[Dune] boundaryIndex on coarse grid

[Andreas Dedner]

Hi,
I thought that each level 0 boundary segment should have a unique
index.
Andreas

Christian Engwer wrote:
> While updating the strcutured grids, I was wondering about a small
> detail in the boundaryIndex interface.
> 
> The meeting minutes state:
> 
> The user must be able to attach boundary information to the level-0
> boundaries.
>    1. Up to now the boundaryIDs allowed to associate an int with a
> 	  boundary segament.
>    2. The new proposal is to have an index with a boundary index. This
> 	  is (more) consistent with the other indicies and allows to
> 	  associate more or less any data with boundaries. The number
> 	  would be inherited from the coarse grid.
> 
> It does not say anything about the number of indices on the coarse
> grid. I also thought, that that was the purpose of the
> numBoundarySegments method.
> 
> These descriptions especillay allow to have a boundary segment that
> covers several coarse grid element, like the whole left side on a
> strcutures grid. The gridcheck on the other hand complains.
> 
> So my question now is.
> 
> * What is the desired feature. Do we allow "multielement"-segments?
> 
> Christian
> 
> _______________________________________________
> Dune mailing list
> Dune at dune-project.org
> http://lists.dune-project.org/mailman/listinfo/dune