[Dune] Reference tetrahedron, again

[Sreejith Pulloor Kuttanikkad]

On Tue, Jul 26, 2005 at 11:22:24AM +0200, Adrian Burri wrote:
> Just wondering: was there any conclusion on that topic? And is the 
> adopted solution being implemented?
> 
> Adi

since there was no definite conclusion, i havent made any attempt to
implement the suggested solution. but i have no objection to implement
the way you suggested given that everybody agrees upon and the grid
managers(ALU and UG..)does comply with the implementation.

sreejith

> 
> Adrian Burri wrote:
> 
> >Hi,
> >
> >Well, if nobody else has a preference, I suggest we adopt mine ;-).
> >
> >(Having the same orientation on all faces makes sense if you have a 
> >complete set of entities (i.e. you actually store faces, egdes etc.). 
> >In this case, you can implement a generic routine to calculate the 
> >twist of a face relative to an element's face. This is of course not 
> >needed in Dune, but I think it is a nice feature nevertheless.)
> >
> >Adi
> >
> >Peter Bastian wrote:
> >
> >>Robert Kloefkorn schrieb:
> >> 
> >>
> >>>Peter Bastian wrote:
> >>>
> >>>  
> >>>
> >>>>Hi,
> >>>>
> >>>>what is the class ReferenceTopologySet for anyway? I thought, on the
> >>>>last dune meeting we decided that the reference elements are those 
> >>>>that
> >>>>are in the class ReferenceElement. This class contains a superset 
> >>>>of the
> >>>>information in ReferenceTopologySet and is implemented for more cases.
> >>>>    
> >>>
> >>>Wir haben beschlossen, dass diese es sein sollen. Da zum Zeitpunkt des
> >>>Beschlusses aber
> >>>noch nicht klar war, wie die Referenzsimplices aussehen, m?ssen wir
> >>>diese Diskussion eben jetzt nachholen. Ich denke bei der Nummerierung
> >>>der Knoten und Fl?chen sind wir uns einig, dass es die sein soll, die
> >>>auch im web steht. Bei der Nummerierung der Knoten der Fl?chen w?re es
> >>>allerdings sch?n, wenn diese so w?re, wie Adrian es vorgeschalgen hat,
> >>>da dann z.B. alle Normalen in eine Richtung (nach innen) zeigen. Bei 
> >>>der
> >>>von Heidelberg vorgeschlagenen Variante ist dies nicht der Fall.
> >>>Deshalb w?re es sch?n, mal die Vorteile der von Heidelberg
> >>>vorgeschlagenen Variante zu h?ren, damit wir abw?gen k?nnen, welche
> >>>Varainte ins Interface aufgenommen sind.
> >>>
> >>>
> >>>  
> >>
> >>I do not have any preference for any enumeration. The thing with the
> >>normals is nice but
> >>I dont see where this is needed because you get the normals from the
> >>intersection iterator and don't compute them for yourself. What I would
> >>prefer is a numbering that can be defined for all simplices in n
> >>dimensions (although we do not have a grid manager that can do that).
> >>Might be interesting for the future.
> >>
> >>-- Peter
> >>------------------------------------------------------------------
> >>Peter Bastian, IWR,Uni Heidelberg, INF 348,R 020, 69120 Heidelberg
> >>email: Peter.Bastian at iwr.uni-heidelberg.de   Tel: +49 6221 54 4984
> >>WWW: http://www.iwr.uni-heidelberg.de/~Peter.Bastian Fax: ... 8860
> >>
> >>
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> >> 
> >>
> >
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> 
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-- 
Sreejith Pulloor Kuttanikkad                       
Interdisciplinary Centre for Scientific Computing 
Ruprecht-Karls-University of Heidelberg          
Im Neuenheimer Feld-368                         
69120,Heidelberg,Germany                      
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