[Gmsh] Problem with duplicate triangles in STL files (Vahid Tari)

[benjamin JEANTY-RUARD]

Hi Vahid,

One solution could be to export your STL file in .msh file with the
duplicated elements. Then, you can use GEFICOT, GEo FIles COherence
Tool, available on the following web page for free to help you to remove
duplicated elements and/or merge co-localised construction nodes from
a .msh file.

http://dev.artenum.com/projects/GEFICOT

You should have after this step a .msh file without any duplicated
triangles. After, you can use the MeshToGeo tool available on the
following web page for free to convert your .msh computed in the
previous step to a .geo file with geo triangles:

http://dev.artenum.com/projects/MeshToGeo

Finally, using Gmsh application, you can easily define with the GUI the
volume based on the external boundary of your geometry.

Regards,

Benjamin

On Mon, 2018-10-01 at 06:57 +0200,
gmsh-request at ace20.montefiore.ulg.ac.be wrote:
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>    1. Problem with duplicate triangles in STL files (Vahid Tari)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Sun, 30 Sep 2018 17:16:36 -0400
> From: Vahid Tari <vahidtari at gmail.com>
> To: gmsh at onelab.info
> Subject: [Gmsh] Problem with duplicate triangles in STL files
> Message-ID:
> 	<CAGHgRjxpn31mGJ05E5TpvLZcVit8MuN=zd1MwCzgjx4VJbaOjg at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> Hello,
> 
> I am using Gmsh to merge some .STL files, and to generate volume mesh after
> merging. unfortunately, I get the warning of duplicate triangle in the
> merged .STL file.
> 
> I attach couple of slides that show the process of merging two parts, as
> you see in the slide these two parts share the same boundary.
> 
> I would be grateful if you tell me how I can remove duplicated triangles in
> the generated merged .STL file.
> 
> Best,
> Vahid
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-- 
Benjamin JEANTY-RUARD

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