/**
* Calculate the extra details for radar axes
*/
protected function CalcAxes($h_by_count = false, $bar = false)
{
parent::CalcAxes($h_by_count, $bar);
$w = $this->width - $this->pad_left - $this->pad_right;
$h = $this->height - $this->pad_top - $this->pad_bottom;
$this->xc = $this->pad_left + $w / 2;
$this->yc = $this->pad_top + $h / 2;
$this->radius = min($w, $h) / 2;
}
