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element_class_helper.hh
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Thu, Dec 5, 01:12

element_class_helper.hh
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#ifndef ELEMENT_CLASS_HELPER_HH
#define ELEMENT_CLASS_HELPER_HH
#include "element_class.hh"
namespace akantu {
/* -------------------------------------------------------------------------- */
template <ElementKind kind> class ElementClassHelper {};
/* -------------------------------------------------------------------------- */
template <> class ElementClassHelper<_ek_regular> {
public:
static inline Vector<Real> getN(const Vector<Real> & natural_coords,
ElementType type) {
#define GET_SHAPE_NATURAL(type) \
auto nb_nodes_per_element = ElementClass<type>::getNbNodesPerElement(); \
Vector<Real> shapes(nb_nodes_per_element); \
ElementClass<type>::computeShapes(natural_coords, shapes); \
return shapes
AKANTU_BOOST_REGULAR_ELEMENT_SWITCH(GET_SHAPE_NATURAL);
#undef GET_SHAPE_NATURAL
return Vector<Real>(0);
}
/* ------------------------------------------------------------------------ */
static inline Matrix<Real> getDNDS(const Vector<Real> & natural_coords,
ElementType type) {
#define GET_DNDS_NATURAL(type) \
auto nb_nodes_per_element = ElementClass<type>::getNbNodesPerElement(); \
Matrix<Real> dnds(natural_coords.size(), nb_nodes_per_element); \
ElementClass<type>::computeDNDS(natural_coords, dnds); \
return dnds
AKANTU_BOOST_REGULAR_ELEMENT_SWITCH(GET_DNDS_NATURAL);
#undef GET_DNDS_NATURAL
return Matrix<Real>(0, 0);
}
/* ------------------------------------------------------------------------ */
static inline Matrix<Real> getD2NDS2(const Vector<Real> & natural_coords,
ElementType type) {
#define GET_D2ND2S_NATURAL(type) \
auto nb_nodes_per_element = ElementClass<type>::getNbNodesPerElement(); \
auto dim = natural_coords.size(); \
Matrix<Real> d2nds2(dim * dim, nb_nodes_per_element); \
ElementClass<type>::computeD2NDS2(natural_coords, d2nds2); \
return d2nds2
AKANTU_BOOST_REGULAR_ELEMENT_SWITCH(GET_D2ND2S_NATURAL);
#undef GET_D2NDS2_NATURAL
return Matrix<Real>(0, 0);
}
/* ------------------------------------------------------------------------ */
static inline Matrix<Real> getJMat(const Vector<Real> & natural_coords,
const Matrix<Real> & positions,
ElementType type) {
#define GET_JMAT_NATURAL(type) \
auto nb_nodes_per_element = ElementClass<type>::getNbNodesPerElement(); \
Matrix<Real> dnds(natural_coords.size(), nb_nodes_per_element); \
Matrix<Real> jmat(dnds.rows(), positions.rows()); \
ElementClass<type>::computeDNDS(natural_coords, dnds); \
ElementClass<type>::computeJMat(dnds, positions, jmat); \
return jmat
AKANTU_BOOST_REGULAR_ELEMENT_SWITCH(GET_JMAT_NATURAL);
#undef GET_JMAT_NATURAL
return Matrix<Real>(0, 0);
}
};
} // namespace akantu
#endif // ELEMENT_CLASS_HELPER_H

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