On Thu, Jun 23, 2011 at 03:00:45PM +0200, Neilen Marais wrote: > Hi, > > I'm calculating a surface interpolation in a 3D space by using > DirichletBC. I'm using Nedelec tet elements. The mechanics are exactly > the same as for specifying a non-homogenous Dirichlet BC, except that > I am calling it over and over inside a loop to post-process electric > near-fields into far-field quantities. Hence, it is somewhat > performance critical. > > IOW, I do: > > V = dolfin.FunctionSpace(...) > u = dolfin.Function(V) > bc = dolfin.DirichletBC(V, BC_expr) > bc.apply(u.vector()) > > I would just like to know how bc.apply() goes about approximating > BC_expr. Does it take the estimated degree of BC_expr into account, or > does it only take the degree of V into account? And is there any way > to control this?
It only depends on the dofs of V. For each degree of freedom of V, it evaluates that degree of freedom on your expression. -- Anders _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : [email protected] Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
