	This package is a revision to the package submitted
on the Chicago spring 1980 RSX/IAS tape. There are 6 changes.
1. a bug in the cross hair cursor support has been eliminated.
2. a bug in SCALE.MAC which caused an occasional floating point
   to interger overflow error has been eliminated.
3. to run under RSX11M you should just assemble all the *.MAC'S
     and build your library.(the original version incorrectly directed
     you to do some conditional assemblies)
4. there is a conditional assembly statement to change in PLOTPRIMS.MAC
   and PLTDAT.MAC to allow the package to support a Tektronix 4025
   (the user program must call TK4025) 
5. for users in an overlayed enviroment only PLTDAT.OBJ needs to
   be in the root.
6. a bug in the call to 'HOME' has been fixed to allow it to work on
    all terminal types.
	All the fortran programs on the tape except TK4025 are demonstration
    programs that should be compiled and linked to the library before
    you try to use them.
	SFGL70 is a graphics package which supports Tektronix
4006,4010,4014 AND 4025 terminals. It's useful feature is that in
most cases it will only add approximately 1K words to the user task.
	When using the file SFGL70.DOC to learn how to use the package,
    ignore the references to PDP-6 equivalent. They were needed internally
    at UTRC because this package replaced an older graphics package our
    users had been using.
	This file explains the SFGL70 package submitted to the
1980 FALL DECUS Symposium by Ken Demers. If you encounter
********************************************************
editor's note: I cannot find any submission by Ken Demers
on the fall 1980 tape.  The only stuff I can find is on
the Chicago spring 1980 tape.
**********************************************************
any problems or have any questions please call me at
United Technologies Research Center East Hartford, Connecticut
    (203) 727-7527. The package can run under IAS and RSX-11M.
I also have a version that can be conditionally
assembled for RT-11(not on this tape). SFGL70.OLB is the library to be 
linked with the user task. The distributed version has been built with IAS.
To run under RSX-11M assessmble to source modules and
create a library from the object modules.
The user manual is in RUNNOFF format in the files SFGL70.RNO
and SFGL70.DOC.
	I origionally received the PLOTPRIMS.MAC routine from
Steve Davis of Haskins Labs New Haven, Ct. It was origionally
 developed at the Speech Communications Research Lab Inc.
Santa Barbara, Ca. However I have made various changes to 
enhance the total package which I developed. 
    One last comment: Many people around the USA are currently
using the package and find it very useful. The package will
work on a VT100 (if it has the hardware to make it look like
a Tektronix 4010). There will be future enhancements to take
full advantage of the VT100's additional capability.

					Thanks,

					   Ken
