public function getLength()
    {
        return sqrt(
            pow(($this->getPointB()->getAbscissa() - $this->getPointA()->getAbscissa()), 2)
            +
            pow(($this->getPointB()->getOrdinate() - $this->getPointA()->getOrdinate()), 2)
        );
    }
public function getLength()
    {
        return sqrt(
            pow(($this->getPointB()->getAbscissa() - $this->getPointA()->getAbscissa()), 2)
            +
            pow(($this->getPointB()->getOrdinate() - $this->getPointA()->getOrdinate()), 2)
        );
    }
public function getLength ( ) { return sqrt ( pow ( ( $ this -> getPointB ( ) -> getAbscissa ( ) - $ this -> getPointA ( ) -> getAbscissa ( ) ) , 2 ) + pow ( ( $ this -> getPointB ( ) -> getOrdinate ( ) - $ this -> getPointA ( ) -> getOrdinate ( ) ) , 2 ) ) ; }
Get the length of the segment

@return  float
Get the length of the segment