On Wed, Jan 20, 2016 at 4:33 PM, John Peterson <jwpeter...@gmail.com> wrote:

>
>
> On Wed, Jan 20, 2016 at 4:29 PM, Junchao Zhang <junchao.zh...@gmail.com>
> wrote:
>
>> I guess that is because the input mesh is read from a file in
>> adaptivity_ex2,
>> however the input file does not boundary info.
>>
>
> That's correct, there are no boundary ids in mesh.xda.
>
>
>
>> I am trying to add this to the input file. It looks the format of .xda
>> files is not well documented.
>>
>
> Check out, e.g. reference_elements/3D/one_hex.xda, the boundary conditions
> are at the end of the xda file, and I think they are (elem,side,id)
> triplets.
>
> 6        # number of boundary conditions
> 0 0 1
> 0 1 2
> 0 2 3
> 0 3 4
> 0 4 5
> 0 5 6
>

Oh yeah, also there's a LaTeX document here

doc/latex/xda_format/xda_format.tex

describing the format.

-- 
John
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