I did some more investigation in this regard. It seams a geometry
problem not a mesh problem. What we are after is called a compsolid in
OpenCascade, a container of solid(s) sharing common face(s) see
http://opencascade.blogspot.ch/2009/02/topology-and-geometry-in-open-cascade_27.html There is not much about them over the internet. If a VALID compsolid iss passad to GMSH in BREP it seams conformal meshing works even if there are inner curved shapes. As an example here the link to two boxes which are connected by a curved face in brep. Just import into GMSH mesh in 3D and export in your favorite mesh format. I used unv.
http://forum.freecadweb.org/download/file.php?id=19442
The problem is the creation of the compsolid. I did try in FreeCAD. If
someone is interested see
http://forum.freecadweb.org/viewtopic.php?f=8&t=13830
bernd
Zitat von Bernd Hahnebach <[email protected]>:
Why does the faces have to be connected by an geometry option in
GMSH? We could GMSH just tell the faces are connected, or give GMSH
the geometry with connected faces allready, couldn't we? Would this
allow GMSH to make an conformal mesh on curved faces?
The question would be how could this be done. May be by directly
passing a BREP in which the faces are connected allready? Or by the
use of geo format?
Mhh, most important would be if conformal meshing on curved inner
faces would be possible by GMSH if passing appropriate geometry to
GMSH ?
Bernd
Zitat von Bernd Hahnebach <[email protected]>:
AFAIK
GMSH Tools --> Options --> Geometry --> General --> Cut and merge
faces (-string "Geometry.OCCConnectFaces = 1;") works on planar
faces only ! See http://www.geuz.org/pipermail/gmsh/2015/010043.html
As Matthias stated Salomone seams the only open source tool
offering this for non planar faces.
Bernd
11.01.2016, 14:10, "Zenker, Dr. Matthias"
<[email protected]>:
AFAIK Salomé is the only free tool which can repair duplicated faces
in many cases (it also has difficulties with some cases of curved
surfaces, however). You have to make a partition from your geometry,
see
http://www.elmerfem.org/elmerwiki/index.php?title=Multiple_bodies_from_Salome_to_Elmer
for some hints.
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