These parameters is exported when I export to IFC using IFC common property set in IFC 2x3. I cant seem to fetch the parameters in custom userdefined property set. But that is what I want. Because when delivering rebar model without drawings, freeform rebar and varying rebars must be able to show single value together with other information.
ISOCD3766ShapeParameter_a, ISOCD3766ShapeParameter_b and so on.
Also they are not exporting to IFC common property set using IFC 4.