Copyright © ART-DECOR Expert Group and ART-DECOR Open Tools
see https://art-decor.org/mediawiki/index.php?title=Copyright
    
This program is free software; you can redistribute it and/or modify it under the terms of the
GNU Lesser General Public License as published by the Free Software Foundation; either version
2.1 of the License, or (at your option) any later version.
    
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Lesser General Public License for more details.
    
The full text of the license is available at http://www.gnu.org/copyleft/lesser.html