[Dune] Fwd: Re: Difference betweendune/geometry/genericgeometry/referenceelements.hh anddune/geometry/referenceelements.hh ???

[Martin Nolte]

-------- Original Message --------
Subject: Re: [Dune] Difference 
betweendune/geometry/genericgeometry/referenceelements.hh 
anddune/geometry/referenceelements.hh ???
Date: Wed, 16 Nov 2011 09:58:54 +0100
From: Martin Nolte <nolte at mathematik.uni-freiburg.de>
To: Oliver Sander <sander at mi.fu-berlin.de>

Hi Oli,

this is hard to say. The DUNE reference element interface requires a function
"global". To implement this function, we use a CornerMapping. But this mapping
also requires some information about the reference element, which is
encapsulated in the GenericGeometry reference element.

To make a long answer short: I think I would switch to the GenericGeometry
reference element, because the method "global" is rarely used anyway and you
can easily construct a suitable CornerMapping. But this change is far too
intrusive.

If we want to get rid of this redundancy, we could think about deprecating the
functions "global" and "mapping" (I think that's it). After their removal, it
might then be possible to always use the DUNE reference element interface.
However, in this case I would like to discuss the entire reference element
interface on a developer meeting.

Best,

Martin

On 11/15/2011 10:50 PM, Oliver Sander wrote:
> Hi,
> Martin's comment seems to imply that there may be some redundancy in the
> files, as a left-over from old times. Is this true? What would you change/
> clean up if you had infinite ressources?
> --
> Oliver
>
> Am 15.11.2011 22:25, schrieb Dedner, Andreas:
>> No - include dune/geometry/referenceelements.hh
>> If you look into the old files (e.g.
>> dune/grid/common/genericreferenceelements.hh)
>> the correct new file should be mentioned there.
>>
>> Greetings
>> Andreas
>>
>> -----Original Message-----
>> From: dune-bounces+a.s.dedner=warwick.ac.uk at dune-project.org on behalf
>> of Oswald Benedikt
>> Sent: Tue 11/15/2011 8:57 PM
>> To: Martin Nolte; dune at dune-project.org
>> Subject: Re: [Dune] Difference
>> betweendune/geometry/genericgeometry/referenceelements.hh
>> anddune/geometry/referenceelements.hh ???
>>
>> Hello Martin,
>>
>> thanks, in fact we are adapting our codes to the new situation,
>> thus we need to be sure on what is to be done, since the change with the
>> new dune geometry module took us somewhat by surprise.
>>
>> Of course, there was discussion on the mailing list, but with mainly
>> physical problems
>> in mind we were a bit distracted.
>>
>>
>> Thus, we include dune/geometry/genericgeometry/referenceelements.hh
>> and all is well ?
>>
>>
>> Greetings, Benedikt
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Martin Nolte [mailto:nolte at mathematik.uni-freiburg.de]
>> Sent: Tue 11/15/2011 21:42
>> To: Oswald Benedikt; Dune
>> Subject: Re: [Dune] Difference between
>> dune/geometry/genericgeometry/referenceelements.hh and
>> dune/geometry/referenceelements.hh ???
>>
>> Hi Benedikt,
>>
>> a simple answer would be: The file
>> 'dune/geometry/genericgeometry/referenceelements.hh' is private to the
>> GenericGeometry implementation.
>>
>> A hint to the long answer is that 'dune/geometry/referenceelements.hh'
>> mimicks
>> the interface for a DUNE reference element as was originally provided in
>> DUNE
>> (before the inclusion of the generic geometries).
>>
>> Is there any specific reason for the question or are you just curious?
>>
>> Best,
>>
>> Martin
>>
>> On 11/15/2011 04:30 PM, Benedikt Oswald wrote:
>>> Hello Dune, what is the difference between
>>>
>>>
>>> dune/geometry/genericgeometry/referenceelements.hh
>>>
>>> and
>>>
>>>
>>> dune/geometry/referenceelements.hh ???
>>>
>>>
>>> Thanks for a hint! Greetings, Benedikt
>>>
>>>
>>>
>> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
>>
>>> Benedikt Oswald, Dr. sc. techn., dipl. El. Ing. ETH, www.psi.ch,
>> Computational Accelerator Scientist, http://amas.web.psi.ch
>>> Paul Scherrer Institute (PSI), CH-5232 Villigen, Suisse,
>> benedikt.oswald at psi.ch, +41(0)56 310 32 12
>>>
>>> "Passion is required for any great work, and for the revolution
>> passion and audacity are required in big doses.",
>>> Ernesto 'Che' Guevara, Letter to his parents.
>>>
>> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
>>
>>>
>>>
>>> _______________________________________________
>>> Dune mailing list
>>> Dune at dune-project.org
>>> http://lists.dune-project.org/mailman/listinfo/dune
>>
>> --
>> Martin Nolte <nolte at mathematik.uni-freiburg.de>
>>
>> Universität Freiburg phone: +49-761-203-5630
>> Abteilung für angewandte Mathematik fax: +49-761-203-5632
>> Hermann-Herder-Straße 10
>> 79104 Freiburg, Germany
>>
>>
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>>
>>
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>
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-- 
Martin Nolte <nolte at mathematik.uni-freiburg.de>

Universität Freiburg                                   phone: +49-761-203-5630
Abteilung für angewandte Mathematik                    fax:   +49-761-203-5632
Hermann-Herder-Straße 10
79104 Freiburg, Germany