in this post will be the files for this code lines in exportIFC.py sh = obj.Shape.removeSplitter() One IFC ist the one exported from FC, the other was created newly by pure IfcOS and the use of the brep file. cyl_removeSplitter_IFCOS.ifc cyl_removeSplitter_FC.ifc cyl_removeSplitter.brep

the base is the file from this post ... https://forum.freecad.org/viewtopic.php?t=77403&start=10#p674929 in export I added some lines of code to export the brep which will be used by the IfcOS serializer. in this post will be the files for this code lines in exportIFC.py sh = obj.Shape.copy() sh...

I slowly start to think it is a problem in serialiser of ifcos. I know how to determine this.

I will come back with results.

lots of stuff to read and test ... thanks guys ...

BTW: This is why I am asking ... viewtopic.php?p=675641#p675254

... but are you sure it "zeroes" the global placement? You should check with an object that is inside a App::Part with a not null placement.... ... No I am not sure. It did work for the objects I have tried with. If the global placement is applied it seams not to "zero" the plac...

Playing with IFC format and nurbs

| copy(...) | Create a copy of this shape | copy(copyGeom=True, copyMesh=False) -> Shape | -- | If copyMesh is True, triangulation contained in original shape will be | copied along with geometry. | If copyGeom is False, only topological objects will be copied, while | geometry and triangulation wi...

both do not incorporate the Placement into the vertices coordinates. They keep the placment in the placement not in the vertices coordinates ...

if removeSplitter() is used on a Shape the Shape returned has all placement incorporated into the vertices coordinates. What is the best way to archieve this without removeSplitter(), because this methods cleans the Shape. Is there any method around or does this needs to be done manually? cheers bernd

@yorik

Will you have a closer look to the scale and placement and brep string export problem or should I go for a PR with this workaround?

bernd