SMESH and SGEOM depend on OCC. But SMESH do *not* depend on SGEOM. Basically, SMESH take a TopoDS_Shape and mesh it. This TopoDS_Shape can be generated with the PAF (i.e. SGEOM based) or OCC.
OCC topology/geometry algorithms -> TopoDS_Shape -> SMESH -> Meshed shape or PAF -> TopoDS_Shape -> SMESH -> Meshed shape You can also mix PAF/OCC to produce TopoDS_Shape. Thomas 2009/12/13 Henrik Rudstrom <hrudst...@googlemail.com> > Thanks for the info. > > So if i understand correctly this is only for user interaction / > interactive application development, and not really necessary for creating > simple/static geometry generator etc..? How about the other salome modules, > the meshing for example, does this require any use of the SGEOM module or is > it independent from that? > Basically what im trying to figure out is where i should start learning, > and what parts i can skip for now, or if there are modules that make other > modules obsolete... > > Henrik > > > Hi Henrik, >> >> Our initial purpose, with Jelle, was to add parametric modeling features >> to pythonOCC. OCC 6.3.0 provides a mechanism (topological naming) making it >> possible. This is however quite hard to understand and implement. >> >> The Salomé project already offers a parametric modeling module, named >> GEOM, that is based upon OCC 6.3.0 topological naming. This module was >> extracted from Salomé and released as a standalone package by Fotis ( >> http://sf.net/projects/salomegeometry). When we started to work on >> parametric modeling with Jelle, we had three choices: >> >> - implement something completely new from scratch, >> - port the C++ salomegeometry code to pythonOCC, >> - wrap to python the C++ salomegeometry library. >> >> We decided to choose the third solution (the quickest way to have >> something running, easier to maintain). The wrapper to SalomeGeometry is >> composed of the following additional python modules: Archimede, SGEOM, >> GEOM_Algo, GEOM_Impl, BlockFix, NMTDS, NMTools, Partition, ShHealOper, >> Sketecher. Each of this python module is deeply integrated to pythonOCC (for >> instance, the SGEOM modules depend on TDocStd, MMgt, TCollection, TFunction >> and Standard). You can use all the OCC algorithms over a TopoDS_Shape >> generated with a GEOM_algo object. >> >> To simplify the access to all the objects/methods, Jelle and I developped >> a package named 'Parametric Application Framework' (PAF), that is intended >> to abstract the salomegeometry internals, and make something more pythonic. >> The PAF still need to be improved. >> >> Regards, >> >> Thomas >> >> >> >> _______________________________________________ >> Pythonocc-users mailing list >> Pythonocc-users@gna.org >> https://mail.gna.org/listinfo/pythonocc-users >> >> > > _______________________________________________ > Pythonocc-users mailing list > Pythonocc-users@gna.org > https://mail.gna.org/listinfo/pythonocc-users > >
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