[MOAB-dev] h5m with data

[Patrick Shriwise]

Hi Nico,

I see. I may have misunderstood your problem. It seems you're trying to 
apply data to the mesh. Is that right?

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 20:03, Nico Schlömer wrote:
> 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 
> <mailto: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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