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rAKA/extra_packages/igfem/src/dumper_igfem_element_iterator.hh
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dumper_igfem_element_iterator.hh
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/**
* @file dumper_igfem_element_iterator.hh
*
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
*
*
* @brief Iterators for IGFEM elemental fields
*
*
* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
*/
#ifndef AKANTU_DUMPER_IGFEM_ELEMENT_ITERATOR_HH_
#define AKANTU_DUMPER_IGFEM_ELEMENT_ITERATOR_HH_
/* -------------------------------------------------------------------------- */
#include "element.hh"
#include "igfem_helper.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
namespace dumpers {
/* -------------------------------------------------------------------------- */
template <class types, template <class> class final_iterator>
class igfem_element_iterator {
/* ------------------------------------------------------------------------ */
/* Typedefs */
/* ------------------------------------------------------------------------ */
public:
typedef typename types::it_type it_type;
typedef typename types::field_type field_type;
typedef typename types::array_type array_type;
typedef typename types::array_iterator array_iterator;
typedef final_iterator<types> iterator;
public:
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
igfem_element_iterator(const field_type & field,
const typename field_type::type_iterator & t_it,
const typename field_type::type_iterator & t_it_end,
const array_iterator & array_it,
const array_iterator & array_it_end,
const GhostType ghost_type = _not_ghost,
UInt sub_element = 0)
: field(field), tit(t_it), tit_end(t_it_end), array_it(array_it),
array_it_end(array_it_end), ghost_type(ghost_type),
sub_element(sub_element) {}
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
bool operator!=(const iterator & it) const {
return (ghost_type != it.ghost_type) ||
(tit != it.tit ||
((array_it != it.array_it) || sub_element != it.sub_element));
}
iterator & operator++() {
if (!this->sub_element)
this->sub_element += 1;
else {
++array_it;
this->sub_element = 0;
while (array_it == array_it_end && tit != tit_end) {
++tit;
if (tit != tit_end) {
const array_type & vect = field(*tit, ghost_type);
UInt _nb_data_per_elem = getNbDataPerElem(*tit);
UInt nb_component = vect.getNbComponent();
UInt size = (vect.getSize() * nb_component) / _nb_data_per_elem;
array_it = vect.begin_reinterpret(_nb_data_per_elem, size);
array_it_end = vect.end_reinterpret(_nb_data_per_elem, size);
}
}
}
return *(static_cast<iterator *>(this));
}
ElementType getType() {
ElementType sub_type = IGFEMHelper::getSubElementType(*tit, sub_element);
return sub_type;
}
/// get IOHelperType for sub-element
UInt element_type() { return getIOHelperType(this->getType()); }
/// get current parent element????
Element getCurrentElement() {
return Element(*tit, array_it.getCurrentIndex());
}
UInt getNbDataPerElem(ElementType type) const {
/// nb of data per parent element!
if (!nb_data_per_elem.exists(type, ghost_type))
return field(type, ghost_type).getNbComponent();
return nb_data_per_elem(type, ghost_type);
}
void setNbDataPerElem(const ElementTypeMap<UInt> & nb_data) {
/// nb of data per parent element!
this->nb_data_per_elem = nb_data;
}
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
/// the field to iterate on
const field_type & field;
/// field iterator
typename field_type::type_iterator tit;
/// field iterator end
typename field_type::type_iterator tit_end;
/// array iterator
array_iterator array_it;
/// internal iterator end
array_iterator array_it_end;
/// ghost type identification
const GhostType ghost_type;
/// number of data per element
ElementTypeMap<UInt> nb_data_per_elem;
/// index of sub-element
UInt sub_element;
/// sub_element end
UInt sub_element_end;
};
/* -------------------------------------------------------------------------- */
template <typename types>
class igfem_elemental_field_iterator
: public igfem_element_iterator<types, igfem_elemental_field_iterator> {
public:
/* ------------------------------------------------------------------------ */
/* Typedefs */
/* ------------------------------------------------------------------------ */
typedef igfem_element_iterator<
types, ::akantu::dumpers::igfem_elemental_field_iterator>
parent;
typedef typename types::it_type it_type;
typedef typename types::return_type return_type;
typedef typename types::field_type field_type;
typedef typename types::array_iterator array_iterator;
public:
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
igfem_elemental_field_iterator(
const field_type & field, const typename field_type::type_iterator & t_it,
const typename field_type::type_iterator & t_it_end,
const array_iterator & array_it, const array_iterator & array_it_end,
const GhostType ghost_type = _not_ghost, UInt sub_element = 0)
: parent(field, t_it, t_it_end, array_it, array_it_end, ghost_type,
sub_element) {}
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
return_type operator*() { return *this->array_it; }
private:
};
/* -------------------------------------------------------------------------- */
} // namespace dumpers
} // namespace akantu
/* -------------------------------------------------------------------------- */
#endif /* AKANTU_DUMPER_IGFEM_ELEMENT_ITERATOR_HH_ */
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