[Gmsh] Reclassify 2D does not work

[Martin Vymazal]

Hello Christophe,

  thank you very much for this.

  Best regards,

    Martin Vymazal

Quoting Christophe Geuzaine <cgeuzaine at ulg.ac.be>:

> Hi Martin,
>
> I've slightly generalized our "Skin" plugin so that it can compute  
> boundaries of meshes (not only boundaries of post-processing  
> datasets); see r15201.
>
> In a script
>
> Plugin(Skin).FromMesh=1;
> Plugin(Skin).Run;
>
> will generate the boundary of the mesh as a new discrete surface,  
> which you can then reclassify.
>
> Hope this helps,
>
> Christophe
>
> On 04 Apr 2013, at 13:53, Christophe Geuzaine <cgeuzaine at ulg.ac.be> wrote:
>
>>
>> On 04 Apr 2013, at 13:20, Martin Vymazal <martin.vymazal at vki.ac.be> wrote:
>>
>>> Hello Christophe,
>>>
>>> thank you for your quick reply. I guess I'll have to extract the boundary
>>> elements outside of gmsh.
>>>
>>
>> We should probably provide a Plugin that does that: we currently do  
>> it for post-processing datasets, we should do it simply for meshes...
>>
>>> Best regards,
>>>
>>>  Martin Vymazal
>>>
>>>
>>> On Thursday 04 April 2013 13:12:14 Christophe Geuzaine wrote:
>>>> Hi Martin,
>>>>
>>>> The Reclassify tool is a tool to "reclassify" surface meshes; but  
>>>> there are
>>>> no surface elements (triangle or quads) in your mesh...
>>>>
>>>> Christophe
>>>>
>>>> On 04 Apr 2013, at 11:36, Martin Vymazal <martin.vymazal at vki.ac.be> wrote:
>>>>> Dear gmsh developers,
>>>>>
>>>>> I have a 3D flat plate grid  downloaded from here:
>>>>> http://turbmodels.larc.nasa.gov/flatplate_grids.html (3D Plot3d grid, 2 x
>>>>> 545 x 385 points). I converted the grid to vtk and also split the
>>>>> hexahedra into tetra using paraview. I am not able to reclassify the
>>>>> surface of the geometry to create physical surfaces (to be able to set
>>>>> boundary conditions for my flow solver). The 'Reclassify' button in the
>>>>> Reclassify2D dialog always remains greyed out, no matter what I do. Is it
>>>>> a bug? If not, could you please tell me the settings you use to
>>>>> reclassify the surface?
>>>>>
>>>>> Best regards,
>>>>>
>>>>> Martin
>>>>> Vymazal<flatplate_clust2_tetra.vtk.gz><flatplate_clust2.vtk.gz>________
>>>>> _______________________________________>
>>>>> gmsh mailing list
>>>>> gmsh at geuz.org
>>>>> http://www.geuz.org/mailman/listinfo/gmsh
>>>
>>> _______________________________________________
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>>
>> --
>> Prof. Christophe Geuzaine
>> University of Liege, Electrical Engineering and Computer Science
>> http://www.montefiore.ulg.ac.be/~geuzaine
>>
>>
>>
>
> --
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine