/****************************************************************************
 *
 * MODULE:       nviz
 * AUTHOR(S):    Bill Brown, Terry Baker, Mark Astley and David Gerdes
 *               (CERL and UIUC, original contributors)
 *               Bob Covill, Tekmap Consulting
 *               Markus Neteler <neteler itc.it>,
 *               Bernhard Reiter <bernhard intevation.de>, 
 *               Glynn Clements <glynn gclements.plus.com>,
 *               Huidae Cho <grass4u gmail.com>,
 *               Philip Warner <pjw rhyme.com.au>,
 *               Helena Mitasova <hmitaso unity.ncsu.edu>,
 *               Tomas Paudits, 
 *               Pierre de Mouveaux <p_de_mouveaux hotmail.com>,
 *               Radim Blazek <radim.blazek gmail.com>,
 *               Brad Douglas <rez touchofmadness.com>,
 *               Hamish Bowman <hamish_b yahoo.com>,
 *               Paul Kelly <paul-grass stjohnspoint.co.uk>,
 *               Massimo Cuomo <m.cuomo acsys.it>,
 *               Roberto Flor <flor itc.it>,
 *               Michael Barton <michael.barton asu.edu>,
 *               Cedric Shock <cedricgrass shockfamily.net>,
 *               Alex Shevlakov <sixote yahoo.com>,
 *               Eric G. Miller <egm2 jps.net>,
 *               Justin Hickey <jhickey hpcc.nectec.or.th>
 * PURPOSE:      visualization and animation tool
 * COPYRIGHT:    (C) 2002-2008 by the GRASS Development Team
 *
 *               This program is free software under the GNU General Public
 *               License (>=v2). Read the file COPYING that comes with GRASS
 *               for details.
 *
 *****************************************************************************/