/************************************************************************* * Copyright (C) 2008 Tavian Barnes * * * * This file is part of Dimension. * * * * Dimension 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. * * * * Dimension 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 Lesser General Public * * License along with this program. If not, see * * . * *************************************************************************/ /* * Types to represent color. */ #ifndef DIMENSION_COLOR_H #define DIMENSION_COLOR_H #ifdef __cplusplus extern "C" { #endif /* CIE 1931 XYZ color. */ typedef struct { double X, Y, Z; /* X, Y, and Z are the tristimulus values of a color in CIE 1931 XYZ color space. We use an unlimited light model here, where the range of X, Y, and Z are unbounded >= 0. */ double alpha, trans; /* Alpha transparancy only lets light of this color through; regular transparancy lets all colors through */ } dmnsn_color; #ifdef __cplusplus } #endif #endif /* DIMENSION_COLOR_H */