RVTDocs.com
Namespace: Autodesk.Revit.DB

FamilyInstanceReferenceType

Enumeration
Description:
Corresponds to the possible values of parameter "Is Reference" of reference planes and parameter "Reference" of reference lines in families.
Syntax 
public enum FamilyInstanceReferenceType
Unknown Namespace Members:
Name Description
Left Reference plane whose "Is Reference" parameter is set to "Left". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
CenterLeftRight Reference plane whose "Is Reference" parameter is set to "Center (Left/Right)". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
Right Reference plane whose "Is Reference" parameter is set to "Right". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
Front Reference plane whose "Is Reference" parameter is set to "Front". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
CenterFrontBack Reference plane whose "Is Reference" parameter is set to "Center (Front/Back)". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
Back Reference plane whose "Is Reference" parameter is set to "Back". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
Bottom Reference plane whose "Is Reference" parameter is set to "Bottom". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
CenterElevation Reference plane whose "Is Reference" parameter is set to "Center (Elevation)". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
Top Reference plane whose "Is Reference" parameter is set to "Top". There may be no more than one such reference plane in the family. This reference is stable: if there is a dimension to this reference of an instance, and the instance's type or family is replaced, the dimension will survive.
StrongReference Reference plane whose "Is Reference" parameter is set to "Strong Reference", or reference line whose "Reference" parameter is set to "Strong Reference". There may be multiple such reference planes and lines in the family. These references are not stable: if there is a dimension to such reference, and the instance's family is replaced, the dimension is not guaranteed to survive.
WeakReference Reference plane whose "Is Reference" parameter is set to "Weak Reference", or reference line whose "Reference" parameter is set to "Weak Reference". There may be multiple such reference planes and lines in the family. These references are not stable: if there is a dimension to such reference, and the instance's family is replaced, the dimension is not guaranteed to survive.
NotAReference This value is returned from FamilyInstance::getReferenceType if the reference does not correspond to any reference plane or reference line in the family.