library/Zend/Measure/Temperature.php

   1 <?php
   2 /**
   3  * Zend Framework
   4  *
   5  * LICENSE
   6  *
   7  * This source file is subject to the new BSD license that is bundled
   8  * with this package in the file LICENSE.txt.
   9  * It is also available through the world-wide-web at this URL:
  10  * http://framework.zend.com/license/new-bsd
  11  * If you did not receive a copy of the license and are unable to
  12  * obtain it through the world-wide-web, please send an email
  13  * to license@zend.com so we can send you a copy immediately.
  14  *
  15  * @category  Zend
  16  * @package   Zend_Measure
  17  * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  18  * @license   http://framework.zend.com/license/new-bsd     New BSD License
  19  * @version   $Id: Temperature.php 16220 2009-06-21 19:49:21Z thomas $
  20  */
  21
  22 /**
  23  * Implement needed classes
  24  */
  25 require_once 'Zend/Measure/Abstract.php';
  26 require_once 'Zend/Locale.php';
  27
  28 /**
  29  * Class for handling temperature conversions
  30  *
  31  * @category   Zend
  32  * @package    Zend_Measure
  33  * @subpackage Zend_Measure_Temperature
  34  * @copyright  Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
  35  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  36  */
  37 class Zend_Measure_Temperature extends Zend_Measure_Abstract
  38 {
  39     const STANDARD = 'KELVIN';
  40
  41     const CELSIUS    = 'CELSIUS';
  42     const FAHRENHEIT = 'FAHRENHEIT';
  43     const RANKINE    = 'RANKINE';
  44     const REAUMUR    = 'REAUMUR';
  45     const KELVIN     = 'KELVIN';
  46
  47     /**
  48      * Calculations for all temperature units
  49      *
  50      * @var array
  51      */
  52     protected $_units = array(
  53         'CELSIUS'    => array(array('' => '1', '+' => '273.15'),'°C'),
  54         'FAHRENHEIT' => array(array('' => '1', '-' => '32', '/' => '1.8', '+' => '273.15'),'°F'),
  55         'RANKINE'    => array(array('' => '1', '/' => '1.8'),'°R'),
  56         'REAUMUR'    => array(array('' => '1', '*' => '1.25', '+' => '273.15'),'°r'),
  57         'KELVIN'     => array(1,'°K'),
  58         'STANDARD'   => 'KELVIN'
  59     );
  60 }