clears the plot but keep it available

* @brief Converts radians to degrees. * @param radians Radians. * @return Degrees. */

* @brief Converts degrees to radians. * @param degrees Degrees. * @return Radians. */

* @brief Returns the cross product. * @param vectorA Vector A. * @param vectorB Vector B. * @return Cross product. */

* @brief Returns the vector magnitude squared. * @param vector Vector. * @return Vector magnitude squared. */

* @brief Returns the multiplication of a vector by a scalar. * @param vector Vector. * @param scalar Scalar. * @return Multiplication of a vector b

* @brief Returns the normalised vector. * @param vector Vector. * @return Normalised vector. */

* @brief Returns vector B subtracted from vector A. * @param vectorA Vector A. * @param vectorB Vector B. * @return Vector B subtracted from vector

* @brief Returns the arc sine of the value. * @param value Value. * @return Arc sine of the value. */

* @brief Returns the sum of two vectors. * @param vectorA Vector A. * @param vectorB Vector B. * @return Sum of two vectors. */

* @brief Returns the quaternion describing the sensor relative to the Earth. * @param ahrs AHRS algorithm structure. * @return Quaternion describing

* @brief Resets the AHRS algorithm. This is equivalent to reinitialising the * algorithm while maintaining the current settings. * @param ahrs AHRS

* @brief Sets the heading of the orientation measurement provided by the AHRS * algorithm. This function can be used to reset drift in heading when

* @brief Sets the AHRS algorithm settings. * @param ahrs AHRS algorithm structure. * @param settings Settings. */

* @brief Updates the AHRS algorithm using the gyroscope, accelerometer, and * magnetometer measurements. * @param ahrs AHRS algorithm structure. *

* @brief Gyroscope and accelerometer calibration model. * @param uncalibrated Uncalibrated measurement. * @param misalignment Misalignment matrix.

* @brief Calculates the reciprocal of the square root. * See https://pizer.wordpress.com/2008/10/12/fast-inverse-square-root/ * @param x Operand. *

* @brief Returns the multiplication of a matrix with a vector. * @param matrix Matrix. * @param vector Vector. * @return Multiplication of a matrix

* @brief Calculates the Hadamard product (element-wise multiplication). * @param vectorA Vector A. * @param vectorB Vector B. * @return Hadamard pr

* @brief Returns true if the vector is zero. * @param vector Vector. * @return True if the vector is zero. */

* @brief Returns the vector magnitude. * @param vector Vector. * @return Vector magnitude. */

* @brief Returns the AHRS algorithm flags. * @param ahrs AHRS algorithm structure. * @return AHRS algorithm flags. */

* @brief Returns the AHRS algorithm internal states. * @param ahrs AHRS algorithm structure. * @return AHRS algorithm internal states. */

* @brief Initialises the AHRS algorithm structure. * @param ahrs AHRS algorithm structure. */

* @brief Updates the AHRS algorithm using the gyroscope and accelerometer * measurements only. * @param ahrs AHRS algorithm structure. * @param gyr

* @brief Calculates the heading relative to magnetic north. * @param accelerometer Accelerometer measurement in any calibrated units. * @param magne

* @brief Initialises the gyroscope offset algorithm. * @param offset Gyroscope offset algorithm structure. * @param sampleRate Sample rate in Hz. *

* @brief Updates the gyroscope offset algorithm and returns the corrected * gyroscope measurement. * @param offset Gyroscope offset algorithm struct

* @brief Returns the sum of two quaternions. * @param quaternionA Quaternion A. * @param quaternionB Quaternion B. * @return Sum of two quaternions

* @brief Returns the multiplication of two quaternions. * @param quaternionA Quaternion A (to be post-multiplied). * @param quaternionB Quaternion B

* @brief Returns the multiplication of a quaternion with a vector. This is a * normal quaternion multiplication where the vector is treated a * qua

* @brief Returns the normalised quaternion. * @param quaternion Quaternion. * @return Normalised quaternion. */

* @brief Converts a quaternion to ZYX Euler angles in degrees. * @param quaternion Quaternion. * @return Euler angles in degrees. */

* @brief Returns the sum of the elements. * @param vector Vector. * @return Sum of the elements. */

main function in LiDAR IMU calibration **//

* @brief : Caculate the rotation matrix (quaternion)) * from LiDAR ground point cloud normal vector frame to earth gravity vector frame * @o