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Diffstat (limited to 'examples/include/colors.h')
| -rw-r--r-- | examples/include/colors.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/examples/include/colors.h b/examples/include/colors.h new file mode 100644 index 0000000..abf137c --- /dev/null +++ b/examples/include/colors.h @@ -0,0 +1,34 @@ +#pragma once + +#include <wolff/types.h> + +double hue_to_R(double theta) { + if (((M_PI / 3 <= theta) && (theta < 2 * M_PI / 3)) || ((4 * M_PI / 3 <= theta) && (theta < 5 * M_PI / 3))) { + return 1.0 - fabs(fmod(theta / (2 * M_PI / 6), 2) - 1.0); + } else if (((0 <= theta) && (theta < M_PI / 3)) || ((5 * M_PI / 3 <= theta) && (theta <= 2 * M_PI))) { + return 1.0; + } else { + return 0.0; + } +} + +double hue_to_G(double theta) { + if (((0 <= theta) && (theta < M_PI / 3)) || ((M_PI <= theta) && (theta < 4 * M_PI / 3))) { + return 1.0 - fabs(fmod(theta / (2 * M_PI / 6), 2) - 1.0); + } else if (((M_PI / 3 <= theta) && (theta < 2 * M_PI / 3)) || ((2 * M_PI / 3 <= theta) && (theta < M_PI))) { + return 1.0; + } else { + return 0.0; + } +} + +double hue_to_B(double theta) { + if (((2 * M_PI / 3 <= theta) && (theta < M_PI)) || ((5 * M_PI / 3 <= theta) && (theta <= 2 * M_PI))) { + return 1.0 - fabs(fmod(theta / (2 * M_PI / 6), 2) - 1.0); + } else if (((M_PI <= theta) && (theta < 4 * M_PI / 3)) || ((4 * M_PI / 3 <= theta) && (theta < 5 * M_PI / 3))) { + return 1.0; + } else { + return 0.0; + } +} + |