> On 30 Jan 2015, at 18:43, Mark Smith <[email protected]> wrote: > > sorry > step file attached
The Salome "cut and merge" actually crashes on my machine; our internal routine seems to work (but it slow). I've added the possibility to choose which algorithm to use - you can give it a try with tomorrow's nightly build. > > From: Christophe Geuzaine <[email protected]> > To: Mark Smith <[email protected]> > Sent: Friday, January 30, 2015 10:20 AM > Subject: Re: [Gmsh] GMSH renumbers elemntaty tags on reload > > > > On 30 Jan 2015, at 10:54, Mark Smith <[email protected]> wrote: > > > > Hi Christophe, > > Find attached a simple step file that shows the problem of face renumbering > > on reload, I enable the cut and merge faces to get rid of duplicate > > surfaces at mating solids. > > Hi Mark - can you send the step? (You sent the solidworks part) > > > Thanks for you time. > > Best regards > > Mark > > > > From: Christophe Geuzaine <[email protected]> > > To: Mark Smith <[email protected]> > > Cc: "[email protected]" <[email protected]> > > Sent: Thursday, January 29, 2015 6:18 PM > > Subject: Re: [Gmsh] GMSH renumbers elemntaty tags on reload > > > > > > > On 29 Jan 2015, at 13:37, Mark Smith <[email protected]> wrote: > > > > > > Hi Christophe, > > > I agree that saving the cad geometry to a .geo file it is not the way to > > > go but at least the surface numbers don't change on reload ;-) > > > I have some other cad geometry where I don't get this problem, which is > > > why perhaps you haven't seen it? have you any other suggestions I could > > > try? > > > > Maybe the best would be for you to send an (small) step file that exhibits > > the problem? We could try to see where the non-deterministic numbering > > comes from. > > > > > Regards > > > Mark > > > > > > From: Christophe Geuzaine <[email protected]> > > > To: Mark Smith <[email protected]> > > > Cc: "[email protected]" <[email protected]> > > > Sent: Thursday, January 29, 2015 11:19 AM > > > Subject: Re: [Gmsh] GMSH renumbers elemntaty tags on reload > > > > > > > > > > On 29 Jan 2015, at 10:45, Mark Smith <[email protected]> wrote: > > > > > > > > Hi Christophe, > > > > Unfortunately it makes no difference ;-( > > > > I used cadexchanger from http://www.cadexchanger.com/ to convert the > > > > step file into a .brep file but this suffers with the same problem. > > > > If is do file: save as and type say file2.geo and with the GEO options > > > > box "save physical group lables" ONLY ticked I get a file with all the > > > > points, lines line loops etc. When I lad this the element tag numbers > > > > stay fixed, ( it is relatively simple geometry consisting of volumes > > > > bounded by plane surfaces) but I cannot get the surfaces to be filled > > > > (rendered) but only crossed faces even when I set > > > > > > Mark - Do not save your .brep/.step as a .geo! Gmsh is designed to work > > > directly with the native files - "translating" them to .geo is only there > > > for very specific uses or debugging purposes: the .geo CAD kernel is far > > > too rudimentary to handle all the complexities of .step/.brep > > > > > > > > > > Geometry.SurfaceType = 2 this makes it difficult to pick surfaces to > > > > put into surface physical groups infact changing Geometry.SurfaceType > > > > to 0 1 or 2 make no difference to the way the surfaces are displayed? > > > > Strangely if I load in my cad geometry file Merge "file.STEP"; etc then > > > > the surfaces displayed are as expected if one changes the setting of > > > > Geometry.SurfaceType, any ideas? > > > > > > > > Thanks in advance. > > > > Best regards > > > > Mark > > > > > > > > > > > > From: Christophe Geuzaine <[email protected]> > > > > To: Mark Smith <[email protected]> > > > > Cc: "[email protected]" <[email protected]> > > > > Sent: Wednesday, January 28, 2015 7:11 PM > > > > Subject: Re: [Gmsh] GMSH renumbers elemntaty tags on reload > > > > > > > > > > > > > On 28 Jan 2015, at 15:36, Mark Smith <[email protected]> wrote: > > > > > > > > > > > > > > > Gmsh version 2.8.5 > > > > > > > > > > Hi, I load a step file generated in solidworks saved in AP203 or > > > > > AP214 format and load in into GMSH using a .geo file with the > > > > > following lines > > > > > > > > > > // in gmsh options-geometry make sure the "cut and merge faces" is > > > > > checked > > > > > // to remove duplicate entities on import of STEP file > > > > > Merge "file.STEP"; > > > > > Geometry.AutoCoherence = 1; > > > > > Coherence; > > > > > > > > > > in the options:geometry I get the model to display the surface labels > > > > > with their elementary tags number, if I hit reload the tag numbers > > > > > change this make defining physical surfaces impossible since the > > > > > surfaces shown in the surface physical groups keep changing;-( > > > > > I have not had this behaviour before and at this moment it is a show > > > > > stopper, is there a way of preventing this behaviour? > > > > > > > > > > > > > I don't see this behavior when I do the same thing over here (note that > > > > "Geometry.AutoCoherence = 1; Coherence;" will have no effect on your > > > > STEP data)... Does adding "Delete All;" before the "Merge" command help? > > > > > > > > > > > > > > > > > > > > > > > > > Thanks in advance > > > > > Mark > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > gmsh mailing list > > > > > [email protected] > > > > > 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > Prof. Christophe Geuzaine > > > University of Liege, Electrical Engineering and Computer Science > > > http://www.montefiore.ulg.ac.be/~geuzaine > > > > > > > > > > > > > > > > -- > > Prof. Christophe Geuzaine > > University of Liege, Electrical Engineering and Computer Science > > http://www.montefiore.ulg.ac.be/~geuzaine > > > > > > > > > > <gmshtest.SLDPRT> > > > > > -- > Prof. Christophe Geuzaine > University of Liege, Electrical Engineering and Computer Science > http://www.montefiore.ulg.ac.be/~geuzaine > > > > > <gmshtest.STEP> -- Prof. Christophe Geuzaine University of Liege, Electrical Engineering and Computer Science http://www.montefiore.ulg.ac.be/~geuzaine _______________________________________________ gmsh mailing list [email protected] http://www.geuz.org/mailman/listinfo/gmsh
