PhpOffice\PhpPresentation\Slide\AbstractSlide::getOffsetX PHP Method

    public function getOffsetX()
    {
        if ($this->offsetX === null) {
            $offsets = GeometryCalculator::calculateOffsets($this);
            $this->offsetX = $offsets[GeometryCalculator::X];
            $this->offsetY = $offsets[GeometryCalculator::Y];
        }
        return $this->offsetX;
    }