AIPS HELP file for GRBLINK in 31DEC22
As of Thu Jul 7 3:50:42 2022
GRBLINK: Verb which blinks 2 TV graphics planes
GRCHAN 0.0 7.0 1st graphics channel to use
GR2CHAN 0.0 7.0 2nd graphics channel to use
Cursor X gives rate, cursor Y gives ratio, any button
Use: To compare graphics planes of the TV by blinking them.
While blinking: the cursor X position controls the blink
rate, the cursor Y position controls the proportion of
time spent on each plane, and any button causes the verb to
quit. Note that 2 graphics planes may be displayed
simultaneously on the screen (i.e. GRCH = 12; GRON) and will be
displayed in a complementary color where the 2 agree (for
planes 1-4, lower numbered plane shows for planes 5-8),
GRCHAN.....Selects graphics channel for "channel A"
GR2CHAN....Selects graphics channel for "channel B"
Either out of range -> use 1 and 2.