[Gmsh] Re: AW: [Libmesh-users] unv file format

[Christophe Geuzaine]

Fabio Sacconi wrote:
> 
> Actually,  Gmsh  just writes  the  identification numbers of   "users 
> defined"  regions to  this  dataset 790.
> I don't know  why.
> As for  now, it's  not possible to  write  these  region  IDs    to   
> 2414 unv-dataset, but
> maybe  it's  possible  to  change  Gmsh code to   do  this.

Good idea. Feel free to remove the "dataset 790" from Gmsh's export 
routine (gmsh/Mesh/Print_Mesh.cpp) and replace it with the "dataset 
2414" stuff. If you send me a patch with the changes I will merge it in 
the official tree.

Christophe


> Where can I  find  the  description of  unv  format,  and  specifically  
> of   2414 unv-dataset ?
> With this  description  one  could  in  principle   write  physical  
> properties to  an  unv   file  and  read them  with  libmesh meshdata 
> class.
> 
> Fabio
> 
> 
> 
>>> Hello,
>>> I'm  trying  to  read in Libmesh  a  mesh input  file with  .unv  
>>> format.
>>> With Gmsh I can combine  several elements in  a  physical region, in  
>>> order  to  associate some  physical  properties to  it.   In  the  
>>> .unv  file  exported by  Gmsh, this  information is  written  in  a  
>>> dataset "790".
>>> Is  there anybody  who  knows  which is  the  format  of    dataset   
>>> 790 in   .unv  file ?
>>>   
>>
>>
>> As you have probably noticed, libMesh does not support the
>> unv-dataset 790, which seems to be dedicated to load sets
>> (I wonder why Gmsh associates physical element properties
>> with this dataset). Is there a way of writing the data to a 2414 
>> unv-dataset in Gmsh?
>>
>> Steffen
>>
>>
>>  
>>
>>> I  tried   to  look  for  information about   unv  file format  but  
>>> I  couldn't   find  anything,  do   you  know  if    there is  a   
>>> published  description of   this  IDEAS unv  format   in  some   place ?
>>>
>>> Bye
>>>
>>> Fabio
>>>
>>>
>>>
>>>   
>>
>>
>>  
>>
> 
> 


-- 
Christophe Geuzaine
Applied and Computational Mathematics, Caltech
geuzaine at acm.caltech.edu - http://geuz.org