mapping_collection()

template<int dim, int q_dim, class FEValuesType >
const MappingCollection< dim, FEValuesType::space_dimension > & FEValuesBase< dim, q_dim, FEValuesType >::get_mapping_collection ( ) const
inline

Get a reference to the collection of mapping objects used here.

Definition at line 587 of file fe_values.h.

◆ get_quadrature_collection()

template<int dim, int q_dim, class FEValuesType >
const QCollection< q_dim > & FEValuesBase< dim, q_dim, FEValuesType >::get_quadrature_collection ( ) const
inline

Get a reference to the collection of quadrature objects used here.

Definition at line 596 of file fe_values.h.

◆ get_update_flags()

template<int dim, int q_dim, class FEValuesType >
UpdateFlags FEValuesBase< dim, q_dim, FEValuesType >::get_update_flags ( ) const
inline

Get the underlying update flags.

Definition at line 605 of file fe_values.h.

◆ get_present_fe_values()

template<int dim, int q_dim, class FEValuesType >
const FEValuesType & FEValuesBase< dim, q_dim, FEValuesType >::get_present_fe_values ( ) const
inline

Return a reference to the FEValues object selected by the last call to select_fe_values(). select_fe_values() in turn is called when you called the reinit function of the hp::FE*Values class the last time.

Definition at line 569 of file fe_values.h.

◆ select_fe_values()

template<int dim, int q_dim, class FEValuesType >
FEValuesType & FEValuesBase< dim, q_dim, FEValuesType >::select_fe_values ( const unsigned int  fe_index,
const unsigned int  mapping_index,
const unsigned int  q_index 
)
protected

Select a FEValues object suitable for the given FE, quadrature, and mapping indices. If such an object doesn't yet exist, create one.

The function returns a writable reference so that derived classes can also reinit() the selected FEValues object.

Definition at line 69 of file fe_values.cc.

Member Data Documentation

◆ fe_collection

template<int dim, int q_dim, class FEValuesType>
const SmartPointer<const FECollection<dim, FEValuesType::space_dimension>, FEValuesBase<dim, q_dim, FEValuesType> > hp::FEValuesBase< dim, q_dim, FEValuesType >::fe_collection
protected

A pointer to the collection of finite elements to be used.

Definition at line 139 of file fe_values.h.

◆ mapping_collection

template<int dim, int q_dim, class FEValuesType>
const SmartPointer< const MappingCollection<dim, FEValuesType::space_dimension>, FEValuesBase<dim, q_dim, FEValuesType> > hp::FEValuesBase< dim, q_dim, FEValuesType >::mapping_collection
protected

A pointer to the collection of mappings to be used.

Definition at line 147 of file fe_values.h.

◆ q_collection

template<int dim, int q_dim, class FEValuesType>
const QCollection<q_dim> hp::FEValuesBase< dim, q_dim, FEValuesType >::q_collection
protected

Copy of the quadrature collection object provided to the constructor.

Definition at line 152 of file fe_values.h.

◆ fe_values_table

template<int dim, int q_dim, class FEValuesType>
Table<3, std::shared_ptr<FEValuesType> > hp::FEValuesBase< dim, q_dim, FEValuesType >::fe_values_table
private

A table in which we store pointers to fe_values objects for different finite element, mapping, and quadrature objects from our collection. The first index indicates the index of the finite element within the fe_collection, the second the index of the mapping within the mapping collection, and the last one the index of the quadrature formula within the q_collection.

Initially, all entries have zero pointers, and we will allocate them lazily as needed in select_fe_values().

Definition at line 166 of file fe_values.h.

◆ present_fe_values_index

template<int dim, int q_dim, class FEValuesType>
TableIndices<3> hp::FEValuesBase< dim, q_dim, FEValuesType >::present_fe_values_index
private

Set of indices pointing at the fe_values object selected last time the select_fe_value() function was called.

Definition at line 172 of file fe_values.h.

◆ update_flags

template<int dim, int q_dim, class FEValuesType>
const UpdateFlags hp::FEValuesBase< dim, q_dim, FEValuesType >::update_flags
private

Values of the update flags as given to the constructor.

Definition at line 177 of file fe_values.h.


The documentation for this class was generated from the following files: