The Visual library is Copyright (c) 2000, 2001, 2002, 2003, 2004,
	and 2005 by David Scherer and others.  See "What's New" in the 
	documentation for a complete list of contributors.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the names of the authors may not be 
used in advertising or publicity pertaining to distribution of the 
software without specific, written prior permission.

THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN 
NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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The following copyright notice applies to the Polygon module distributed 
with Visual for the convenience of our users under the following terms:

"This distribution contains code from the GPC Library, and/or code 
resulting from the use of the GPC Library. This usage has been 
authorized by The University of Manchester, on the understanding 
that the GPC-related features are used only in the context of this 
distribution. It is not permitted to extract the GPC code from the 
distribution as the basis for commercial exploitation, unless a 
GPC Commercial Use Licence is obtained from The University of 
Manchester, contact: http://www.cs.man.ac.uk/~toby/gpc/".

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The following copyright notice applies to the files src/num_util* and 
include/num_util* which are distributed with Visual for the convenience of
our users under the following terms:

num_util is Copyright (c) 2003 by Rhys Goldstein, Chris Seymour and 
Phil Austin.

Boost Software License - Version 1.0 - August 17th, 2003

Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:

The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.