DEIMOS user script rotatloop

Name

rotatloop -- step the rotator and pause between moves

Purpose

Given a stepsize, starting and ending rotator values, and a
desired time interval for sleeping, this script will move the
rotator and pause for the desired amount of time to allow one to
acquire data. The default action is to mvoe from the negative
to the positive limits of rotation in 10-degree increments, pausing
for 10 seconds between moves.

Usage

rotatloop [-silent] [-prompt] [-goi] [start [stop [step [sleep]]]]

Arguments

-silent = do not beep between moves
-goi = acquire an image at each position
-prompt = require user to press <Enter> to move
start = starting DEIMOS PA value [deg; default=-410]
stop = ending DEIMOS PA value [deg; default=310]
step = increment between moves [deg; default=10]
sleep = number of seconds to sleep [sec; default=10]

Output

Transcript written to STDOUT

Restrictions

- Rotator must be in "Pos" mode to enable user control
- Angles must be provided in integer format
- If "-goi" is specified, pausing and sleeping are NOT done

Exit values

0 = normal completion
1 = wrong number of arguments

Examples

1) Acquire an image every 10 deg between the rotator limits:
rotatloop -goi

2) Rotate from 0 to 360 in 15 deg increments, pausing at each
position until the observer presses a key:
rotatloop -prompt 0 360 15