/usr/include/deal.II/fe/fe_poly_face.templates.h is in libdeal.ii-dev 8.1.0-4.
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// $Id: fe_poly_face.templates.h 30036 2013-07-18 16:55:32Z maier $
//
// Copyright (C) 2009 - 2013 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------
#include <deal.II/base/qprojector.h>
#include <deal.II/base/polynomial_space.h>
#include <deal.II/fe/fe_values.h>
#include <deal.II/fe/fe_poly_face.h>
DEAL_II_NAMESPACE_OPEN
template <class POLY, int dim, int spacedim>
FE_PolyFace<POLY,dim,spacedim>::FE_PolyFace (
const POLY &poly_space,
const FiniteElementData<dim> &fe_data,
const std::vector<bool> &restriction_is_additive_flags):
FiniteElement<dim,spacedim> (fe_data,
restriction_is_additive_flags,
std::vector<ComponentMask> (1, ComponentMask(1,true))),
poly_space(poly_space)
{
AssertDimension(dim, POLY::dimension+1);
}
template <class POLY, int dim, int spacedim>
unsigned int
FE_PolyFace<POLY,dim,spacedim>::get_degree () const
{
return this->degree;
}
//---------------------------------------------------------------------------
// Auxiliary functions
//---------------------------------------------------------------------------
template <class POLY, int dim, int spacedim>
UpdateFlags
FE_PolyFace<POLY,dim,spacedim>::update_once (const UpdateFlags) const
{
// for this kind of elements, only
// the values can be precomputed
// once and for all. set this flag
// if the values are requested at
// all
return update_default;
}
template <class POLY, int dim, int spacedim>
UpdateFlags
FE_PolyFace<POLY,dim,spacedim>::update_each (const UpdateFlags flags) const
{
UpdateFlags out = flags & update_values;
if (flags & update_gradients)
out |= update_gradients | update_covariant_transformation;
if (flags & update_hessians)
out |= update_hessians | update_covariant_transformation;
if (flags & update_cell_normal_vectors)
out |= update_cell_normal_vectors | update_JxW_values;
return out;
}
//---------------------------------------------------------------------------
// Data field initialization
//---------------------------------------------------------------------------
template <class POLY, int dim, int spacedim>
typename Mapping<dim,spacedim>::InternalDataBase *
FE_PolyFace<POLY,dim,spacedim>::get_data (
const UpdateFlags,
const Mapping<dim,spacedim> &,
const Quadrature<dim> &) const
{
InternalData *data = new InternalData;
return data;
}
template <class POLY, int dim, int spacedim>
typename Mapping<dim,spacedim>::InternalDataBase *
FE_PolyFace<POLY,dim,spacedim>::get_face_data (
const UpdateFlags update_flags,
const Mapping<dim,spacedim> &,
const Quadrature<dim-1>& quadrature) const
{
// generate a new data object and
// initialize some fields
InternalData *data = new InternalData;
// check what needs to be
// initialized only once and what
// on every cell/face/subface we
// visit
data->update_once = update_once(update_flags);
data->update_each = update_each(update_flags);
data->update_flags = data->update_once | data->update_each;
const UpdateFlags flags(data->update_flags);
const unsigned int n_q_points = quadrature.size();
// some scratch arrays
std::vector<double> values(0);
std::vector<Tensor<1,dim-1> > grads(0);
std::vector<Tensor<2,dim-1> > grad_grads(0);
// initialize fields only if really
// necessary. otherwise, don't
// allocate memory
if (flags & update_values)
{
values.resize (poly_space.n());
data->shape_values.resize (poly_space.n(),
std::vector<double> (n_q_points));
for (unsigned int i=0; i<n_q_points; ++i)
{
poly_space.compute(quadrature.point(i),
values, grads, grad_grads);
for (unsigned int k=0; k<poly_space.n(); ++k)
data->shape_values[k][i] = values[k];
}
}
// No derivatives of this element
// are implemented.
