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// $Id: fe_values.h 20602 2010-02-13 17:44:17Z bangerth $
// Version: $Name$
//
// Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009 by the deal.II authors
//
// This file is subject to QPL and may not be distributed
// without copyright and license information. Please refer
// to the file deal.II/doc/license.html for the text and
// further information on this license.
//
//---------------------------- hp_fe_values.h ---------------------------
#ifndef __deal2__hp_fe_values_h
#define __deal2__hp_fe_values_h
#include <base/config.h>
#include <fe/fe.h>
#include <hp/fe_collection.h>
#include <hp/q_collection.h>
#include <hp/mapping_collection.h>
#include <fe/fe_values.h>
#include <map>
#include <base/std_cxx1x/shared_ptr.h>
DEAL_II_NAMESPACE_OPEN
template <int dim, int spacedim> class MappingQ1;
template <int dim, int spacedim> class FiniteElement;
namespace internal
{
namespace hp
{
/**
* Base class for the <tt>hp::FE*Values</tt> 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 @p 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 dealii::FEValues, dealii::FEFaceValues, or
* dealii::FESubfaceValues.
*
* @ingroup hp
*
* @author Wolfgang Bangerth, 2003
*/
template <int dim, int q_dim, class FEValues>
class FEValuesBase
{
public:
/**
* Constructor. Set the fields
* of this class to the values
* indicated by the parameters
* to the constructor.
*/
FEValuesBase (const dealii::hp::MappingCollection<dim,FEValues::space_dimension> &mapping_collection,
const dealii::hp::FECollection<dim,FEValues::space_dimension> &fe_collection,
const dealii::hp::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, and
* choose a @p MappingQ1
* object for the mapping
* object.
*/
FEValuesBase (const dealii::hp::FECollection<dim,FEValues::space_dimension> &fe_collection,
const dealii::hp::QCollection<q_dim> &q_collection,
const UpdateFlags update_flags);
/**
* Get a reference to the
* collection of finite
* element objects used here.
*/
const dealii::hp::FECollection<dim,FEValues::space_dimension> &
get_fe_collection () const;
/**
* Return a reference to the @p
* FEValues object selected by the
* last call to
* select_fe_values(). select_fe_values()
* in turn is called when you called
* the @p reinit function of the
* <tt>hp::FE*Values</tt> class the
* last time.
*/
const FEValues & get_present_fe_values () const;
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.
*/
FEValues &
select_fe_values (const unsigned int fe_index,
const unsigned int mapping_index,
const unsigned int q_index);
protected:
/**
* A pointer to the
* collection of finite
* elements to be used.
*/
const SmartPointer<const dealii::hp::FECollection<dim,FEValues::space_dimension>,
FEValuesBase<dim,q_dim,FEValues> > fe_collection;
/**
* A pointer to the
* collection of mappings to
* be used.
*/
const SmartPointer<const dealii::hp::MappingCollection<dim, FEValues::space_dimension>,
FEValuesBase<dim,q_dim,FEValues> > mapping_collection;
/**
* Copy of the quadrature
* collection object
* provided to the
* constructor.
*/
const dealii::hp::QCollection<q_dim> q_collection;
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().
*/
Table<3,std_cxx1x::shared_ptr<FEValues> > fe_values_table;
/**
* Set of indices pointing at
* the fe_values object
* selected last time the
* select_fe_value() function
* was called.
*/
TableIndices<3> present_fe_values_index;
/**
* Values of the update flags as
* given to the constructor.
*/
const UpdateFlags update_flags;
};
}
}
namespace hp
{
/**
* An hp equivalent of the ::FEValues class. See the step-27
* tutorial program for examples of use.
*
* The idea of this class is as follows: when one assembled matrices in the hp
* finite element method, there may be different finite elements on different
* cells, and consequently one may also want to use different quadrature
* formulas for different cells. On the other hand, the ::FEValues efficiently
* handles pre-evaluating whatever information is necessary for a single
* finite element and quadrature object. This class brings these concepts
* together: it provides a "collection" of ::FEValues objects.
*
* Upon construction, one passes not one finite element and quadrature object
* (and possible a mapping), but a whole collection of type hp::FECollection
* and hp::QCollection. Later on, when one sits on a concrete cell, one would
* call the reinit() function for this particular cell, just as one does for a
* regular ::FEValues object. The difference is that this time, the reinit()
* function looks up the active_fe_index of that cell, if necessary creates a
* ::FEValues object that matches the finite element and quadrature formulas
* with that particular index in their collections, and then re-initializes it
* for the current cell. The ::FEValues object that then fits the finite
* element and quadrature formula for the current cell can then be accessed
* using the get_present_fe_values() function, and one would work with it just
* like with any ::FEValues object for non-hp DoF handler objects.
