x1; } /** * lower left y-coordinate * @return int */ public function getY1(): int { return $this->y1; } /** * lower right x-coordinate * @return int */ public function getX2(): int { return $this->x2; } /** * lower right y-coordinate * @return int */ public function getY2(): int { return $this->y2; } /** * upper right x-coordinate * @return int */ public function getX3(): int { return $this->x3; } /** * upper right y-coordinate * @return int */ public function getY3(): int { return $this->y3; } /** * upper left x-coordinate * @return int */ public function getX4(): int { return $this->x4; } /** * upper left y-coordinate * @return int */ public function getY4(): int { return $this->y4; } }