block.zone.containing
Syntax
Get the zone that contains the given position. By default, all zones are searched. However, if the optional argument b is set true, then only visible zones are searched.
bzp - block zone pointer
v - position b - optional flag that determines if only visible blocks are searched b = \(true\)). Be default b = \(false\)
block.zone.condition
block.zone.discharge
9.1.13