Reference Plane Properties

Select a reference plane, and view or modify its properties on the Properties palette.

Name Description
Construction
Wall Closure You can use a reference plane to define the point where walls wrap for doors and windows. Select this option to use the reference plane to define this point. This parameter is only available in the Family Editor.
Identity Data
Name The name of the reference plane.
Subcategory The name of the subcategory assigned to the reference plane.
Extents
Scope Box The scope box applied to the reference plane.
Other
Is Reference Sets the reference plane priority, during the creation of a family, and how the reference plane acts in a project. This means that you can dimension to the family or align to it. If you set a reference plane as a reference for all family types, then you can consistently dimension to that family type when you place it in your project. For example, you create a door family with 24", 30", and 36" types. For each type, you specify a reference plane as left. Then you place the new 24" door type in your project and dimension it 5' from an exterior wall. Then you decide to replace that 24" door with a 30" door. When you swap out the doors, Revit LT retains the 5' dimension. All named values (Center, Left, Right,...) and "Strong Reference" are strong references and have the highest priority for dimensioning and snapping. The predefined names can be used to help you when authoring families. All named values function the same regardless of the name used. "Weak Reference" value has a lower priority for dimensioning and snapping. "Not A Reference" will be ignored by dimensioning and snapping in the project environment.
Defines Origin Specifies where the cursor rests on the object you are placing. For example, as you place a rectangular column, the cursor rests at the centerline of the column shape.