enum IfcObjectTypeEnum {
kIfcObjectTypeEnum_PRODUCT,
kIfcObjectTypeEnum_PROCESS,
kIfcObjectTypeEnum_CONTROL,
kIfcObjectTypeEnum_RESOURCE,
kIfcObjectTypeEnum_ACTOR,
kIfcObjectTypeEnum_GROUP,
kIfcObjectTypeEnum_PROJECT,
kIfcObjectTypeEnum_NOTDEFINED,
kIfcObjectTypeEnum_unset
};