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, [email protected] wrote: > Send gmsh mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onelab.info/mailman/listinfo/gmsh > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of gmsh digest..." > > > Today's Topics: > > 1. Problem with duplicate triangles in STL files (Vahid Tari) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 30 Sep 2018 17:16:36 -0400 > From: Vahid Tari <[email protected]> > To: [email protected] > Subject: [Gmsh] Problem with duplicate triangles in STL files > Message-ID: > <CAGHgRjxpn31mGJ05E5TpvLZcVit8MuN=zd1mwczgjx4vjba...@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 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://onelab.info/pipermail/gmsh/attachments/20180930/19e8cda9/attachment.html> > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: Gmsh.pptx > Type: > application/vnd.openxmlformats-officedocument.presentationml.presentation > Size: 668244 bytes > Desc: not available > URL: > <http://onelab.info/pipermail/gmsh/attachments/20180930/19e8cda9/attachment.pptx> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > gmsh mailing list > [email protected] > http://onelab.info/mailman/listinfo/gmsh > > > ------------------------------ > > End of gmsh Digest, Vol 189, Issue 1 > ************************************ -- Benjamin JEANTY-RUARD -------------------- Artenum Toulouse - Science & Groupware http://www.artenum.com 20, rue Hermés 31520 Ramonville Saint Agne France Phone: +33 (0)5 82 95 51 97 _______________________________________________ gmsh mailing list [email protected] http://onelab.info/mailman/listinfo/gmsh
