[Gmsh] mehsing errors with extrusions

[Florian Kolbl]

Hello,
thank you very much for the help, it is working fine now.
I was just having an old version because of APT... I will definitely be 
more careful when installing something in the future.

Florian


On 05/01/16 18:48, Christophe Geuzaine wrote:
>
>> On 05 Jan 2016, at 16:15, Florian Kolbl <fkolbl at essex.ac.uk 
>> <mailto:fkolbl at essex.ac.uk>> wrote:
>>
>> Hi
>>
>> I am generating a mesh from segmented pictures using contour 
>> detection to make FEM computation on nerves. Basically I can have a 
>> 2D geometry from the segmentation, one example of my script output is 
>> on the file 2Dtest_nerve.geo, basically when I mesh it using a simple 
>> 'gmsh -2 2Dtest....' everything is fine.
>> However the next step is to have a 3D structure, so in the 
>> test_nerve.geo a new extruded nerve is biolt from the 2D previous 
>> geometry. The resulting geometry is exactly as I expected 
>> nevertheless I have problems when computing the 3D mesh... I have a 
>> lot or error named 'Could not find extruded vertex'. I guess it is a 
>> classic error, I tried to compute the distance between the nearest 
>> point for each point and give a lc that would increase the density 
>> but I still have these errors...the currious thing is that when I 
>> open the mesh to see where are the missing elements, I find them all 
>> in certain parts of the last layer from the extrusion.
>>
>> Is there a something missing in my geo or is there a way to avoid 
>> this kind of meshing error ?
>>
>
> Recent versions (>= 2.9) should fix this. This is what I get with the 
> latest stable release:
>
>
>> Thanks
>>
>> Florian
>>
>> -- 
>> Dr. Florian Kolbl
>> Senior Research Officer
>>
>> University of Essex
>> School of Computer Science and Electronic Engineering
>> Brain-Computer Interface Lab
>> Room 3A.532D
>> Telephone 01206 874384
>>
>> Winvenhoe Park
>> Colchester - Essex CO4 3SQ
>> United Kingdom
>>
>> <2Dtest_nerve.geo><test_nerve.geo>_______________________________________________
>> gmsh mailing list
>> gmsh at geuz.org <mailto:gmsh at geuz.org>
>> http://www.geuz.org/mailman/listinfo/gmsh
>
> -- 
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine 
> <http://www.montefiore.ulg.ac.be/%7Egeuzaine>
>
> Tetrahedron V, July 4-5 2016: http://tetrahedron.montefiore.ulg.ac.be
> Free software: http://gmsh.info | http://getdp.info | http://onelab.info
>

-- 
Dr. Florian Kolbl
Senior Research Officer

University of Essex
School of Computer Science and Electronic Engineering
Brain-Computer Interface Lab
Room 3A.532D
Telephone 01206 874384

Winvenhoe Park
Colchester - Essex CO4 3SQ
United Kingdom

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