| Entité | Attributs |
|---|---|
| IfcRoot | GlobalId, OwnerHistory, Name, Description |
| IfcObject | ObjectType |
| IfcProduct | ObjectPlacement, Representation |
| IfcElement | Tag |
| Nom | Type |
|---|---|
| PredefinedType |
IfcProjectionElementTypeEnum : Projection Element Type Enum
USERDEFINED, NOTDEFINED |
| Area |
| Volume |