[Gmsh] suggested new meshing algorithm in Gmsh: hex gridding

[Billy Araujo]

Hi,

There was a version of Gmsh (I think 1.65) that remeshed the STL
surface. I think developers have not ported that algorithm into latest
versions which is a pity.

Both tetgen and netgen can remesh STL files though and they are open source.

Then there are other commercial software which can do the remeshing.

Regards,

Billy.


On Fri, Jul 31, 2009 at 2:10 AM, Mike B.<mb78aa at yahoo.com> wrote:
> HI Billy,
>
> Following your posts on CFDOnline, I hope you can help with this Gmsh-STL
> problem.
>
> I have a model saved as an STL file. I import it into Gmsh, define a control
> volume around it and mesh the volume which gives tetrahedral elements.
> However,  Gmsh does not mesh the model surface (it does not mesh STL files):
> http://article.gmane.org/gmane.comp.cad.gmsh.general/1471
>
> Any suggestions how to mesh the STL model Gmsh?.
>
> Cheers,
> Mike.
>
> --- On Thu, 7/30/09, Billy Araujo <billyaraujo at gmail.com> wrote:
>
> From: Billy Araujo <billyaraujo at gmail.com>
> Subject: Re: [Gmsh] suggested new meshing algorithm in Gmsh: hex gridding
> To: "John Blackburn" <John.Blackburn at npl.co.uk>
> Cc: gmsh at geuz.org
> Date: Thursday, July 30, 2009, 6:03 PM
>
> Hi,
>
> I don't think you should underestimate the problem. Creating a good
> and conforming hex mesh is difficult. I can help you with the writing
> it in C or C++ if you want.
>
> For cartesian approach you can find a very simple hex mesher I wrote:
>
> http://www.cfd-online.com/Forums/openfoam-meshing-opensource/61973-generating-unstructured-grids-stl-files.html
>
>
> Regards,
>
> Billy.
>
>
>
>