Grafika\Gd\DrawingObject\QuadraticBezier::setPixel PHP Method

    protected function setPixel($gd, $x, $y, $ar)
    {
        list($r, $g, $b) = $this->color->getRgb();
        $c = imagecolorallocatealpha($gd, $r, $g, $b, 127 * $ar);
        imagesetpixel($gd, $x, $y, $c);
    }