[Gmsh] Joining two pipes

Geordie McBain gdmcbain at freeshell.org
Mon Aug 9 01:29:25 CEST 2010

2010/8/6 Martin Vymazal <martin.vymazal at vki.ac.be>:
> P.S. Do you have any idea what open source software might be able to edit
> stl geometry? Salome maybe?

What editing operations do you have in mind? There's not a lot of
structure permitted in STL, unfortunately; e.g. it doesn't support any
features for tagging part of the surface as something like a `Physical
Surface' in Gmsh.  Some codes get around this limitation by using
several STL surfaces to represent domain boundaries; e.g. one for the
inlet/source patch, another for outlet/sink patch, and a third for the
rest of the boundary.

You can do some simple transformations with ADMesh like dilation,
translation, eversion, etc. (careful though, their website is really
broken at the moment

MeshLab <http://meshlab.sf.net> looks good, but I haven't tried it yet
myself.  I haven't tried Salome either.