/**
* Sets the shadow for this series. Refer to default options.
* @param array $opts refer to the defaults for the kind of options
* @return \Altamira\Series provides fluent interface
*/
public function setShadow($opts = array('use' => true, 'angle' => 45, 'offset' => 1.25, 'depth' => 3, 'alpha' => 0.1))
{
if ($this->jsWriter instanceof \Altamira\JsWriter\Ability\Shadowable) {
$this->jsWriter->setShadow($this->getTitle(), $opts);
}
return $this;
}