*
* The reinit() functions have additional arguments with default values. If
* not specified, the function takes the index into the hp::FECollection,
* hp::QCollection, and hp::MappingCollection objects from the active_fe_index
* of the cell, as explained above. However, one can also select different
* indices for a current cell. For example, by specifying a different index
* into the hp::QCollection class, one does not need to sort the quadrature
* objects in the quadrature collection so that they match one-to-one the
* order of finite element objects in the FE collection (even though choosing
* such an order is certainly convenient).
*
* Note that ::FEValues objects are created on the fly, i.e. only as they are
* needed. This ensures that we do not create objects for every combination of
* finite element, quadrature formula and mapping, but only those that will
* actually be needed.
*
* This class has not yet been implemented for the use in the codimension
* one case (<tt>spacedim != dim </tt>).
*
* @ingroup hp hpcollection
* @author Wolfgang Bangerth, 2003
*/
template <int dim, int spacedim=dim>
class FEValues : public internal::hp::FEValuesBase<dim,dim,dealii::FEValues<dim,spacedim> >
{
public:
static const unsigned int dimension = dim;
static const unsigned int space_dimension = spacedim;
/**
* Constructor. Initialize this
* object with the given
* parameters.
*
* The finite element
* collection parameter is
* actually ignored, but is in
* the signature of this
* function to make it
* compatible with the
* signature of the respective
* constructor of the usual
* FEValues object, with
* the respective parameter in
* that function also being the
* return value of the
* <tt>DoFHandler::get_fe()</tt>
* function.
*/
FEValues (const dealii::hp::MappingCollection<dim,spacedim> &mapping_collection,
const dealii::hp::FECollection<dim,spacedim> &fe_collection,
const dealii::hp::QCollection<dim> &q_collection,
const UpdateFlags update_flags);
/**
* Constructor. Initialize this
* object with the given
* parameters, and choose a
* @p MappingQ1 object for the
* mapping object.
*
* The finite element
* collection parameter is
* actually ignored, but is in
* the signature of this
* function to make it
* compatible with the
* signature of the respective
* constructor of the usual
* FEValues object, with
* the respective parameter in
* that function also being the
* return value of the
* <tt>DoFHandler::get_fe()</tt>
* function.
*/
FEValues (const hp::FECollection<dim,spacedim> &fe_collection,
const hp::QCollection<dim> &q_collection,
const UpdateFlags update_flags);
/**
* Reinitialize the object for
* the given cell.
*
* After the call, you can get
* an FEValues object using the
* get_present_fe_values()
* function that corresponds to
* the present cell. For this
* FEValues object, we use the
* additional arguments
* described below to determine
* which finite element,
* mapping, and quadrature
* formula to use. They are
* order in such a way that the
* arguments one may want to
* change most frequently come
* first. The rules for these
* arguments are as follows:
*
* If the @p fe_index argument
* to this function is left at
* its default value, then we
* use that finite element
* within the hp::FECollection
* passed to the constructor of
* this class with index given
* by
* <code>cell-@>active_fe_index()</code>. Consequently,
* the hp::FECollection
* argument given to this
* object should really be the
* same as that used in the
* construction of the
* hp::DofHandler associated
* with the present cell. On
* the other hand, if a value
* is given for this argument,
* it overrides the choice of
* <code>cell-@>active_fe_index()</code>.
*
* If the @p q_index argument
* is left at its default
* value, then we use that
* quadrature formula within
* the hp::QCollection passed
* to the constructor of this
* class with index given by
* <code>cell-@>active_fe_index()</code>,
* i.e. the same index as that
* of the finite element. In
* this case, there should be a
* corresponding quadrature
* formula for each finite
* element in the
* hp::FECollection. As a
* special case, if the
* quadrature collection
* contains only a single
* element (a frequent case if
* one wants to use the same
* quadrature object for all
* finite elements in an hp
* discretization, even if that
* may not be the most
* efficient), then this single
* quadrature is used unless a
* different value for this
* argument is specified. On
* the other hand, if a value
* is given for this argument,
* it overrides the choice of
* <code>cell-@>active_fe_index()</code>
* or the choice for the single
* quadrature.
