💿🐜 Antkeeper source code
https://antkeeper.com
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48 lines
1.4 KiB
48 lines
1.4 KiB
/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef ANTKEEPER_ASTRO_ILLUMINANCE_HPP
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#define ANTKEEPER_ASTRO_ILLUMINANCE_HPP
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namespace astro
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{
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/**
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* Converts apparent (visual) magnitude to lux.
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*
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* @param mv Illuminance in apparent magnitude.
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* @return Illuminance in lux.
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*
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* @see https://en.wikipedia.org/wiki/Illuminance
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*/
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double vmag_to_lux(double mv);
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/**
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* Converts lux to apparent (visual) magnitude.
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*
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* @param ev Illuminance in lux.
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* @return Illuminance in apparent magnitude.
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*
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* @see https://en.wikipedia.org/wiki/Illuminance
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*/
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double lux_to_vmag(double ev);
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} // namespace astro
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#endif // ANTKEEPER_ASTRO_ILLUMINANCE_HPP
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