---=== ObjectGraph Notes and Installation Instructions ===---

ObjectGraph was written by:
   Christopher Penney
   Intelligent Systems Laboratory / Department of Computer Science
   Michigan State University
   penney@cps.msu.edu
   http://web.cps.msu.edu/~penney/

---Step #1 - Read the Credits----------------

THIS CODE IS COPYRIGHT 1995 BY THE INTELLIGENT SYSTEMS LABORATORY AT
MICHIGAN STATE UNIVERSITY.

ObjectGraph was written by Christopher Penney (penney@cps.msu.edu) --
a student of the Intelligent Systems Laboratory in the Department of
Computer Science at Michigan State University.  World wide web
browsers should look at http://web.cps.msu.edu/~penney/ and
http://isl.cps.msu.edu/.

ObjectGraph is in the public domain and may be used by anyone in
original or modified form provided credit is given to both the author
and the Intelligent Systems Laboratory at Mighigan State University in
any software the code is used in.

ObjectGraph may only be redistributed in its original form and package
(including this file).

THIS CODE IS COPYRIGHT 1995 BY THE INTELLIGENT SYSTEMS LABORATORY AT
MICHIGAN STATE UNIVERSITY.

---Step #2 - Read the Disclaimer----------------

As with all public domain software, there is no warantee or guarentee
so you need to backup or fileout your work before installation.  It
might be best to start with a fresh image to experiment with
ObjectGraph.

---Step #3 - Read the Warning----------------

Because ObjectGraph is a widget, it modifies the system's list of
available widgets.  If you have added a widget that is not part of the
default image, it will dissappear when you install ObjectGraph.  To
prevent this, edit the two files called "PlSpcsFr.st" and
"PTSpcsFr.st".  In there, add the necessary elements to the array so
that your extra widgets are defined.

---Step #4 - Install ObjectGraph----------------

This code only works in ParcPlace Systems, Inc.'s VisualWorks 2.0
SmallTalk implementation.

To install ObjectGraph simply do the following:
 - open a file list
 - go to the directory holding the ObjectGraph filins
 - select "LoadOG.st"
 - modify the directory path to the directory with the ObjectGraph fileins
 - select the contents of the LoadOG.st file
 - do it

Optionally, you can simply file in every file in the directory.

Note that the file "GrfBrows.st" is only an example and is not needed
to acctualy use ObjectGraph.  I recommend you file it in though... I
believe an example to be the best way to learn to use ObjectGraph.

---Step #5 - Getting Started----------------

The best way to get started is to do the following:
 First) Go through the VERY BASIC example in EXAMPLE.TXT
 Second) Go through the class comments and method comments in the various
         ObjectGraph classes.  Look at the class comments first!
 Third) Look over the example filed in from GrfBrows.st.  It is a start
        of a ObjectGraph based class browser (I stress "A START").  This
        example is in the class "GraphBasedBrowser".  This class will show
        up in the resource finder after you update it.

If you can't get ObjectGraph to work or have questions, please send me
mail (penney@cps.msu.edu) and let me know what doens't work and I will
try to help.

I'd also very much appreciate any suggestions... ObjectGraph is still
under development and there are a lot of things I'd like to fix.

Good Luck,

Chris Penney
penney@cps.msu.edu