------------------------------------------------------------------------

GFX Library -- common code for graphics programming
Michael Garland, 1997.

With the exceptions noted below (see "Copying Exceptions"), this
software is in the public domain and is provided AS IS.  Use it at
YOUR OWN RISK.

------------------------------------------------------------------------

About GFX
---------

This is my library of common code for graphics programming.  I have
tried to keep things somewhat organized, but some modules are still
rather ad hoc.  Basically, I make improvements when the programs I'm
developing require it.  Thus, development on this library has been
pretty uneven.  Still, I have collected various useful bits of code.


Copying Exceptions
------------------

I am the author of the majority of the code included in this library,
and I have placed this code in the public domain.  However, there are
certain bits of code that I have included from other sources and which
are subject to different restrictions.

	- geom/ProjectH.cxx is copyrighted and free for non-commercial
	  usage only.  See the source file for more information.

	- sys/getopt* was taken from the GNU C Library v2.0.4 which
	  is distributed under the LGPL
	  <http://www.fsf.org/copyleft/lgpl.html>

	- math/jacobi.cxx and math/cholesky.cxx are both derived from
	  Numerical Recipes in C.  They are free for non-commercial
	  use only.

	- manip/arcball/* was originally written by Ken Shoemake and
	  published in Graphics Gems IV.  See the accompanying README
	  for more details.
