Material property sets associated with a selected element, resolved through
its material association. Fans out a layer/profile/constituent set to its
member IfcMaterials (where Pset_Material* typically lives) and also checks
the set definition itself. Returns one group per material that has psets.
Material property sets associated with a selected element, resolved through its material association. Fans out a layer/profile/constituent set to its member IfcMaterials (where Pset_Material* typically lives) and also checks the set definition itself. Returns one group per material that has psets.