On Wed, Jun 17, 2009 at 5:15 PM, Anders Logg<logg@xxxxxxxxx> wrote:
On Wed, Jun 17, 2009 at 03:32:03PM +0200, UFL wrote:
One or more new changesets pushed to the primary ufl repository.
A short summary of the last three changesets is included below.
changeset: 908:ef256e35e417096ae9b9d3a7e915e27e6971ae3f tag:
tip user: "Martin Sandve Alnæs <martinal@xxxxxxxxx>" date:
Wed Jun 17 15:32:01 2009 +0200 files:
test/newtests/test_demos/test_demos.py
test/newtests/test_elements/test_elements.py
test/newtests/test_exprbasics/test_construction.py
ufl/__init__.py ufl/exproperators.py ufl/finiteelement.py
ufl/function.py description: Added ElementRestriction class with
notation "Vr = V[dx(k)]".
What does this mean? What is V?
-- Anders
The restriction of a function space to a domain. Obviously the use of
the measure "dx" is an abuse of concepts, but it's convenient to
reuse it.
Consider:
V1 = FiniteElement("CG", cell, 1) V0 = FiniteElement("DG", cell, 0) V
= V1 + V0[ds(2)] u, lamda = TrialFunctions(V)
Here lamda lives only on boundary 2.
Of course, this is useless without support in the rest of FEniCS, so
it's only a proof of concept for input syntax.
Feel free to suggest alternative syntax and naming.
