/** * \file angle.h * \brief Various trigoniometric helper functions * * Authors: * Johan Engelen <goejendaagh@zonnet.nl> * * Copyright (C) 2007 authors * * This library is free software; you can redistribute it and/or * modify it either under the terms of the GNU Lesser General Public * License version 2.1 as published by the Free Software Foundation * (the "LGPL") or, at your option, under the terms of the Mozilla * Public License Version 1.1 (the "MPL"). If you do not alter this * notice, a recipient may use your version of this file under either * the MPL or the LGPL. * * You should have received a copy of the LGPL along with this library * in the file COPYING-LGPL-2.1; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * You should have received a copy of the MPL along with this library * in the file COPYING-MPL-1.1 * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY * OF ANY KIND, either express or implied. See the LGPL or the MPL for * the specific language governing rights and limitations. * */ #ifndef LIB2GEOM_SEEN_ANGLE_H #define LIB2GEOM_SEEN_ANGLE_H 00038 namespace Geom { #ifndef M_PI # define M_PI 3.14159265358979323846 #endif inline double deg_to_rad(double deg) { return deg*M_PI/180.0;} inline double rad_to_deg(double rad) { return rad*180.0/M_PI;} } #endif

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