*
* If the @p mapping_index
* argument is left at its
* default value, then we use
* that mapping object within
* the hp::MappingCollection
* passed to the constructor of
* this class with index given
* by
* <code>cell-@>active_fe_index()</code>,
* i.e. the same index as that
* of the finite
* element. As above, if the
* mapping collection contains
* only a single element (a
* frequent case if one wants
* to use a MappingQ1 object
* for all finite elements in
* an hp discretization), then
* this single mapping is used
* unless a different value for
* this argument is specified.
*/
void
reinit (const typename hp::DoFHandler<dim,spacedim>::cell_iterator &cell,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* always returns zero for
* non-hp iterators, this
* function chooses the zero-th
* finite element, mapping, and
* quadrature object from the
* relevant constructions
* passed to the constructor of
* this object. The only
* exception is if you specify
* a value different from the
* default value for any of
* these last three arguments.
*/
void
reinit (const typename dealii::DoFHandler<dim,spacedim>::cell_iterator &cell,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* always returns zero for
* non-hp iterators, this
* function chooses the zero-th
* finite element, mapping, and
* quadrature object from the
* relevant constructions
* passed to the constructor of
* this object. The only
* exception is if you specify
* a value different from the
* default value for any of
* these last three arguments.
*/
void
reinit (const typename MGDoFHandler<dim,spacedim>::cell_iterator &cell,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* doesn't make sense for
* triangulation iterators,
* this function chooses the
* zero-th finite element,
* mapping, and quadrature
* object from the relevant
* constructions passed to the
* constructor of this
* object. The only exception
* is if you specify a value
* different from the default
* value for any of these last
* three arguments.
*/
void
reinit (const typename Triangulation<dim,spacedim>::cell_iterator &cell,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
};
/**
* This is the equivalent of the hp::FEValues class but for face integrations,
* i.e. it is to hp::FEValues what ::FEFaceValues is to ::FEValues.
*
* The same comments apply as in the documentation of the hp::FEValues
* class. However, it is important to note that it is here more common that
* one would want to explicitly specify an index to a particular quadrature
* formula in the reinit() functions. This is because the default index
* corresponds to the finite element index on the current function. On the
* other hand, integration on faces will typically have to happen with a
* quadrature formula that is adjusted to the finite elements used on both
* sides of a face. If one sorts the elements of the hp::FECollection with
* ascending polynomial degree, and matches these finite elements with
* corresponding quadrature formulas in the hp::QCollection passed to the
* constructor, then the quadrature index passed to the reinit() function
* should typically be something like <code>std::max
* (cell-@>active_fe_index(), neighbor-@>active_fe_index()</code> to ensure
* that a quadrature formula is chosen that is sufficiently accurate for
* <em>both</em> finite elements.
*
* @ingroup hp hpcollection
* @author Wolfgang Bangerth, 2003
*/
template <int dim>
class FEFaceValues : public internal::hp::FEValuesBase<dim,dim-1,dealii::FEFaceValues<dim> >
{
public:
/**
* Constructor. Initialize this
* object with the given
* parameters.
*
* The finite element
* collection parameter is
* actually ignored, but is in
* the signature of this
* function to make it
* compatible with the
* signature of the respective
* constructor of the usual
* FEValues object, with
* the respective parameter in
* that function also being the
* return value of the
* <tt>DoFHandler::get_fe()</tt>
* function.
*/
FEFaceValues (const hp::MappingCollection<dim> &mapping_collection,
const hp::FECollection<dim> &fe_collection,
const hp::QCollection<dim-1> &q_collection,
const UpdateFlags update_flags);
/**
* Constructor. Initialize this
* object with the given
* parameters, and choose a
* @p MappingQ1 object for the
* mapping object.
*
* The finite element
* collection parameter is
* actually ignored, but is in
* the signature of this
* function to make it
* compatible with the
* signature of the respective
* constructor of the usual
* FEValues object, with
* the respective parameter in
* that function also being the
* return value of the
* <tt>DoFHandler::get_fe()</tt>
* function.
*/
FEFaceValues (const hp::FECollection<dim> &fe_collection,
const hp::QCollection<dim-1> &q_collection,
const UpdateFlags update_flags);
/**
* Reinitialize the object for
* the given cell and face.
