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| author | Jaron Kent-Dobias <jaron@kent-dobias.com> | 2018-07-22 01:20:29 -0400 |
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| committer | Jaron Kent-Dobias <jaron@kent-dobias.com> | 2018-07-22 01:20:29 -0400 |
| commit | dd2c47db3512658858685c83dd772603203aaab1 (patch) | |
| tree | e029032fb62317237482844af9f1bbd3b5545c45 /lib/colors.h | |
| parent | e74305e932e45c0d2e69fd1c0a7313662fc47375 (diff) | |
| download | c++-dd2c47db3512658858685c83dd772603203aaab1.tar.gz c++-dd2c47db3512658858685c83dd772603203aaab1.tar.bz2 c++-dd2c47db3512658858685c83dd772603203aaab1.zip | |
potts now fully functional
Diffstat (limited to 'lib/colors.h')
| -rw-r--r-- | lib/colors.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/colors.h b/lib/colors.h new file mode 100644 index 0000000..04d39a8 --- /dev/null +++ b/lib/colors.h @@ -0,0 +1,34 @@ +#pragma once + +#include "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; + } +} + |