gvSIG. Desktop Geographic Information System. Copyright (C) 2007-2020 gvSIG Association. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . For any additional information, do not hesitate to contact us at info AT gvsig.com, or visit our website www.gvsig.com.