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Copyright

The MolScript v2.1 program, its source code and its documentation files are all

copyright © 1997-1998 Per Kraulis

unless otherwise noted. There is no copyright on the example files.

MolScript is owned by Per Kraulis, and is marketed on his behalf by Avatar Software AB.

Source code written by other people

MolScript uses some software written by other people, either directly as integrated parts of the source code, or as calls to external libraries. Here follows the copyright statements relating to these external codes:

jitter.h

The file jitter.h contains the jittering matrix data used by the accumulation aliasing option (-accum)for the OpenGL rendering.

/*
 * (c) Copyright 1993, Silicon Graphics, Inc.
 * ALL RIGHTS RESERVED 
 * Permission to use, copy, modify, and distribute this software for 
 * any purpose and without fee is hereby granted, provided that the above
 * copyright notice appear in all copies and that both the copyright notice
 * and this permission notice appear in supporting documentation, and that 
 * the name of Silicon Graphics, Inc. not be used in advertising
 * or publicity pertaining to distribution of the software without specific,
 * written prior permission. 
 *
 * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
 * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL SILICON
 * GRAPHICS, INC.  BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
 * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
 * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
 * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
 * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC.  HAS BEEN
 * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
 * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
 * 
 * US Government Users Restricted Rights 
 * Use, duplication, or disclosure by the Government is subject to
 * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
 * (c)(1)(ii) of the Rights in Technical Data and Computer Software
 * clause at DFARS 252.227-7013 and/or in similar or successor
 * clauses in the FAR or the DOD or NASA FAR Supplement.
 * Unpublished-- rights reserved under the copyright laws of the
 * United States.  Contractor/manufacturer is Silicon Graphics,
 * Inc., 2011 N.  Shoreline Blvd., Mountain View, CA 94039-7311.
 *
 * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
 */
/*

glutstroke.h

The glutstroke.h file contains the character data structures for the GLUT library, which are needed for the Raster3D character implementation. This source code file is included in the distribution for technical reasons.

/* Copyright (c) Mark J. Kilgard, 1994. */

/* This program is freely distributable without licensing fees 
   and is provided without guarantee or warrantee expressed or 
   implied. This program is -not- in the public domain. */

regex.c

The regex code contains the algorithm for regular expression evaluation used for the name comparisons in the selection mechanism in MolScript.

/*
 * regcomp, regexec and regerror
 *
 *	Copyright (c) 1986 by University of Toronto.
 *	Written by Henry Spencer.  Not derived from licensed software.
 *
 *	Permission is granted to anyone to use this software for any
 *	purpose on any computer system, and to redistribute it freely,
 *	subject to the following restrictions:
 *
 *	1. The author is not responsible for the consequences of use of
 *		this software, no matter how awful, even if they arise
 *		from defects in it.
 *
 *	2. The origin of this software must not be misrepresented, either
 *		by explicit claim or by omission.
 *
 *	3. Altered versions must be plainly marked as such, and must not
 *		be misrepresented as being the original software.
 *
 * Beware that some of this code is subtly aware of the way operator
 * precedence is structured in regular expressions.  Serious changes in
 * regular-expression syntax might require a total rethink.
 *
 * Per Kraulis
 *  29-Jan-1997  converted to ANSI C
 *  18-Jun-1997  changed argument tests into assert's
 *  17-Sep-1997  added function 'regcomp_pjk', which takes a MolScript-style
 *               regular expression and compiles it into a 'regexp'
 */

GLUT

GLUT is the API used by MolScript to make the window system and OpenGL work together. It is used by the OpenGL implementation and all image file formats.

Note that this library is not included in the MolScript distribution: you will have to obtain it yourself from the site given here.

NOTICE:  The OpenGL Utility Toolkit (GLUT) distribution contains source
code published in a book titled "Programming OpenGL for the X Window
System" (ISBN: 0-201-48359-9) published by Addison-Wesley.  The
programs and associated files contained in the distribution were
developed by Mark J. Kilgard and are Copyright 1994, 1995, 1996 by Mark
J. Kilgard (unless otherwise noted).  The programs are not in the
public domain, but they are freely distributable without licensing
fees.  These programs are provided without guarantee or warrantee
expressed or implied.

JPEG

The JPEG library from the Independent JPEG Group is used for the JPEG image file format.

Note that this library is not included in the MolScript distribution: you will have to obtain it yourself from the site given here.

LEGAL ISSUES
============

In plain English:

1. We don't promise that this software works.  (But if you find any bugs,
   please let us know!)
2. You can use this software for whatever you want.  You don't have to pay us.
3. You may not pretend that you wrote this software.  If you use it in a
   program, you must acknowledge somewhere in your documentation that
   you've used the IJG code.

