.LP
The TRIGGER is used to control the scheduling of a data path.
The trigger takes two input connections.  The first is the input connection
that provides the data flow for the output.  The second is the procedure or
other network which will will determine the timing for the trigger.  The
trigger will not allow the input to be scheduled until the second network
has finished executing.  When the second network has finished executing,
the trigger glyph will be executed, the input connection data is then 
propagated to the output filename.  The rest of the network connected to 
the glyph's output connection will then be active for scheduling and 
dispatching.
.SH 
Special Thanks To:
.LP
Mathew Yeates of NASA (JPL Division) for donating the TRIGGER glyph to 
cantata.
