[Dune] Mapping between 1D and 2D grid

[Alasdair James McLeay]

Thanks Oliver,

Is there any code for an example program online? The 2d Richards-equation and 1d Shallow-water equation looks similar to what I want to do.

Thanks,
Ali


On 31 Aug 2012, at 14:11, Oliver Sander <sander at mi.fu-berlin.de> wrote:

> Hi Alasdair,
> to me it sounds like what you need is dune-grid-glue.
> Check it out at http://www.dune-project.org/modules/dune-grid-glue/index.html
> And don't hesitate to ask further questions.
> cheers,
> Oliver
> 
> Am 31.08.2012 14:30, schrieb Alasdair James McLeay:
>> Hi,
>> 
>> I have a 2D grid, for which I am using Dune::ALUConformGrid. I also have
>> a 1D grid (in a way, the 1D grid represents one of the boundaries of the
>> 2D grid, but I am solving a different problem on this boundary - I have
>> a 1D problem that requires me to perform an integral over the 2D grid on
>> the right hand side). For the 1D grid I am using Dune::OneDGrid.
>> 
>> I am discretising my 2D grid so that each triangle projects onto a
>> single section of the 1D grid. I am doing this manually by ensuring
>> refining 1D and 2D grids to the appropriate level.
>> 
>> I want to map between each triangle in my 2D grid and the equivalent
>> section of my 1D grid. I was thinking I could create a C++ map that
>> stores these references, as I will need to use it frequently.
>> 
>> Does this make sense? Perhaps there is a much better way to do all of
>> this already provided by Dune? Unfortunately I can't find anything to
>> read on the subject - although I see on:
>> http://users.dune-project.org/projects/main-wiki/wiki/Grid-Manager_Features
>> 
>> ...that some grid managers offer 'communicate()' features. Perhaps this
>> is what I'm after? Is there anything I can read on the subject?
>> 
>> Thanks,
>> Ali
>> 
>> 
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