/**
* Find distance to another point
*
* @param Point $point2
* @param string $unit
* @param int $formula formula to use, should either be Location::HAVERSINE or Location::VINCENTY. Defaults to
* Location::$defaultFormula
*
* @return float the distance
*/
public function distanceTo(Point $point2, $unit = 'km', $formula = null)
{
return Location::calculateDistance($this, $point2, $unit, $formula);
}
