Placing Reference Lines

Using the Place Reference tool

Row reference lines are placed using the Row Reference split button in the Tools panel. The dropdown offers two options:

• Place Center Reference — for center sections
• Place End Reference — for side sections aligned to an aisle edge

After selecting an option, the command behaves like the standard Revit model line tool. Choose a line or arc type and click to draw. The correct Performance Seating linestyle is applied automatically.

Using standard Revit model lines

Because a row reference line is simply a model line with a specific linestyle, you may also use the standard Revit model line tool. The line must be assigned the Center or End linestyle name configured in Project Defaults. This is a common approach when offsetting from slab edges.

Geometry requirements

• Any non-closed line or arc may be used.
• A closed circle or full ellipse will not work and will produce an error message.
• On curved references, avoid radii that are too tight for adjacent seat standards to clear each other. The application does not compensate for corners or overly tight curves.

Insertion point offset

Reference lines should be placed at the seat insertion point — the pivot location used for rotating seats along curved rows. This typically means offsetting inward from a step or slab edge. Each seat family has a type parameter called PB_Plan_Datum_Offset that holds the recommended offset distance (1'-0" for the Generic Fixed Seat).