[MOAB-dev] h5m: class attribute in tags

[Grindeanu, Iulian R.]

Hi Nico,

Not sure what are you trying to do here.
Do you need to improve the h5m reader writer? Or do you try to understand how are the data / tags stored?

Do you have a specific problem/bug ?
Suggestions for improvement?

All these attributes are part of specific moab conventions and hdf5 format. Not much documentation, except what you already found.

class would correspond to the type of the tag (integer, double, opaque, etc)
default would be the default value

global is used if the tag is "global", in the sense it refers to the whole mesh instance

"The tag sub-group may have any or all of the following four attributes: default, global, is_handle, and variable_length. The default attribute, if present, must contain a single tag value that is to be considered the 'default' value of the tag. The global attribute, if present, must contain a single tag value that is the value of the tag as set on the mesh instance (MOAB terminology) or root set (ITAPS terminology.) The presence of the is_handle attribute (the value, if any, is meaningless) indicates that the tag values are to be considered entity IDs."








________________________________
From: moab-dev-bounces at mcs.anl.gov [moab-dev-bounces at mcs.anl.gov] on behalf of Nico Schlömer [nico.schloemer at gmail.com]
Sent: Wednesday, November 11, 2015 3:43 AM
To: moab-dev at mcs.anl.gov
Subject: [MOAB-dev] h5m: class attribute in tags

Hi everyone,

In h5m files [1], I see that tstt->tags typically have three attributes:

 * class
 * default
 * global

Where can I find documentation on these attributes?

Cheers,
Nico

[1] https://trac.mcs.anl.gov/projects/ITAPS/wiki/MOAB/h5m
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/moab-dev/attachments/20151111/24df6abb/attachment.html>