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- /*
- * Copyright (C) 2021 Christopher J. Howard
- *
- * This file is part of Antkeeper source code.
- *
- * Antkeeper source code 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 3 of the License, or
- * (at your option) any later version.
- *
- * Antkeeper source code 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 Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #ifndef ANTKEEPER_ASTRO_ILLUMINANCE_HPP
- #define ANTKEEPER_ASTRO_ILLUMINANCE_HPP
-
- namespace astro
- {
-
- /**
- * Converts apparent (visual) magnitude to lux.
- *
- * @param mv Illuminance in apparent magnitude.
- * @return Illuminance in lux.
- *
- * @see https://en.wikipedia.org/wiki/Illuminance
- */
- double vmag_to_lux(double mv);
-
- /**
- * Converts lux to apparent (visual) magnitude.
- *
- * @param ev Illuminance in lux.
- * @return Illuminance in apparent magnitude.
- *
- * @see https://en.wikipedia.org/wiki/Illuminance
- */
- double lux_to_vmag(double ev);
-
- } // namespace astro
-
- #endif // ANTKEEPER_ASTRO_ILLUMINANCE_HPP
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