Thank you! Does it work also with STEP data imported from CAD?
Matthias > -----Ursprüngliche Nachricht----- > Von: Christophe Geuzaine [mailto:cgeuza...@ulg.ac.be] > Gesendet: Mittwoch, 3. Mai 2017 10:34 > An: Zenker, Dr. Matthias > Cc: andrew; gmsh@onelab.info > Betreff: Re: [Gmsh] boolean partitioning > > > Have a look at the new boolean examples, e.g. > > https://urldefense.proofpoint.com/v2/url?u=http- > 3A__gitlab.onelab.info_gmsh_gmsh_blob_master_demos_boolean_comps > olid.geo&d=DwIFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW- > Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=2mpe > DRom3Noibyq90RXwKUzWF1rJRcO6ZGHMbIFv5so&s=xHnc46KE5L6ugWGTfy > _YoQoMQy6J3MVGy7jh30SFFLo&e= > https://urldefense.proofpoint.com/v2/url?u=http- > 3A__gitlab.onelab.info_gmsh_gmsh_blob_master_demos_boolean_comps > olid2.geo&d=DwIFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW- > Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=2mpe > DRom3Noibyq90RXwKUzWF1rJRcO6ZGHMbIFv5so&s=NcLs864W46WNKIoHZ > E2UBNMZprqYawTICL8jZpa7UfM&e= > > BooleanFragments does exactly what you need. > > > > On 3 May 2017, at 10:14, Zenker, Dr. Matthias <Matthias.Zenker@erbe- > med.com> wrote: > > > > Hi, > > > > I would also be interested in that functionality. It would resolve the old > “duplicated surfaces” problem that forced me (and others) to leave gmsh > and do the meshing with Salomé, even though IMHO gmsh does a better job > especially in 3D meshing – in Salomé, only netgen is available as 3D algorithm > in the free version. > > BTW there seems to be a macro permitting to use gmsh in Salomé, see > > this post at the Salomé forum: > > https://urldefense.proofpoint.com/v2/url?u=http-3A__salome- > 2Dplatform. > > org_forum_forum-5F12_953948027- > 23494327180&d=DwIFaQ&c=7vND7vRFB1FzfxRX > > c-X80O-MJSZd5Q-IVyyYW- > Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57D > > > Mr4&m=2mpeDRom3Noibyq90RXwKUzWF1rJRcO6ZGHMbIFv5so&s=bweZW > T8PCF107y-xPl > > l629T-vfFUIANxsy48ZRnkG6Q&e= > > I haven’t tested it, though. > > To export a geometry from Salomé to gmsh, I have sometimes had success > using brep format. > > > > Matthias > > > > Von: andrew [mailto:armit...@gmail.com] > > Gesendet: Dienstag, 2. Mai 2017 19:58 > > An: gmsh@onelab.info > > Betreff: [Gmsh] boolean partitioning > > > > > > hi, > > > > In Salome which uses the opencascade model there is a Boolean operation > called partition. With this you can create a solid from two others but with a > shared face. A usage of that is the creation of meshes with internal walls in > it > with zero thickness aka 'baffles'. Is there a procedure in gmsh that can give > the same results given that it has implemented the same opencascade > model? Obviously there is a way to have such results if you give the precise > geometry but sometimes it is very difficult to cut geometries and it is > easier if > gmsh could do that. > > > > Attached is an image of a mesh with internal baffles created with > partitioning and the geometry that created it. I would prefer t if gmsh could > do the meshing but I haven't found a way to load the geometry to gmsh from > Salome. > > > > kind regards > > > > Andrew > > > > > > Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen > > Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: > > Stuttgart HRB 380137 > > > > _______________________________________________ > > gmsh mailing list > > gmsh@onelab.info > > https://urldefense.proofpoint.com/v2/url?u=http- > 3A__onelab.info_mailma > > n_listinfo_gmsh&d=DwIFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q- > IVyyYW-Ff2gY > > > &r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=2mpeDRom > 3Noibyq90RXwK > > UzWF1rJRcO6ZGHMbIFv5so&s=1HcJ-0ygfx48c3Da61c9yCkbIwdzENB- > tgduaWTphlg&e > > = > > -- > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer Science > https://urldefense.proofpoint.com/v2/url?u=http- > 3A__www.montefiore.ulg.ac.be_- > 7Egeuzaine&d=DwIFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q-IVyyYW- > Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=2mpe > DRom3Noibyq90RXwKUzWF1rJRcO6ZGHMbIFv5so&s=Rsm5qmhcl3JpPSdvAti > aBKbqvMhdzkyxX8uE3jKAKHE&e= > > Free software: https://urldefense.proofpoint.com/v2/url?u=http- > 3A__gmsh.info&d=DwIFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q- > IVyyYW- > Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=2mpe > DRom3Noibyq90RXwKUzWF1rJRcO6ZGHMbIFv5so&s=5_brZJaZk840OH5gfAB > Xdz5Zx3tnyWbIxZ_vyUwBPx0&e= | > https://urldefense.proofpoint.com/v2/url?u=http- > 3A__getdp.info&d=DwIFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q- > IVyyYW- > Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=2mpe > DRom3Noibyq90RXwKUzWF1rJRcO6ZGHMbIFv5so&s=0o8fOH2Rmfqo2itgtsiJ > b7x8fphtSImxHSJPALRPblU&e= | > https://urldefense.proofpoint.com/v2/url?u=http- > 3A__onelab.info&d=DwIFaQ&c=7vND7vRFB1FzfxRXc-X80O-MJSZd5Q- > IVyyYW- > Ff2gY&r=3enlI3TuQDmO9BnMCnxq2Mfm4tAO6Z3_Ae1Yc57DMr4&m=2mpe > DRom3Noibyq90RXwKUzWF1rJRcO6ZGHMbIFv5so&s=aINKFEeEpZBn6P7toEf > THkiX9PY4exsvpqL5Sbt0HxU&e= ________________________________ Erbe Elektromedizin GmbH Firmensitz: 72072 Tuebingen Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede Registergericht: Stuttgart HRB 380137 _______________________________________________ gmsh mailing list gmsh@onelab.info http://onelab.info/mailman/listinfo/gmsh