Function Dune::XT::Grid::sub_entity_center

template<int dim, class GridImp, template<int, int, class> class EntityImp, int cd = GridImp::dimension>
FieldVector<typename GridImp::ctype, GridImp::dimension> Dune::XT::Grid::sub_entity_center(const int element, const int codim, const size_t i)

Returns the center of the i-th sub-entity of the given codimension of an element.