/**
* Sets the label on this chart for a given axis
* @param string $axis x, y, z
* @param string $label the label
* @return \Altamira\Chart provides fluent interface
*/
public function setAxisLabel($axis, $label)
{
if (in_array($axis, array('x', 'y', 'z'))) {
$originalAxisOptions = $this->jsWriter->getOption('axes', array());
$desiredAxisOptions = array("{$axis}axis" => array('label' => $label));
$this->jsWriter->setOption('axes', array_merge_recursive($originalAxisOptions, $desiredAxisOptions));
}
return $this;
}
