protected function _getCoordinates() {
        $itemTransformString = (string)$this->_nodeConfig->attributes()->ItemTransform;
        $itemTransformArray = explode(' ', $itemTransformString);
        $coordinates = array(
            'x' => $itemTransformArray[count($itemTransformArray) - 2],
            'y' => $itemTransformArray[count($itemTransformArray) - 1]
        );

        return $coordinates;
    }