/**
* Create a size
*
* @param integer $width The with
* @param integer $height The height
* @param string $widthUnit The with unit
* @param string $heightUnit The height unit
*/
public function __construct($width = 1, $height = 1, $widthUnit = null, $heightUnit = null)
{
parent::__construct($width, $height, $widthUnit, $heightUnit);
}