*
* After the call, you can get
* an FEFaceValues object using the
* get_present_fe_values()
* function that corresponds to
* the present cell. For this
* FEFaceValues object, we use the
* additional arguments
* described below to determine
* which finite element,
* mapping, and quadrature
* formula to use. They are
* order in such a way that the
* arguments one may want to
* change most frequently come
* first. The rules for these
* arguments are as follows:
*
* If the @p fe_index argument
* to this function is left at
* its default value, then we
* use that finite element
* within the hp::FECollection
* passed to the constructor of
* this class with index given
* by
* <code>cell-@>active_fe_index()</code>. Consequently,
* the hp::FECollection
* argument given to this
* object should really be the
* same as that used in the
* construction of the
* hp::DofHandler associated
* with the present cell. On
* the other hand, if a value
* is given for this argument,
* it overrides the choice of
* <code>cell-@>active_fe_index()</code>.
*
* If the @p q_index argument
* is left at its default
* value, then we use that
* quadrature formula within
* the hp::QCollection passed
* to the constructor of this
* class with index given by
* <code>cell-@>active_fe_index()</code>,
* i.e. the same index as that
* of the finite element. In
* this case, there should be a
* corresponding quadrature
* formula for each finite
* element in the
* hp::FECollection. As a
* special case, if the
* quadrature collection
* contains only a single
* element (a frequent case if
* one wants to use the same
* quadrature object for all
* finite elements in an hp
* discretization, even if that
* may not be the most
* efficient), then this single
* quadrature is used unless a
* different value for this
* argument is specified. On
* the other hand, if a value
* is given for this argument,
* it overrides the choice of
* <code>cell-@>active_fe_index()</code>
* or the choice for the single
* quadrature.
*
* If the @p mapping_index
* argument is left at its
* default value, then we use
* that mapping object within
* the hp::MappingCollection
* passed to the constructor of
* this class with index given
* by
* <code>cell-@>active_fe_index()</code>,
* i.e. the same index as that
* of the finite
* element. As above, if the
* mapping collection contains
* only a single element (a
* frequent case if one wants
* to use a MappingQ1 object
* for all finite elements in
* an hp discretization), then
* this single mapping is used
* unless a different value for
* this argument is specified.
*/
void
reinit (const typename hp::DoFHandler<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* always returns zero for
* non-hp iterators, this
* function chooses the zero-th
* finite element, mapping, and
* quadrature object from the
* relevant constructions
* passed to the constructor of
* this object. The only
* exception is if you specify
* a value different from the
* default value for any of
* these last three arguments.
*/
void
reinit (const typename dealii::DoFHandler<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* always returns zero for
* non-hp iterators, this
* function chooses the zero-th
* finite element, mapping, and
* quadrature object from the
* relevant constructions
* passed to the constructor of
* this object. The only
* exception is if you specify
* a value different from the
* default value for any of
* these last three arguments.
*/
void
reinit (const typename MGDoFHandler<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* doesn't make sense for
* triangulation iterators,
* this function chooses the
* zero-th finite element,
* mapping, and quadrature
* object from the relevant
* constructions passed to the
* constructor of this
* object. The only exception
* is if you specify a value
* different from the default
* value for any of these last
* three arguments.
*/
void
reinit (const typename Triangulation<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
};
/**
* This class implements for subfaces what hp::FEFaceValues does for
* faces. See there for further documentation.
*
* @ingroup hp hpcollection
* @author Wolfgang Bangerth, 2003
*/
template <int dim>
class FESubfaceValues : public internal::hp::FEValuesBase<dim,dim-1,dealii::FESubfaceValues<dim> >
{
public:
/**
* Constructor. Initialize this
* object with the given
* parameters.
*
* The finite element
* collection parameter is
* actually ignored, but is in
* the signature of this
* function to make it
* compatible with the
* signature of the respective
* constructor of the usual
* FEValues object, with
* the respective parameter in
* that function also being the
* return value of the
* <tt>DoFHandler::get_fe()</tt>
* function.
*/
FESubfaceValues (const hp::MappingCollection<dim> &mapping_collection,
const hp::FECollection<dim> &fe_collection,
const hp::QCollection<dim-1> &q_collection,
const UpdateFlags update_flags);
/**
* Constructor. Initialize this
* object with the given
* parameters, and choose a
* @p MappingQ1 object for the
* mapping object.
*
* The finite element
* collection parameter is
* actually ignored, but is in
* the signature of this
* function to make it
* compatible with the
* signature of the respective
* constructor of the usual
* FEValues object, with
* the respective parameter in
* that function also being the
* return value of the
* <tt>DoFHandler::get_fe()</tt>
* function.
