> On 7 Feb 2018, at 09:07, Jacob Abdelfatah Ndioubnane <jacoba...@outlook.es> > wrote: > > Is thiis would be related to the normals of the surfaces?. I noticed that the > normals is oriented outward. So i tried to invert the normals but i cannt > find a way to do this. >
This works fine here: SetFactory("OpenCASCADE"); Merge "Inlet.brep"; Merge "Walls.brep"; Merge "Outlet.brep"; BooleanFragments{ Surface{:}; Delete; }{ } Surface Loop(1) = {1, 5, 2, 3, 6, 4}; Volume(1) = {1}; When the orientation of surfaces is inconsistent open cascade will by default automatically reorient the surfaces; unless you set Geomtry.OCCAutoFix = 0. > I attach a figure below. > > Best Regards > Jacob<02951EDB824840E597D871724BDD93AD.png> > > Enviado desde Correo <https://go.microsoft.com/fwlink/?LinkId=550986> para > Windows 10 > > De: Jacob Abdelfatah Ndioubnane <mailto:jacoba...@outlook.es> > Enviado: martes, 6 de febrero de 2018 22:36 > Para: Christophe Geuzaine <mailto:cgeuza...@ulg.ac.be>; gmsh@onelab.info > <mailto:gmsh@onelab.info>; gmsh-ow...@onelab.info > <mailto:gmsh-ow...@onelab.info>; gmsh-requ...@ace20.montefiore.ulg.ac.be > <mailto:gmsh-requ...@ace20.montefiore.ulg.ac.be>; G. D. McBain > <mailto:gdmcb...@protonmail.com> > Asunto: Boolean Fragments. Créate 3d mesh from surfaces. Surface Loop creates > aditional surfaces > > Hi gmsh users: > > I’m trying to créate a 3d mesh of a cube from a merged 3d surfaces to apply > physical groups easily. I applied the booleanFragments operator, and it > removes the aditional edges and vértices. However, when I créate a Surface > loop, automatically generates aditional surfaces(when i go to > tools;vissibility;tree appears 12 surfaces) it creates a , and the volume is > referenced to the dupplicate surfaces. Im able to créate both 2d and 3d > meses, but when i export into freefem as .mesh or .msh is not loaded > correctly. Is there any way to solve this problem. I attach the .geo script > below and also the .brep surfaces and the generated .mesh and .msh meses. > > // Gmsh project created on Tue Feb 06 20:13:28 2018 > SetFactory("OpenCASCADE"); > > Merge "Inlet.brep"; > Merge "Walls.brep"; > Merge "Outlet.brep"; > > s() = Surface "*"; > BooleanFragments{ Surface{s(0)}; Delete; }{ Surface{s({0:#s()-1})}; Delete; > }//+ > > > > > //+ > Surface Loop(1) = {1, 5, 2, 3, 6, 4}; > > Volume(1) = {1}; > > Thank you very much in advance. > > Best Regards > Jacob > > Enviado desde Correo <https://go.microsoft.com/fwlink/?LinkId=550986> para > Windows 10 > > > _______________________________________________ > gmsh mailing list > gmsh@onelab.info > http://onelab.info/mailman/listinfo/gmsh — Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine Free software: http://gmsh.info | http://getdp.info | http://onelab.info
_______________________________________________ gmsh mailing list gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh