[Gmsh] Upgrade Errors

Christophe Geuzaine cgeuzaine at ulg.ac.be
Fri Jun 26 12:39:56 CEST 2015


> On 25 Jun 2015, at 20:04, Feola, Andrew J <andrew.feola at bme.gatech.edu> wrote:
> 
> Hello,
> 
> Attached is a small geometry that creates the problem.  I know there is a warning, but I do not get this in the full geometry, I am only trying to figure out why the center part will not mesh in the updated version of gmsh.
> 

Hi Andy - The line loop for the problematic surface is wrong: removing ONpostline_L (which seems to refer to the same line as ONsplineA_L) fixes the issue:

Line Loop(opticNerve_L) = {-ONsplineA_L,postperpSC_to_LC_L,/*ONpostline_L,*/LCPostLine_L,ONInnerA_L,ONInnerB_L,ONpostline_L,-ONsplineB_L};

Christophe


> Thanks
> Andy
> 
> ________________________________________
> From: Christophe Geuzaine <cgeuzaine at ulg.ac.be>
> Sent: Tuesday, June 23, 2015 3:09 PM
> To: Feola, Andrew J
> Cc: gmsh at geuz.org
> Subject: Re: [Gmsh] Upgrade Errors
> 
>> On 22 Jun 2015, at 19:33, Feola, Andrew J <andrew.feola at bme.gatech.edu> wrote:
>> 
>> Hello,
>> 
>> I created a geometry in gmsh 2.8.3, and it meshes fine.  However, when I upgraded to gmsh 2.9.3 I get the error 'The 1D mesh seems not to be forming a closed loop' for a single line loop in my geometry.  I get the message 'Starting subloop 1 in Line Loop 44 <are you sure about this?>' when I load my geometry, and this refers to the region that gmsh no longer can mesh.  I do not have a hole in my geometry, but the region it is referring to is surrounded on 3 sides by separate line loops that create different surfaces.   I don't quite understand why I get this message and error. If you have any insight I would appreciate it.
>> 
> 
> Could you send a (small) geometry that triggers the issue?
> 
> Christophe
> 
>> Thanks,
>> Andy
>> _______________________________________________
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>> gmsh at geuz.org
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> 
> --
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
> 
> 
> 
> <Simple_Geo-V1.geo>

-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine







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