*/
FESubfaceValues (const hp::FECollection<dim> &fe_collection,
const hp::QCollection<dim-1> &q_collection,
const UpdateFlags update_flags);
/**
* Reinitialize the object for
* the given cell, face, and subface.
*
* After the call, you can get
* an FESubfaceValues object using the
* get_present_fe_values()
* function that corresponds to
* the present cell. For this
* FESubfaceValues object, we use the
* additional arguments
* described below to determine
* which finite element,
* mapping, and quadrature
* formula to use. They are
* order in such a way that the
* arguments one may want to
* change most frequently come
* first. The rules for these
* arguments are as follows:
*
* If the @p q_index argument
* is left at its default
* value, then we use that
* quadrature formula within
* the hp::QCollection passed
* to the constructor of this
* class with index given by
* <code>cell-@>active_fe_index()</code>,
* i.e. the same index as that
* of the finite element. In
* this case, there should be a
* corresponding quadrature
* formula for each finite
* element in the
* hp::FECollection. As a
* special case, if the
* quadrature collection
* contains only a single
* element (a frequent case if
* one wants to use the same
* quadrature object for all
* finite elements in an hp
* discretization, even if that
* may not be the most
* efficient), then this single
* quadrature is used unless a
* different value for this
* argument is specified. On
* the other hand, if a value
* is given for this argument,
* it overrides the choice of
* <code>cell-@>active_fe_index()</code>
* or the choice for the single
* quadrature.
*
* If the @p mapping_index
* argument is left at its
* default value, then we use
* that mapping object within
* the hp::MappingCollection
* passed to the constructor of
* this class with index given
* by
* <code>cell-@>active_fe_index()</code>,
* i.e. the same index as that
* of the finite
* element. As above, if the
* mapping collection contains
* only a single element (a
* frequent case if one wants
* to use a MappingQ1 object
* for all finite elements in
* an hp discretization), then
* this single mapping is used
* unless a different value for
* this argument is specified.
*/
void
reinit (const typename hp::DoFHandler<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int subface_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* always returns zero for
* non-hp iterators, this
* function chooses the zero-th
* finite element, mapping, and
* quadrature object from the
* relevant constructions
* passed to the constructor of
* this object. The only
* exception is if you specify
* a value different from the
* default value for any of
* these last three arguments.
*/
void
reinit (const typename dealii::DoFHandler<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int subface_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* always returns zero for
* non-hp iterators, this
* function chooses the zero-th
* finite element, mapping, and
* quadrature object from the
* relevant constructions
* passed to the constructor of
* this object. The only
* exception is if you specify
* a value different from the
* default value for any of
* these last three arguments.
*/
void
reinit (const typename MGDoFHandler<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int subface_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
/**
* Like the previous function,
* but for non-hp
* iterators. The reason this
* (and the other non-hp
* iterator) function exists is
* so that one can use
* hp::FEValues not only for
* hp::DoFhandler objects, but
* for all sorts of DoFHandler
* objects, and triangulations
* not associated with
* DoFHandlers in general.
*
* Since
* <code>cell-@>active_fe_index()</code>
* doesn't make sense for
* triangulation iterators,
* this function chooses the
* zero-th finite element,
* mapping, and quadrature
* object from the relevant
* constructions passed to the
* constructor of this
* object. The only exception
* is if you specify a value
* different from the default
* value for any of these last
* three arguments.
*/
void
reinit (const typename Triangulation<dim>::cell_iterator &cell,
const unsigned int face_no,
const unsigned int subface_no,
const unsigned int q_index = numbers::invalid_unsigned_int,
const unsigned int mapping_index = numbers::invalid_unsigned_int,
const unsigned int fe_index = numbers::invalid_unsigned_int);
};
}
// -------------- inline and template functions --------------
namespace internal
{
namespace hp
{
template <int dim, int q_dim, class FEValues>
inline
const FEValues &
FEValuesBase<dim,q_dim,FEValues>::get_present_fe_values () const
{
return *fe_values_table(present_fe_values_index);
}
template <int dim, int q_dim, class FEValues>
inline
const dealii::hp::FECollection<dim,FEValues::space_dimension> &
FEValuesBase<dim,q_dim,FEValues>::get_fe_collection () const
{
return *fe_collection;
}
}
}
DEAL_II_NAMESPACE_CLOSE
#endif
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