/**
* adds feature points to a line chart
* @param float $x x value
* @param float $y y value
* @param int $ds current dataset
* @param int $i current data
* @param string $cap caption
*/
private function featPoint($x, $y, $ds, $i)
{
if (!isset($this->fps)) {
return false;
}
if (!isset($this->fps[$ds][$i])) {
return false;
}
parent::imgEllipseFilled($x, $y, 4, 4, $this->fps[$ds][$i][1]);
parent::imgString(1, $x + 5, $y, $this->fps[$ds][$i][0], $this->fps[$ds][$i][1]);
}
