| Category | Zend |
| Package | Zend_Measure |
| Subpackage | Zend_Measure_Illumination |
| Copyright | Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com) |
| License | http://framework.zend.com/license/new-bsd New BSD License |
Class Zend_Measure_Illumination
class Zend_Measure_Illumination extends Zend_Measure_Abstract
Defined in line 37 of file Measure/Illumination.php.
Class for handling illumination conversions
Summary
Class constants
| STANDARD | |
| FOOTCANDLE | |
| KILOLUX | |
| LUMEN_PER_SQUARE_CENTIMETER | |
| LUMEN_PER_SQUARE_FOOT | |
| LUMEN_PER_SQUARE_INCH | |
| LUMEN_PER_SQUARE_METER | |
| LUX | |
| METERCANDLE | |
| MILLIPHOT | |
| NOX | |
| PHOT |
Instance fields
| # $_units | Calculations for all illumination units |
Details
Class constants
const LUMEN_PER_SQUARE_CENTIMETER = 'LUMEN_PER_SQUARE_CENTIMETER'Defined in Illumination.php, line 43
Instance fields
protected $_units = array(
'FOOTCANDLE' => array('10.7639104', 'fc'),
'KILOLUX' => array('1000', 'klx'),
'LUMEN_PER_SQUARE_CENTIMETER' => array('10000', 'lm/cm²'),
'LUMEN_PER_SQUARE_FOOT' => array('10.7639104', 'lm/ft²'),
'LUMEN_PER_SQUARE_INCH' => array('1550.0030976', 'lm/in²'),
'LUMEN_PER_SQUARE_METER' => array('1', 'lm/m²'),
'LUX' => array('1', 'lx'),
'METERCANDLE' => array('1', 'metercandle'),
'MILLIPHOT' => array('10', 'mph'),
'NOX' => array('0.001', 'nox'),
'PHOT' => array('10000', 'ph'),
'STANDARD' => 'LUX'
)Calculations for all illumination units
Var
array
Defined in Measure/Illumination.php, line 58