Expose tag list in pymoab write_file

[Paul Wilson]

write_file allows a list of tags to be written but this isn’t supported in pymoab’s interface. It’s implementation is probably similar to the output_sets option

[Patrick Shriwise]

This shouldn't be too bad to add. At the time we hadn't decided how to represent the TagInfo object in PyMOAB, as part of my failed endeavor to fully support the get_entities_by_type_and_tag query I implemented a TagArray object which should make this pretty straight forward.

[Patrick Shriwise]

This now part of the PyMOAB 5.1.0 update. ( PR here )

[Patrick Shriwise]

Maybe more useful is the commit

[Patrick Shriwise]

One thing to note here is that the tag handle will still be written to file. Its data, however, will not be. This is an artifact of the underlying write_file method in MOAB, not an effect of PyMOAB.

[Paul Wilson]

You mean the tag handles that are not in the list will be written to file without their data? The tags that are in the tag list will be written with their data as well, right?

[Patrick Shriwise]

Sorry, that wasn’t very clear. Yes that’s what I meant.

[Patrick Shriwise]

Update: There was an error in my implementation. If provided a tag list, only those tags will be written. Other tags, both handle and data, will be omitted from the file.