[MOAB-dev] h5m with data

[Nico Schlömer]

Thanks Patrick for your reply.

I'm still having problems where data should be stores. In a h5m file, I see
tags, I see sets with tags in them, and it seems they are somehow related,
but I don't know where and how to put the actual data. I would help to see
a file with some mesh and a custom data element in it, e.g., an array of
values associated with the vertices.

Cheers,
Nico

On Sun, Nov 8, 2015 at 9:20 PM Patrick Shriwise <shriwise at wisc.edu> wrote:

> Hi Nico,
>
> The vertex data should be stored in MOAB tags. You can access these tags
> via their name. There is a set of conventions for the tag names in an
> Exodus file (here
> <http://ftp.mcs.anl.gov/pub/fathom/moab-docs/MBTagConventions_8hpp.html>
> I think). However, if the tag has a custom name and isn't recognized by the
> Exodus reader, then the data might not be read in from the Exodus file and
> as a result won't be saved into the .h5m. Do you have an idea of what the
> tag name might be for your data?
>
> There's also a good example here
> <http://ftp.mcs.anl.gov/pub/fathom/moab-docs/SetsNTags_8cpp-example.html>
> of how to access the tag data on an entity. The example I linked you to
> accesses EntitySets rather than Entities, but they work the same way.
>
> If you think the data might be in the .h5m, you can use
> tag_get_tags_on_entity
> <http://ftp.mcs.anl.gov/pub/fathom/moab-docs/classmoab_1_1Interface.html#a6c737e7900d9c1b29b53d994076d204f>
> to get all of the tags on a vertex and then check for the tag data you're
> looking for. An easier way of doing this in the cmd line is by using mbsize
> -t <your_file>.h5m to print out the count by tag.
>
> Hope this helps!
>
> Cheers,
>
> Patrick C. Shriwise
> Research Fellow
> University of Wisconsin - Madison
> Engineering Research Building - Rm. 428
> 1500 Engineering Drive
> Madison, WI 53706
> (608) 446-8173
>
> On 11/08/15 13:43, Nico Schlömer wrote:
>
> Hi everyone,
>
> I have an Exodus file with vertex data in it (i.e., "a function" defined
> on the vertices). When converting this file to h5m, where does the vertex
> data go? And how to I retrieve the data after having it read with
> `load_file()`?
>
> Cheers,
> Nico
>
>
>
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