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Diffstat (limited to 'graphics/epix/angle_units.cc')
-rw-r--r-- | graphics/epix/angle_units.cc | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/graphics/epix/angle_units.cc b/graphics/epix/angle_units.cc deleted file mode 100644 index cbc8973703..0000000000 --- a/graphics/epix/angle_units.cc +++ /dev/null @@ -1,94 +0,0 @@ -/* - * angle_units.cc -- Implementation of ePiX's angular units - * - * This file is part of ePiX, a C++ library for creating high-quality - * figures in LaTeX - * - * Version 1.1.22 - * Last Change: September 24, 2007 - */ - -/* - * Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 - * Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh> - * Department of Mathematics and Computer Science - * College of the Holy Cross - * Worcester, MA, 01610-2395, USA - */ - -/* - * ePiX 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 2 of the License, or - * (at your option) any later version. - * - * ePiX 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 ePiX; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include "constants.h" -#include "angle_units.h" - -namespace ePiX { - - angle_state::angle_state() - : m_rad_per_unit(1.0), - m_unit_per_deg(PI_180), - m_rev_per_unit(1.0/TWO_PI) { } - - void angle_state::set_radians_mode() - { - m_rad_per_unit = 1.0; - m_unit_per_deg = PI_180; - m_rev_per_unit = 1.0/TWO_PI; - } - - void angle_state::set_degrees_mode() - { - m_rad_per_unit = PI_180; - m_unit_per_deg = 1.0; - m_rev_per_unit = 1.0/360; - } - - void angle_state::set_revolutions_mode() - { - m_rad_per_unit = TWO_PI; - m_unit_per_deg = 1.0/360; - m_rev_per_unit = 1.0; - } - - - double angle_state::to_radians(double t) - { - return t *= m_rad_per_unit; - } - - // result lies in (-180, 180] - double angle_state::to_degrees(double t) - { - t *= m_rev_per_unit; - - t -= 0.5; // shift half a turn - t -= ceil(t); // map to (-1,0] - t += 0.5; // shift to (-0.5, 0.5] - - return t *= 360.0; - } - - double angle_state::from_degrees(double t) - { - return t *= m_unit_per_deg; - } - - angle_state& the_angle_style() - { - static angle_state* the_angle_state(new angle_state()); - return *the_angle_state; - } -} // end of namespace |