2019-07-17 20:08:50 +00:00
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Measure
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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2019-07-17 20:16:19 +00:00
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* @version $Id: Illumination.php 13209 2008-12-13 22:34:06Z thomas $
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2019-07-17 20:08:50 +00:00
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*/
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/**
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* Implement needed classes
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*/
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require_once 'Zend/Measure/Abstract.php';
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require_once 'Zend/Locale.php';
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/**
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* Class for handling illumination conversions
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*
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* @category Zend
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* @package Zend_Measure
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* @subpackage Zend_Measure_Illumination
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Measure_Illumination extends Zend_Measure_Abstract
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{
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const STANDARD = 'LUX';
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const FOOTCANDLE = 'FOOTCANDLE';
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const KILOLUX = 'KILOLUX';
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const LUMEN_PER_SQUARE_CENTIMETER = 'LUMEN_PER_SQUARE_CENTIMETER';
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const LUMEN_PER_SQUARE_FOOT = 'LUMEN_PER_SQUARE_FOOT';
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const LUMEN_PER_SQUARE_INCH = 'LUMEN_PER_SQUARE_INCH';
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const LUMEN_PER_SQUARE_METER = 'LUMEN_PER_SQUARE_METER';
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const LUX = 'LUX';
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const METERCANDLE = 'METERCANDLE';
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const MILLIPHOT = 'MILLIPHOT';
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const NOX = 'NOX';
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const PHOT = 'PHOT';
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/**
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* Calculations for all illumination units
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*
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* @var array
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*/
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protected $_units = array(
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'FOOTCANDLE' => array('10.7639104', 'fc'),
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'KILOLUX' => array('1000', 'klx'),
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'LUMEN_PER_SQUARE_CENTIMETER' => array('10000', 'lm/cm²'),
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'LUMEN_PER_SQUARE_FOOT' => array('10.7639104', 'lm/ft²'),
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'LUMEN_PER_SQUARE_INCH' => array('1550.0030976', 'lm/in²'),
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'LUMEN_PER_SQUARE_METER' => array('1', 'lm/m²'),
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'LUX' => array('1', 'lx'),
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'METERCANDLE' => array('1', 'metercandle'),
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'MILLIPHOT' => array('10', 'mph'),
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'NOX' => array('0.001', 'nox'),
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'PHOT' => array('10000', 'ph'),
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'STANDARD' => 'LUX'
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);
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}
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