Node doesn't start due to invalid time? about dynamic_robot_localization HOT 1 OPEN

Hello,

That happens when drl is waiting for valid time or waiting for a valid map / reference point cloud.
The reason for that part of the code was to allow the loading of the map / occupancy grid (in the message handler) while a rosbag is paused (and that way, allowing drl to be ready to process the sensor data when you start playing the rosbag).

If you did not set the parameter use_sim_time to true and do not have a rosbag paused, then drl is waiting for a valid map in the configured topics.
http://wiki.ros.org/Clock

You can provide the map in a .ply file:

• https://github.com/carlosmccosta/dynamic_robot_localization/blob/noetic-devel/launch/dynamic_robot_localization_system.launch#L32

Or from an OccupancyGrid / PointCloud2 ros message:

• https://github.com/carlosmccosta/dynamic_robot_localization/blob/noetic-devel/launch/dynamic_robot_localization_system.launch#L45
• https://github.com/carlosmccosta/dynamic_robot_localization/blob/noetic-devel/launch/dynamic_robot_localization_system.launch#L47

For publishing a OccupancyGrid you can use map_server:
http://wiki.ros.org/map_server

For publishing PointCloud2 you can use point_cloud_io:
https://github.com/carlosmccosta/point_cloud_io#read

For avoiding confusion, I made the message clearer with the last commit:
72b1ba3

Have a nice day,

from dynamic_robot_localization.