/**
* Calculates the length of the line (distance between the two
* coordinates).
*
* @param DistanceInterface $calculator instance of distance calculation class
*
* @return float
*/
public function getLength(DistanceInterface $calculator)
{
return $calculator->getDistance($this->point1, $this->point2);
}
/**
* Calculates the distance between the given coordinate
* and this coordinate.
*
* @param Coordinate $coordinate
* @param DistanceInterface $calculator instance of distance calculation class
*
* @return float
*/
public function getDistance(Coordinate $coordinate, DistanceInterface $calculator)
{
return $calculator->getDistance($this, $coordinate);
}