In legalese:

The authors make NO WARRANTY or representation, either express or implied,
with respect to this software, its quality, accuracy, merchantability, or
fitness for a particular purpose.  This software is provided "AS IS", and you,
its user, assume the entire risk as to its quality and accuracy.

This software is copyright (C) 1991-1996, Thomas G. Lane.
All Rights Reserved except as specified below.

Permission is hereby granted to use, copy, modify, and distribute this
software (or portions thereof) for any purpose, without fee, subject to these
conditions:
(1) If any part of the source code for this software is distributed, then this
README file must be included, with this copyright and no-warranty notice
unaltered; and any additions, deletions, or changes to the original files
must be clearly indicated in accompanying documentation.
(2) If only executable code is distributed, then the accompanying
documentation must state that "this software is based in part on the work of
the Independent JPEG Group".
(3) Permission for use of this software is granted only if the user accepts
full responsibility for any undesirable consequences; the authors accept
NO LIABILITY for damages of any kind.

These conditions apply to any software derived from or based on the IJG code,
not just to the unmodified library.  If you use our work, you ought to
acknowledge us.

Permission is NOT granted for the use of any IJG author's name or company name
in advertising or publicity relating to this software or products derived from
it.  This software may be referred to only as "the Independent JPEG Group's
software".

We specifically permit and encourage the use of this software as the basis of
commercial products, provided that all warranty or liability claims are
assumed by the product vendor.


ansi2knr.c is included in this distribution by permission of L. Peter Deutsch,
sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, CA.
ansi2knr.c is NOT covered by the above copyright and conditions, but instead
by the usual distribution terms of the Free Software Foundation; principally,
that you must include source code if you redistribute it.  (See the file
ansi2knr.c for full details.)  However, since ansi2knr.c is not needed as part
of any program generated from the IJG code, this does not limit you more than
the foregoing paragraphs do.

The configuration script "configure" was produced with GNU Autoconf.  It
is copyright by the Free Software Foundation but is freely distributable.

It appears that the arithmetic coding option of the JPEG spec is covered by
patents owned by IBM, AT&T, and Mitsubishi.  Hence arithmetic coding cannot
legally be used without obtaining one or more licenses.  For this reason,
support for arithmetic coding has been removed from the free JPEG software.
(Since arithmetic coding provides only a marginal gain over the unpatented
Huffman mode, it is unlikely that very many implementations will support it.)
So far as we are aware, there are no patent restrictions on the remaining
code.

WARNING: Unisys has begun to enforce their patent on LZW compression against
GIF encoders and decoders.  You will need a license from Unisys to use the
included rdgif.c or wrgif.c files in a commercial or shareware application.
At this time, Unisys is not enforcing their patent against freeware, so
distribution of this package remains legal.  However, we intend to remove
GIF support from the IJG package as soon as a suitable replacement format
becomes reasonably popular.

We are required to state that
    "The Graphics Interchange Format(c) is the Copyright property of
    CompuServe Incorporated.  GIF(sm) is a Service Mark property of
    CompuServe Incorporated."

PNG

The PNG reference library (libpng) is used for the PNG image file format.

Note that this library is not included in the MolScript distribution: you will have to obtain it yourself from the site given here.

/* png.h - header file for PNG reference library

   libpng 1.0 beta 6 - version 0.96
   For conditions of distribution and use, see copyright notice in png.h
   Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
   Copyright (c) 1996, 1997 Andreas Dilger
   May 12, 1997

   BETA NOTICE:
      This is a beta version.  It reads and writes valid files on the
      platforms I have, and has had a wide testing program.  You may
      have to modify the includes below to get it to work on your
      system, and you may have to supply the correct compiler flags in
      the makefile if you can't find a makefile suitable for your
      operating system/compiler combination.  Read libpng.txt for more
      information, including how to contact the authors if you have any
      problems, or if you want your compiler/platform to be supported in
      the next official libpng release.

   See libpng.txt for more information.

   Contributing Authors:
      John Bowler
      Sam Bushell
      Kevin Bracey
      Andreas Dilger
      Magnus Holmgren
      Dave Martindale
      Greg Roelofs
      Guy Eric Schalnat
      Paul Schmidt
      Tom Tanner
      Tim Wegner

   The contributing authors would like to thank all those who helped
   with testing, bug fixes, and patience.  This wouldn't have been
   possible without all of you.

   Thanks to Frank J. T. Wojcik for helping with the documentation.

