[Dune] CurvilinearGridAPI: Implementation of EntityTags and BoundaryIterators

[Oliver Sander]

Am 18.12.2014 um 15:24 schrieb Christoph Grüninger:
> Hi!
> 
>> I agree with both feature request but I can tell you right away that at
>> least with respect to the material property you will not find much
>> support. We had a method like that for a boundary id but that was now
>> removed.
> 
> We have this use case, too. We want to read grids with attached
> permeabilities to its cells. In principle we would like to have such a
> feature.

So what type would you like to attach to each element?  A double?  Or rather
a full 3x3 matrix, because permeabilities are tensors after all?  Or an
enum?  What would the values of that enum be?

> 
> The boundary ID issues was more complex, if I remember correctly. It was
> removed as some questioned that the feature was properly
> documented/defined/described.

This was an additional objection.

> 
> Oliver answered Aleksejs should "expect quite a bit of opposition to
> it." I am wondering, who is this opposition?

Me, to say the least.

:-)
Oliver

 Maybe we should make a
> non-decisive move to get a insight in the general opinion?
> 
> Best
> Christoph
> 


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