dolfin team mailing list archive

[Kristian Ølgaard <k.b.oelgaard@xxxxxxxxx>]

On 7 June 2011 13:55, Chong Luo <luo.chong@xxxxxxxxx> wrote:
> Suppose we have a square domain. Is it possible to impose Dirichlet boundary conditions only on the 4 corners?

Have a look at dolfin/demo/undocumented/dg-advection-diffusion/cpp/main.cpp

  DirichletBC bc(V, g, boundary, "geometric");

replace "geometric" with "pointwise" and make sure that your SubDomain
is defined
in terms of geometry only, i.e., it shouldn't use the 'on_boundary'
variable in the
inside() function.

Kristian

> Thanks!
>
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