   The PNG Reference Library is supplied "AS IS".  The Contributing Authors
   and Group 42, Inc. disclaim all warranties, expressed or implied,
   including, without limitation, the warranties of merchantability and of
   fitness for any purpose.  The Contributing Authors and Group 42, Inc.
   assume no liability for direct, indirect, incidental, special, exemplary,
   or consequential damages, which may result from the use of the PNG
   Reference Library, even if advised of the possibility of such damage.

   Permission is hereby granted to use, copy, modify, and distribute this
   source code, or portions hereof, for any purpose, without fee, subject
   to the following restrictions:
   1. The origin of this source code must not be misrepresented.
   2. Altered versions must be plainly marked as such and must not be
      misrepresented as being the original source.
   3. This Copyright notice may not be removed or altered from any source or
      altered source distribution.

   The Contributing Authors and Group 42, Inc. specifically permit, without
   fee, and encourage the use of this source code as a component to
   supporting the PNG file format in commercial products.  If you use this
   source code in a product, acknowledgment is not required but would be
   appreciated.
*/

zlib

The zlib library contains general purpose compression routines used by the PNG library for the PNG image file format.

Note that this library is not included in the MolScript distribution: you will have to obtain it yourself from the site given here.

Acknowledgments:

  The deflate format used by zlib was defined by Phil Katz. The deflate
  and zlib specifications were written by Peter Deutsch. Thanks to all the
  people who reported problems and suggested various improvements in zlib;
  they are too numerous to cite here.

Copyright notice:

 (C) 1995-1996 Jean-loup Gailly and Mark Adler

  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages
  arising from the use of this software.

  Permission is granted to anyone to use this software for any purpose,
  including commercial applications, and to alter it and redistribute it
  freely, subject to the following restrictions:

  1. The origin of this software must not be misrepresented; you must not
     claim that you wrote the original software. If you use this software
     in a product, an acknowledgment in the product documentation would be
     appreciated but is not required.
  2. Altered source versions must be plainly marked as such, and must not be
     misrepresented as being the original software.
  3. This notice may not be removed or altered from any source distribution.

  Jean-loup Gailly        Mark Adler
  gzip@prep.ai.mit.edu    madler@alumni.caltech.edu

If you use the zlib library in a product, we would appreciate *not*
receiving lengthy legal documents to sign. The sources are provided
for free but without warranty of any kind.  The library has been
entirely written by Jean-loup Gailly and Mark Adler; it does not
include third-party code.

If you redistribute modified sources, we would appreciate that you include
in the file ChangeLog history information documenting your changes.

gd 1.3

The gd 1.3 library is a C library used for the GIF image file format.

Note that this library is not included in the MolScript distribution: you will have to obtain it yourself from the site given here.

COPYRIGHT STATEMENT FOLLOWS THIS LINE

     Portions copyright 1994, 1995, 1996, 1997, 1998, by Cold Spring
     Harbor Laboratory. Funded under Grant P41-RR02188 by the National
     Institutes of Health.
     
     Portions copyright 1996, 1997, 1998, by Boutell.Com, Inc.
     
     GIF decompression code copyright 1990, 1991, 1993, by David Koblas
     (koblas@netcom.com).
     
     Non-LZW-based GIF compression code copyright 1998, by Hutchison
     Avenue Software Corporation (http://www.hasc.com/, info@hasc.com).
     
     Permission has been granted to copy and distribute gd in any
     context, including a commercial application, provided that this
     notice is present in user-accessible supporting documentation.
     
     This does not affect your ownership of the derived work itself, and
     the intent is to assure proper credit for the authors of gd, not to
     interfere with your productive use of gd. If you have questions,
     ask. "Derived works" includes all programs that utilize the
     library. Credit must be given in user-accessible documentation.
     
     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. This software is
     provided "as is" without express or implied warranty.
     
END OF COPYRIGHT STATEMENT

   Version 1.3 features the following changes:
   
   Non-LZW-based GIF compression code
          Version 1.3 contains GIF compression code that uses simple Run
          Length Encoding instead of LZW compression, while still
          retaining compatibility with normal LZW-based GIF decoders
          (your browser will still like your GIFs). LZW compression is
          patented by Unisys. This is why there have been no new versions
          of gd for a long time. THANKS to Hutchison Avenue Software
          Corporation for contributing this code. THE NEW CODE PRODUCES
          LARGER GIFS AND IS NOT WELL SUITED TO PHOTOGRAPHIC IMAGES. THIS
          IS A LEGAL ISSUE. IT IS NOT A QUESTION OF TECHNICAL SKILL.
          PLEASE DON'T COMPLAIN ABOUT THE SIZE OF GIF OUTPUT. THANKS!

   ...          
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