void ght_find_theta_range(LDP laser_ref, LDP laser_sens, const double *x0, double max_linear_correction, double max_angular_correction_deg, int interval, gsl_histogram *hist, int *num_correspondences)
void ght_one_shot(LDP laser_ref, LDP laser_sens, const double *x0, double max_linear_correction, double max_angular_correction_deg, int interval, double *x, int *num_correspondences)