[Gmsh] half of structure disappears

Juan E. Sanchez juan.e.sanchez at gmail.com
Sun Mar 4 17:46:24 CET 2018

Using the latest Mac OS snapshot, it is the same behavior.

3 sections appear (air, gate, air)

I go into the visibility dialog, visualize both "gate" and "air", and 
the last "air" disappears.

If I mesh before opening the visibility dialog, all 3 sections get meshed.

When I save the mesh, and then open the mesh file, one of the "air" 
sections is missing.

Starting over:

If I open the visibility dialog, and select both physical groups, one of 
the "air" sections disappear.

Looking in the Elementary entities, it appears that there are 3 volumes. 
  It looks like one of the "air" sections did not get assigned to the 
Physical Group.

How do I ensure that both "air" sections get assigned to the same 
Physical Group?



On 3/4/18 1:21 AM, Christophe Geuzaine wrote:
> Dear Juan,
> Not sure what you observe - your file seems to behave normally with the 
> latest version. Can you try with the latest automated snapshot ?
> Christophe
>> On 3 Mar 2018, at 20:40, Juan E. Sanchez <juan.e.sanchez at gmail.com 
>> <mailto:juan.e.sanchez at gmail.com>> wrote:
>> Hello,
>> I am using the OpenCASCADE factory to create a fairly complicated 
>> structure.  In this simplified test case, I run into the issue where 
>> part of the structure disappears when the center of it is removed.
>> When GMSH opens the file, it looks correct.  Then when I start 
>> manipulating it in the Visibility dialog, half of the "air" volume 
>> disappears.
>> When 3d meshing half of the "air" volume is also missing.
>> When I reopen the saved mesh, half the "air" volume is also missing.
>> Could someone please take a look?
>> Regards,
>> Juan Sanchez
>> <test.geo>_______________________________________________
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>> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
> Free software: http://gmsh.info | http://getdp.info | http://onelab.info

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