OPTICON : IDL software & widgets for controling GPIB devices (Klingers, etc.),
	acquiring/analyzing images from MAMA/CCD and estimating
	grating efficiencies/scatter, used by STIS/DGEF at NASA/GSFC.
	IDL code written by F.Varosi, 1994.

opticon-install.tar.Z	:	for the full first-time installation:

	ftp> bin
	ftp> get opticon-install.tar

	% tar xvf opticon-install.tar	# creates files in new sub-dir.
	% cd install.opticon		# change to newly created dir.
	% install_opticon		# execute install shell script.

Look at and if necessary edit the file idl_setup, then: source idl_setup
defines the alias: mosaic, opticon, or modion.
Alternatively, just use the "setenv IDL_STARTUP" and alias lines from idl_setup
in your own .login and/or .cshrc files.
It is assumed that the IDL Astronomy Library has already been installed.

To setup control of GPIB devices:

	Make sure  ~/opticon/ibsubs/gpib.so  exists
	and the NI-GPIB software is installed and configured.
	Look at and edit the file ~/opticon/setup_user.pro
	corresponding to the NI-GPIB configuration of devices
	(other examples are in ~/opticon/setup_*.pro).

To acquire MAMA data:

	cd ~/opticon
	cp  mama/macqmem.so  .
	mama/xmacq &

To acquire CCD data:

	cd ~/opticon
	cp  ccd/ccdmem.so  .
	ccd/cacq &

Note that you should not run both mama/xmacq and ccd/cacq at same time
because the code uses same shared memory for status block.

Other files:

	opticon.tar.Z	:	the OPTICON specific IDL code, get for updates.

	vlib.tar.Z	:	Varosi's general purpose IDL code library,
				must get for updates also.

	extra.tar.Z	:	Optional shareable object (*.so) libraries and
				executables for GPIB, MAMA, or CCD operations.

To update: get opticon.tar.Z, vlib.tar.Z, and extra.tar.Z
(place in directory install.opticon), then:

% untar		# execute shell script to install updates.