Taken from an example program delivered with OpenMesh.
/*===========================================================================*\
- OpenMesh * Copyright (C) 2001-2012 by Computer Graphics Group, RWTH Aachen * www.openmesh.org *
- ------------------------------------------------------------------------—* This file is part of OpenMesh. *
- OpenMesh 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 3 of * the License, or (at your option) any later version with the * following exceptions: *
- If other files instantiate templates or use macros * or inline functions from this file, or you compile this file and * link it with other files to produce an executable, this file does * not by itself cause the resulting executable to be covered by the * GNU Lesser General Public License. This exception does not however * invalidate any other reasons why the executable file might be * covered by the GNU Lesser General Public License. *
- OpenMesh 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. *
- You should have received a copy of the GNU LesserGeneral Public * License along with OpenMesh. If not, * see http://www.gnu.org/licenses/. *
- *===========================================================================