[MOAB-dev] some questions

[Jason Kraftcheck]

On 04/20/2011 02:30 PM, Iulian Grindeanu wrote:
> Hello,
> I have some questions: 
> When we delete mesh ( Interface::delete_mesh() ), we are deleting also the tag data. But when I reload a mesh file in the same session, it seems that some tags are still there (or tag info?)
> I am a little confused. 

The tag data (per entity tag values) is deleted.  The tag definitions (type,
size, name, etc.) are not.


> 
> For some files though, I have an error
> for example mbconvert shell.h5m PB.h5m output.vtk will give an error when loading the second file
> (if I do mbconvert PB.h5m shell.h5m output.vtk, the error is again when loading the second input file)
> 

If the two files contain different definitions for a tag with the same name
(different type or size), then reading of the second file will fail.
Similarly, reading any file with a tag definition that conflicts with MOAB's
default tag definitions (GLOBAL_ID, ENTITY_NAME, etc.) will fail.

- jason