dolfin team mailing list archive

["Martin Sandve Alnæs" <martinal@xxxxxxxxx>]

2008/6/6 Johan Hake <hake@xxxxxxxxx>:
> On Friday 06 June 2008 13:19:54 Martin Sandve Alnæs wrote:
>> Say I have a form
>>
>> a = u*v*dx + f*v*ds
>
> Isn't it possible to do
>
> a = u*v*dx + f0*v*ds0 + f1*v*ds1
>
> Johan

Sure, but my forms are more complicated than that,
and it would add to the compilation time for the forms.
I guess I could hack in a feature in SFC to reuse an
integral without this cost, but I still think this should be
possible to do from within dolfin given an existing UFC form.

-- 
Martin


>> and want to assemble a matrix with f being a
>> function f0 at subdomain 0 and f1 at subdomain 1.
>> Maybe f0 is a discrete function and f1 a user function.
>> I don't think this is possible in dolfin today?
>> What would be the best way to go about this?
>>
>> --
>> Martin
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>
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