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NAME tw - "tweak" motors
SYNOPSIS tw motor
[motor2 ...] delta
[delta2 ...]
[ctime]
DESCRIPTION The tw macro is used to
interactively move one or more motors in small increments. Each
time you hit return the motor or motors specified in the
arguments will be moved the amount given by the corresponding
delta parameters. The delta parameters can
be of different signs for the different motors. You can change
directions for all the motors by typing + or
- (or p or n) before
hitting return. You can also enter a new (signed) delta for the
first motor for subsequent moves. The delta for the other motors
will be changed proportionally.
If the optional ctime parameter is given,
the results of counting for the specified time will be displayed
after each move. If the settling-time parameter
_sleep (set by the setscans
macro) is nonzero, counting will be delayed by the specified
time.
If the global variable TW_BEEP is nonzero, the
macro will beep when the moving and counting is finished for each
iteration. By default, beeping is off.
If the global variable TW_UPDATE is nonzero, the
moving and counting values will be updated on the screen using
the value of the standard UPDATE variable as the
delay between each update. By default, the updated mode is
enabled.
If the PRINTER global variable is non-null, the
beginning and ending positions of each tweaked motor will be
printed to the indicated device at the end of the tweaking or on
a ^C interrupt.
EXAMPLE tw th .01
tw tth th 1 .5 2
SEE ALSO
dscan
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Last Formatted Jul 14, 2008
Last Updated 02/28/01
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