x1 = $x1; $this->y1 = $y1; $this->x2 = $x2; $this->y2 = $y2; $this->x3 = $x3; $this->y3 = $y3; } public function getX1() : float { return $this->x1; } public function getY1() : float { return $this->y1; } public function getX2() : float { return $this->x2; } public function getY2() : float { return $this->y2; } public function getX3() : float { return $this->x3; } public function getY3() : float { return $this->y3; } /** * @return self */ public function translate(float $x, float $y) : OperationInterface { return new self( $this->x1 + $x, $this->y1 + $y, $this->x2 + $x, $this->y2 + $y, $this->x3 + $x, $this->y3 + $y ); } }