public function Rectangle($x1, $y1, $x2, $y2)
    {
        list($x1, $y1) = $this->scale->Translate($x1, $y1);
        list($x2, $y2) = $this->scale->Translate($x2, $y2);
        $this->img->Rectangle($x1, $y1, $x2, $y2);