On Wed, 15 Sep 2010, Roy Stogner wrote:
> On Wed, 15 Sep 2010, Tim Kroeger wrote:
>
>> On Tue, 14 Sep 2010, Roy Stogner wrote:
>>
>>> Are you looking at just all elements which have a shape function
>>> associated with this DoF, or are you also including every element
>>> which supports an associated basis function? In the former case it's
>>> enough to find elements which point to this DoF's node; in the latter
>>> case in an adapted mesh you've also got to check for other DoFs which
>>> are constrained by this one.
>>
>> Good point, I didn't think of this. I'll try to sort things in my brain
>> and see which of these is what I want. I see that in the latter case, I
>> can use DofMap::constrain_nothing() to get the correct dof list, right?
>
> I don't think so. Suppose there's one hanging node where DoF 10 is
> constrained in terms of DoFs 3 and 4, and another where DoF 15 is
> constrained in terms of DoFs 5 and 3. DoFMap::constrain_nothing({10})
> will give you {10,3,4}, but what you'd want to be able to do is go from
> {3} to {3,10,15}. I don't think there's anything in the library that
> does that right now.
Yes, but I meant when creating the cache. That is, I can then do it
the other war round. If DoF 10 is contained in the given element of
subdomain 42, I get {10,3,4}, so that in particular the min-max
interval of DoF 3 gets enlarged to contain the value 42.
Best Regards,
Tim
--
Dr. Tim Kroeger
CeVis -- Center of Complex Systems and Visualization
University of Bremen [email protected]
Universitaetsallee 29 [email protected]
D-28359 Bremen Phone +49-421-218-7710
Germany Fax +49-421-218-4236
------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
_______________________________________________
Libmesh-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/libmesh-users
