public function __construct()
{
parent::__construct();
$this->initChartOption('colorAxis');
$this->initChartOption('noData');
}
/**
* (non-PHPdoc)
* @see \Highcharts\AbstractChart::getOptions()
*/
protected function getOptions()
{
$this->set('chart', array('type' => 'spline'));
$this->set('xAxis', array('categories' => $this->xLabels));
$this->set('yAxis', $this->yAxis);
$this->set('series', $this->series);
return parent::getOptions();
}