18 void timer_callback();
19 void imu_callback(
const double stamp,
const Eigen::Vector3d& linear_acc,
const Eigen::Vector3d& angular_vel);
20 void points_callback(
const double stamp,
const std::shared_ptr<RawPoints>& raw_points);
23 std::chrono::high_resolution_clock::time_point last_imu_time;
24 std::chrono::high_resolution_clock::time_point last_points_time;
26 double last_imu_stamp;
27 double last_points_stamp;
29 std::unique_ptr<TimeKeeper> time_keeper;