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rAKA/extra_packages/igfem/src/integrator_gauss_igfem.hh
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integrator_gauss_igfem.hh
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/**
* @file integrator_gauss_igfem.hh
*
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
*
*
* @brief Gauss integration facilities for IGFEM
*
*
* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
*/
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_INTEGRATOR_IGFEM_HH_
#define AKANTU_INTEGRATOR_IGFEM_HH_
/* -------------------------------------------------------------------------- */
#include "integrator.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
template <class IOF> class IntegratorGauss<_ek_igfem, IOF> : public Integrator {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
IntegratorGauss(const Mesh & mesh, const ID & id = "integrator_gauss");
virtual ~IntegratorGauss(){};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
inline void initIntegrator(const Array<Real> & nodes,
ElementType type,
GhostType ghost_type);
/// precompute jacobians on elements of type "type"
template <ElementType type>
void precomputeJacobiansOnQuadraturePoints(const Array<Real> & nodes,
GhostType ghost_type);
/// integrate f on the element "elem" of type "type"
template <ElementType type>
inline void integrateOnElement(const Array<Real> & f, Real * intf,
UInt nb_degree_of_freedom, UInt elem,
GhostType ghost_type) const;
/// integrate f for all elements of type "type"
template <ElementType type>
void integrate(const Array<Real> & in_f, Array<Real> & intf,
UInt nb_degree_of_freedom, GhostType ghost_type,
const Array<UInt> & filter_elements) const;
/// integrate one element scalar value on all elements of type "type"
template <ElementType type>
Real integrate(const Vector<Real> & in_f, UInt index,
GhostType ghost_type) const;
/// integrate scalar field in_f
template <ElementType type>
Real integrate(const Array<Real> & in_f, GhostType ghost_type,
const Array<UInt> & filter_elements) const;
/// integrate partially around a quadrature point (@f$ intf_q = f_q * J_q *
/// w_q @f$)
template <ElementType type>
void integrateOnIntegrationPoints(const Array<Real> & in_f,
Array<Real> & intf,
UInt nb_degree_of_freedom,
GhostType ghost_type,
const Array<UInt> & filter_elements) const;
/// return a vector with quadrature points natural coordinates
template <ElementType type>
const Matrix<Real> & getIntegrationPoints(GhostType ghost_type) const;
/// return the number of quadrature points for a given element type
template <ElementType type>
inline UInt
getNbIntegrationPoints(GhostType ghost_type = _not_ghost) const;
/// compute the vector of quadrature points natural coordinates
template <ElementType type>
void computeQuadraturePoints(GhostType ghost_type);
/// check that the jacobians are not negative
template <ElementType type>
void checkJacobians(GhostType ghost_type) const;
public:
/// compute the jacobians on quad points for a given element
template <ElementType type>
void computeJacobianOnQuadPointsByElement(const Matrix<Real> & node_coords,
Vector<Real> & jacobians);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
inline void integrate(Real * f, Real * jac, Real * inte,
UInt nb_degree_of_freedom,
UInt nb_quadrature_points) const;
private:
ElementTypeMap<Matrix<Real>> quadrature_points;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "integrator_gauss_igfem_inline_impl.hh"
} // namespace akantu
#endif /*AKANTU_INTEGRATOR_IGFEM_HH_ */
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
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