
The area of the stage which can be seen by everyone seated in the auditorium. In some (badly designed!) theatres, a member of the audience sitting at the ends of certain rows, can only see two thirds of the stage!
Found on
http://www.encyclo.co.uk/local/21207

Lines indicating the limits of what an audience can see. The sightlines can be drawn on a plan or determined by someone in the auditorium.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

The edges of the audience view of the stage.
Found on
https://hdos.org.uk/gen/glossary.html

The area of the stage which can be seen by everyone seated in the auditorium. In some (badly designed!) theatres, a member of the audience sitting at the ends of certain rows, can only see two thirds of the stage!
Found on
https://www.encyclo.co.uk/local/21782
No exact match found.