if (flags & update_gradients || flags & update_hessians)
{
Assert(false, ExcNotImplemented());
}
return data;
}
template <class POLY, int dim, int spacedim>
typename Mapping<dim,spacedim>::InternalDataBase *
FE_PolyFace<POLY,dim,spacedim>::get_subface_data (
const UpdateFlags flags,
const Mapping<dim,spacedim> &mapping,
const Quadrature<dim-1>& quadrature) const
{
return get_face_data (flags, mapping,
QProjector<dim-1>::project_to_all_children(quadrature));
}
//---------------------------------------------------------------------------
// Fill data of FEValues
//---------------------------------------------------------------------------
template <class POLY, int dim, int spacedim>
void
FE_PolyFace<POLY,dim,spacedim>::fill_fe_values
(const Mapping<dim,spacedim> &,
const typename Triangulation<dim,spacedim>::cell_iterator &,
const Quadrature<dim> &,
typename Mapping<dim,spacedim>::InternalDataBase &,
typename Mapping<dim,spacedim>::InternalDataBase &,
FEValuesData<dim,spacedim> &,
CellSimilarity::Similarity &) const
{
// Do nothing, since we do not have
// values in the interior
}
template <class POLY, int dim, int spacedim>
void
FE_PolyFace<POLY,dim,spacedim>::fill_fe_face_values (
const Mapping<dim,spacedim> &,
const typename Triangulation<dim,spacedim>::cell_iterator &,
const unsigned int face,
const Quadrature<dim-1>& quadrature,
typename Mapping<dim,spacedim>::InternalDataBase &,
typename Mapping<dim,spacedim>::InternalDataBase &fedata,
FEValuesData<dim,spacedim> &data) const
{
// convert data object to internal
// data for this class. fails with
// an exception if that is not
// possible
Assert (dynamic_cast<InternalData *> (&fedata) != 0, ExcInternalError());
InternalData &fe_data = static_cast<InternalData &> (fedata);
const UpdateFlags flags(fe_data.update_once | fe_data.update_each);
const unsigned int foffset = fe_data.shape_values.size() * face;
if (flags & update_values)
for (unsigned int i=0; i<quadrature.size(); ++i)
{
for (unsigned int k=0; k<this->dofs_per_cell; ++k)
data.shape_values(k,i) = 0.;
for (unsigned int k=0; k<fe_data.shape_values.size(); ++k)
data.shape_values(foffset+k,i) = fe_data.shape_values[k][i];
}
}
template <class POLY, int dim, int spacedim>
void
FE_PolyFace<POLY,dim,spacedim>::fill_fe_subface_values (
const Mapping<dim,spacedim> &,
const typename Triangulation<dim,spacedim>::cell_iterator &,
const unsigned int face,
const unsigned int subface,
const Quadrature<dim-1>& quadrature,
typename Mapping<dim,spacedim>::InternalDataBase &,
typename Mapping<dim,spacedim>::InternalDataBase &fedata,
FEValuesData<dim,spacedim> &data) const
{
// convert data object to internal
// data for this class. fails with
// an exception if that is not
// possible
Assert (dynamic_cast<InternalData *> (&fedata) != 0, ExcInternalError());
InternalData &fe_data = static_cast<InternalData &> (fedata);
const UpdateFlags flags(fe_data.update_once | fe_data.update_each);
const unsigned int foffset = fe_data.shape_values.size() * face;
const unsigned int offset = subface*quadrature.size();
if (flags & update_values)
for (unsigned int i=0; i<quadrature.size(); ++i)
{
for (unsigned int k=0; k<this->dofs_per_cell; ++k)
data.shape_values(k,i) = 0.;
for (unsigned int k=0; k<fe_data.shape_values.size(); ++k)
data.shape_values(foffset+k,i) = fe_data.shape_values[k][i+offset];
}
Assert (!(flags & update_gradients), ExcNotImplemented());
Assert (!(flags & update_hessians), ExcNotImplemented());
}
DEAL_II_NAMESPACE_CLOSE
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