* @brief get the low bound of the world * @param void * @return Vector3d */

* @brief get resolution of the world * @param void * @return float */

* @brief get the up bound of the world * @param void * @return Vector3d */

* @brief Return the average angle of an arbitrary number of given angles [rad] * @param angles vector containing all angles * @return average / mean

constructors and destructors