/usr/include/deal.II/hp/q_collection.h is in libdeal.ii-dev 6.3.1-1.1.
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// $Id: q_collection.h 19894 2009-10-15 22:19:51Z kanschat $
// Version: $Name$
//
// Copyright (C) 2005, 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.
//
//---------------------------- q_collection.h ----------------------------
#ifndef __deal2__q_collection_h
#define __deal2__q_collection_h
#include <base/config.h>
#include <base/subscriptor.h>
#include <base/quadrature.h>
#include <base/memory_consumption.h>
#include <fe/fe.h>
#include <vector>
#include <base/std_cxx1x/shared_ptr.h>
DEAL_II_NAMESPACE_OPEN
namespace hp
{
/**
* This class implements a collection of quadrature objects in the same way as
* the hp::FECollection implements a collection of finite element classes.
*
* It implements the concepts stated in the @ref hpcollection module described
* in the doxygen documentation.
*
* @ingroup hp hpcollection
*
* @author Oliver Kayser-Herold, 2005
*/
template <int dim>
class QCollection : public Subscriptor
{
public:
/**
* Default constructor. Leads
* to an empty collection that
* can later be filled using
* push_back().
*/
QCollection ();
/**
* Conversion constructor. This
* constructor creates a
* QCollection from a single
* quadrature rule. More
* quadrature formulas can be
* added with push_back(), if
* desired, though it would
* probably be clearer to add
* all mappings the same way.
*/
explicit QCollection (const Quadrature<dim> &quadrature);
/**
* Copy constructor.
*/
QCollection (const QCollection<dim> &q_collection);
/**
* Adds a new quadrature rule
* to the QCollection. The
* quadrature rules have to be
* added in the same order as
* for the FECollection for
* which this quadrature rule
* collection is meant. Thus
* the reference to the
* quadrature rule for
* active_fe_index 0 has to be
* added first, followed by the
* quadrature rule for
* active_fe_index 1.
*
* This class creates a copy of
* the given quadrature object,
* i.e. you can do things like
* <tt>push_back(QGauss<dim>(3));</tt>. The
* internal copy is later
* destroyed by this object
* upon destruction of the
* entire collection.
*/
void push_back (const Quadrature<dim> &new_quadrature);
/**
* Returns a reference to the
* quadrature rule specified by the
* argument.
*
* @pre @p index must be between zero
* and the number of elements of the
* collection.
*/
const Quadrature<dim> &
operator[] (const unsigned int index) const;
/**
* Returns the number of
* quadrature pointers stored
* in this object.
*/
unsigned int size () const;
/**
* Return the maximum number of
* quadrature points over all
* the elements of the
* collection. This is mostly
* useful to initialize arrays
* to allocate the maxmimum
* amount of memory that may be
* used when re-sizing later on
* to a articular quadrature
* formula from within this
* collection.
*/
unsigned int max_n_quadrature_points () const;
/**
* Determine an estimate for the
* memory consumption (in bytes)
* of this object.
*/
unsigned int memory_consumption () const;
/**
* Exception
*/
DeclException0 (ExcNoQuadrature);
private:
/**
* The real container, which stores
* pointers to the different quadrature
* objects.
*/
std::vector<std_cxx1x::shared_ptr<const Quadrature<dim> > > quadratures;
};
/* --------------- inline functions ------------------- */
template <int dim>
inline
unsigned int
QCollection<dim>::size () const
{
return quadratures.size();
}
template <int dim>
inline
unsigned int
QCollection<dim>::max_n_quadrature_points () const
{
Assert (quadratures.size() > 0,
ExcMessage ("You can't call this function for an empty collection"));
unsigned int m = 0;
for (unsigned int i=0; i<quadratures.size(); ++i)
if (quadratures[i]->size() > m)
m = quadratures[i]->size();
return m;
}
template <int dim>
inline
const Quadrature<dim> &
QCollection<dim>::operator[] (const unsigned int index) const
{
Assert (index < quadratures.size (),
ExcIndexRange (index, 0, quadratures.size ()));
return *quadratures[index];
}
template <int dim>
inline
QCollection<dim>::QCollection ()
{}
template <int dim>
inline
QCollection<dim>::QCollection (const Quadrature<dim> &quadrature)
{
quadratures
.push_back (std_cxx1x::shared_ptr<const Quadrature<dim> >(new Quadrature<dim>(quadrature)));
}
template <int dim>
inline
QCollection<dim>::
QCollection (const QCollection<dim> &q_collection)
:
Subscriptor (),
// copy the array
// of shared
// pointers. nothing
// bad should
// happen -- they
// simply all point
// to the same
// objects, and the
// last one to die
// will delete the
// mappings
quadratures (q_collection.quadratures)
{}
template <int dim>
inline
unsigned int
QCollection<dim>::memory_consumption () const
{
return (sizeof(*this) +
MemoryConsumption::memory_consumption (quadratures));
}
template <int dim>
inline
void
QCollection<dim>::push_back (const Quadrature<dim> &new_quadrature)
{
quadratures
.push_back (std_cxx1x::shared_ptr<const Quadrature<dim> >(new Quadrature<dim>(new_quadrature)));
}
} // namespace hp
DEAL_II_NAMESPACE_CLOSE
#endif
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