2 Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/chromaticity.h
21 * @brief Chromaticity class.
24 #ifndef DCP_CHROMATICITY_H
25 #define DCP_CHROMATICITY_H
31 /** @class Chromaticity
32 * @brief A representation of a x,y,z chromaticity, where z = 1 - x - y
42 Chromaticity (double x_, double y_)
54 /** @return true if this Chromaticity's x and y are within epsilon of other */
55 bool about_equal (Chromaticity const & other, float epsilon) const {
56 return std::fabs (x - other.x) < epsilon && std::fabs (y - other.y) < epsilon;