[Gmsh] 1D mesh from .igs file

[Olivier Pierard]

Christophe Geuzaine wrote:

> Olivier Pierard wrote:
>
>> Dear all,
>>
>> Please find in attachment a very simple 1D .igs file (which is a not 
>> closed curve).  When I open it in Gmsh, it tries to close the curve 
>> so that the mesh is far from what I expect.  Why is it behaving so 
>> and is there any way to avoid it ?
>>
>
> Disabling OpenCascade CAD healing for small edges seems to fix the
> problem: use "Geometry.OCCFixSmallEdges=0;" in a script, or
> "Tools->Geometry->General->Remove small edges..." in the GUI.
>
> PS: if possible use STEP files instead of IGES. The geometrical
> tolerances required by IGES files are an unending source of problems.
>
>
>
>> Thanks for any hint,
>>
>> Olivier Pierard
>>
>>
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>
>
>
Thank you very much for this prompt answer !
Effectively, it fix the problem.

Olivier