[Gmsh] Two overlapping spheres

[Christophe Geuzaine]

On 05 Apr 2013, at 12:21, "Zenker, Dr. Matthias" <Matthias.Zenker at erbe-med.com> wrote:

> Hi Christophe,
> 
> since you are working on "real" CAD routines: Do you also plan to implement a possibility to detect and merge duplicated surfaces (including partial overlaps) on CAD level? The "cut and merge faces" does not work in quite some cases...
> 

Indeed. The current idea for the OpenCASCADE port is to rewrite the model factory using the Salome/FreeCAD routines.


> Matthias
> 
> 
>> -----Ursprüngliche Nachricht-----
>> Von: Christophe Geuzaine [mailto:cgeuzaine at ulg.ac.be]
>> Gesendet: Donnerstag, 4. April 2013 13:15
>> An: Songting Luo
>> Cc: gmsh at geuz.org
>> Betreff: Re: [Gmsh] Two overlapping spheres
>> 
>> 
>> On 27 Mar 2013, at 00:40, Songting Luo <luosongting at gmail.com> wrote:
>> 
>>> Dear All,
>>> 
>>> I want to generate a 3D mesh for two overlapping spheres.  How can I
>>> combine these two spheres as one single object (as a union), and generate
>> the mesh?  Please let me know, thank you very much.
>>> 
>> 
>> Gmsh's internal small CAS engine does not compute boolean operations;
>> you'll need to either create the geometry directly (computing the
>> intersections yourself), or use a CAD modeler (e.g. Freecad) to create the
>> geometry and export e.g. in STEP.
>> 
>> We are working toward integrating "real" CAD creation routines in Gmsh, but
>> it's not ready yet for general use.
>> 
>>> 
>>> best,
>>> 
>>> Luo
>>> _______________________________________________
>>> gmsh mailing list
>>> gmsh at geuz.org
>>> http://www.geuz.org/mailman/listinfo/gmsh
>> 
>> --
>> Prof. Christophe Geuzaine
>> University of Liege, Electrical Engineering and Computer Science
>> http://www.montefiore.ulg.ac.be/~geuzaine
>> 
>> 
>> 
>> 
> 
> 
> 
> _____________________________________________________________________
> ERBE Elektromedizin GmbH
> Firmensitz: 72072 Tuebingen
> Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede
> Registergericht: Stuttgart HRB 380137
> 

-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 
http://www.montefiore.ulg.ac.be/~geuzaine