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Tue, Nov 5, 06:49

dumper_element_iterator.hh
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/**
* @file dumper_element_iterator.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Tue Sep 02 2014
* @date last modification: Sun Dec 03 2017
*
* @brief Iterators for elemental fields
*
*
* Copyright (©) 2014-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can 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 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef AKANTU_DUMPER_ELEMENT_ITERATOR_HH_
#define AKANTU_DUMPER_ELEMENT_ITERATOR_HH_
/* -------------------------------------------------------------------------- */
#include "element.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
namespace dumpers {
/* -------------------------------------------------------------------------- */
template <class types, template <class> class final_iterator>
class element_iterator {
/* ------------------------------------------------------------------------ */
/* Typedefs */
/* ------------------------------------------------------------------------ */
public:
using it_type = typename types::it_type;
using field_type = typename types::field_type;
using array_type = typename types::array_type;
using array_iterator = typename types::array_iterator;
using iterator = final_iterator<types>;
public:
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
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)
: field(field), tit(t_it), tit_end(t_it_end), array_it(array_it),
array_it_end(array_it_end), ghost_type(ghost_type) {}
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
bool operator!=(const iterator & it) const {
return (ghost_type != it.ghost_type) ||
(tit != it.tit || (array_it != it.array_it));
}
iterator & operator++() {
++array_it;
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.size() * 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() { return *tit; }
UInt element_type() { return getIOHelperType(*tit); }
Element getCurrentElement() {
return Element{*tit, array_it.getCurrentIndex(), _not_ghost};
}
UInt getNbDataPerElem(ElementType type) const {
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) {
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;
};
/* -------------------------------------------------------------------------- */
template <typename types>
class elemental_field_iterator
: public element_iterator<types, elemental_field_iterator> {
public:
/* ------------------------------------------------------------------------ */
/* Typedefs */
/* ------------------------------------------------------------------------ */
using parent =
element_iterator<types, ::akantu::dumpers::elemental_field_iterator>;
using it_type = typename types::it_type;
using return_type = typename types::return_type;
using field_type = typename types::field_type;
using array_iterator = typename types::array_iterator;
public:
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
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)
: parent(field, t_it, t_it_end, array_it, array_it_end, ghost_type) {}
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
return_type operator*() { return *this->array_it; }
private:
};
/* -------------------------------------------------------------------------- */
} // namespace dumpers
} // namespace akantu
/* -------------------------------------------------------------------------- */
#endif /* AKANTU_DUMPER_ELEMENT_ITERATOR_HH_ */

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