pack_ny

Compute outward surface normal at Pi(x)

Input

• origin_meshtag - surface on which to integrate
• gap - gap function Pi(x) - x packed at quadrature points

Output

• normals ny packed on facets

Member variables accessed

• _marker-> mesh() - the underlying mesh
• _V->element() - the finite element
• _facet_maps
• _qp_phys
• _qp_ref_facet -