It seem IfcSectionedSpine would be the closest to what you described. Unfortunately i don't think BB opens it, or has an interface for it, currently.
Also, in IFC4x3, I think varying profiles like (IfcSectionedSurface, IfcSectionedSolidHorizontal, IfcSweptDiskSolidPolygonal, IfcExtrudedAreaSolid) can be placed along IfcAlignment, as well.
Comments
It seem IfcSectionedSpine would be the closest to what you described. Unfortunately i don't think BB opens it, or has an interface for it, currently.
Also, in IFC4x3, I think varying profiles like (IfcSectionedSurface, IfcSectionedSolidHorizontal, IfcSweptDiskSolidPolygonal, IfcExtrudedAreaSolid) can be placed along IfcAlignment, as well.
Indeed that's what I was looking for, thanks. Nice to see IFC has it