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node_filter.hh
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/**
* @file node_filter.hh
*
* @author David Simon Kammer <david.kammer@epfl.ch>
*
* @date creation: Tue Dec 02 2014
* @date last modification: Tue Feb 20 2018
*
* @brief to filter nodes with functors
*
*
* Copyright (©) 2015-2018 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 AST_NODE_FILTER_HH_
#define AST_NODE_FILTER_HH_
/* -------------------------------------------------------------------------- */
// akantu
#include "aka_common.hh"
#include "mesh_filter.hh"
namespace akantu {
/* -------------------------------------------------------------------------- */
class GeometryFilter : public NodeFilterFunctor {
public:
GeometryFilter(const Mesh & mesh, UInt dir, Real limit)
: NodeFilterFunctor(), mesh(mesh), dir(dir), limit(limit) {
this->positions = &(mesh.getNodes());
};
~GeometryFilter(){};
bool operator()(UInt node) { AKANTU_TO_IMPLEMENT(); };
protected:
const Mesh & mesh;
UInt dir;
Real limit;
const Array<Real> * positions;
};
/* -------------------------------------------------------------------------- */
class FilterPositionsGreaterThan : public GeometryFilter {
public:
FilterPositionsGreaterThan(const Mesh & mesh, UInt dir, Real limit)
: GeometryFilter(mesh, dir, limit){};
~FilterPositionsGreaterThan(){};
bool operator()(UInt node) {
AKANTU_DEBUG_IN();
bool to_filter = true;
if ((*this->positions)(node, this->dir) > this->limit)
to_filter = false;
AKANTU_DEBUG_OUT();
return to_filter;
};
};
/* -------------------------------------------------------------------------- */
class FilterPositionsLessThan : public GeometryFilter {
public:
FilterPositionsLessThan(const Mesh & mesh, UInt dir, Real limit)
: GeometryFilter(mesh, dir, limit){};
~FilterPositionsLessThan(){};
bool operator()(UInt node) {
AKANTU_DEBUG_IN();
bool to_filter = true;
if ((*this->positions)(node, this->dir) < this->limit)
to_filter = false;
AKANTU_DEBUG_OUT();
return to_filter;
};
};
/* -------------------------------------------------------------------------- */
// this filter is erase because the convention of filter has changed!!
// filter == true -> keep node
// template<class FilterType>
// void applyNodeFilter(Array<UInt> & nodes, FilterType & filter) {
// Array<UInt>::iterator<> it = nodes.begin();
// for (; it != nodes.end(); ++it) {
// if (filter(*it)) {
// it = nodes.erase(it);
// }
// }
// };
} // namespace akantu
#endif /* AST_NODE_FILTER_HH_ */

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