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integrator_gauss.hh
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/**
* @file integrator_gauss.hh
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @date Thu Feb 10 16:42:34 2011
*
* @brief Gauss integration facilities
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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_INTEGRATOR_GAUSS_HH__
#define __AKANTU_INTEGRATOR_GAUSS_HH__
/* -------------------------------------------------------------------------- */
#include "integrator.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_AKANTU__
class IntegratorGauss : public Integrator {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
IntegratorGauss(Mesh & mesh, IntegratorID id="IntegratorGauss");
virtual ~IntegratorGauss(){};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// precompute jacobians on elements of type "type"
template <ElementType type>
void precomputeJacobiansOnQuadraturePoints(GhostType ghost_type);
/// integrate f on the element "elem" of type "type"
template <ElementType type>
inline void integrateOnElement(const Vector<Real> & f,
Real * intf,
UInt nb_degre_of_freedom,
const UInt elem,
GhostType ghost_type) const;
/// integrate f for all elements of type "type"
template <ElementType type>
void integrate(const Vector<Real> & in_f,
Vector<Real> &intf,
UInt nb_degre_of_freedom,
GhostType ghost_type,
const Vector<UInt> * filter_elements) const;
/// integrate scalar field in_f
template <ElementType type>
Real integrate(const Vector<Real> & in_f,
GhostType ghost_type,
const Vector<UInt> * filter_elements) const;
/// return a vector with quadrature points natural coordinates
template <ElementType type> Vector<Real> & getQuadraturePoints() const;
/// compute the vector of quadrature points natural coordinates
template <ElementType type> void computeQuadraturePoints();
/// check that the jacobians are not negative
template <ElementType type> void checkJacobians(GhostType ghost_type);
protected:
/// compute the jacobians on quad points for a given element
template <ElementType type>
void computeJacobianOnQuadPointsByElement(UInt spatial_dimension,
Real * node_coords,
UInt nb_nodes_per_element,
Real * jacobians);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
private:
public:
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
inline void integrate(Real *f, Real *jac, Real * inte,
UInt nb_degre_of_freedom,
UInt nb_quadrature_points) const;
ByElementTypeReal quadrature_points;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "integrator_gauss_inline_impl.cc"
__END_AKANTU__
#endif /* __AKANTU_INTEGRATOR_GAUSS_HH__ */

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