[petsc-users] PETSc recommended visualization packages

[Blaise A Bourdin]

Brad,

Do you have examples of the way you encode mesh informations (connectivity table, block of elements, edges, vertices) in hdf5 files, and of the xdmf files that describe that layout? As I said in a previous message, I find the xdmf format documentation quite lacking. 

I also use Sieve to represent my mesh.

Regards,

Blaise

-- 
Sent from a handheld device.

On Jul 7, 2011, at 8:31 PM, Brad Aagaard <baagaard at usgs.gov> wrote:

> Ethan-
> 
> I think writing an Xdmf file that points to the datasets in an HDF5 file is probably easier than creating a viewer. For PyLith we write the HDF5 file and a corresponding Xdmf file. This allows us to simply open the Xdmf file in ParaView; I think VisIt supports this as well.
> 
> Brad
> 
> 
> On 07/07/2011 10:12 AM, Ethan Coon wrote:
>> The downside of this option is that, in order for hdf5 files to work in
>> anything but python (which is smart enough to use introspection on the
>> file itself) you need a special viewer (the VisIt people call this a
>> "flavor" of HDF5), see
>> 
>> http://visitusers.org/index.php?title=VisIt_and_HDF5
>> 
>> These work on both VisIt and Paraview, but I've never tried to write one
>> myself, so I don't know how ugly they are.  They basically specify the
>> layout of the hdf5 file.
>> 
>> Note that if you go with the HDF5 option, you'll likely want to move to
>> petsc-dev, which includes more HDF5 functionality, such as groups.
>