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import v1.0.0-RC4 | 2009-05-20

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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Measure
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Lightness.php 9508 2008-05-23 10:56:41Z thomas $
*/
/**
* Implement needed classes
*/
require_once 'Zend/Measure/Exception.php';
require_once 'Zend/Measure/Abstract.php';
require_once 'Zend/Locale.php';
/**
* Class for handling temperature conversions
*
* @category Zend
* @package Zend_Measure
* @subpackage Zend_Measure_Lightness
* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Measure_Lightness extends Zend_Measure_Abstract
{
const STANDARD = 'CANDELA_PER_SQUARE_METER';
const APOSTILB = 'APOSTILB';
const BLONDEL = 'BLONDEL';
const CANDELA_PER_SQUARE_CENTIMETER = 'CANDELA_PER_SQUARE_CENTIMETER';
const CANDELA_PER_SQUARE_FOOT = 'CANDELA_PER_SQUARE_FOOT';
const CANDELA_PER_SQUARE_INCH = 'CANDELA_PER_SQUARE_INCH';
const CANDELA_PER_SQUARE_METER = 'CANDELA_PER_SQUARE_METER';
const FOOTLAMBERT = 'FOOTLAMBERT';
const KILOCANDELA_PER_SQUARE_CENTIMETER = 'KILOCANDELA_PER_SQUARE_CENTIMETER';
const KILOCANDELA_PER_SQUARE_FOOT = 'KILOCANDELA_PER_SQUARE_FOOT';
const KILOCANDELA_PER_SQUARE_INCH = 'KILOCANDELA_PER_SQUARE_INCH';
const KILOCANDELA_PER_SQUARE_METER = 'KILOCANDELA_PER_SQUARE_METER';
const LAMBERT = 'LAMBERT';
const MILLILAMBERT = 'MILLILAMBERT';
const NIT = 'NIT';
const STILB = 'STILB';
/**
* Calculations for all lightness units
*
* @var array
*/
protected $_units = array(
'APOSTILB' => array('0.31830989', 'asb'),
'BLONDEL' => array('0.31830989', 'blondel'),
'CANDELA_PER_SQUARE_CENTIMETER' => array('10000', 'cd/cm²'),
'CANDELA_PER_SQUARE_FOOT' => array('10.76391', 'cd/ft²'),
'CANDELA_PER_SQUARE_INCH' => array('1550.00304', 'cd/in²'),
'CANDELA_PER_SQUARE_METER' => array('1', 'cd/m²'),
'FOOTLAMBERT' => array('3.4262591', 'ftL'),
'KILOCANDELA_PER_SQUARE_CENTIMETER' => array('10000000', 'kcd/cm²'),
'KILOCANDELA_PER_SQUARE_FOOT' => array('10763.91', 'kcd/ft²'),
'KILOCANDELA_PER_SQUARE_INCH' => array('1550003.04', 'kcd/in²'),
'KILOCANDELA_PER_SQUARE_METER' => array('1000', 'kcd/m²'),
'LAMBERT' => array('3183.0989', 'L'),
'MILLILAMBERT' => array('3.1830989', 'mL'),
'NIT' => array('1', 'nt'),
'STILB' => array('10000', 'sb'),
'STANDARD' => 'CANDELA_PER_SQUARE_METER'
);
}