Recording tf to rosbag and playing back at reduced speed
This worked in Hydro but appears to be broken in Indigo perhaps.
I'm recording a robot experiment using
rosbag record /tf /tf_static /camera/depth_registered/points /robot/joint_states -O trial1.bag
Then I play it back with
rosbag play --clock -r 0.1 trial1.bag
But in MoveIt! I get the tf error:
WARN ros.moveit_ros_planning: Unable to transform object from frame 'camera_depth_optical_frame' to planning frame '/base' (Lookup would require extrapolation into the past. Requested time 1414097890.120901958 but the earliest data is at time 1414097890.730995187, when looking up transform from frame [camera_depth_optical_frame] to frame [base])
But the error goes away if I use a -r 1
instead of -r 0.1
- meaning if I run it in regular time it works fine.
I tried setting
rosparam set use_sim_time true
But that doesn't seem to do anything.
Also, I converted the tf tree to pdf and everything looks correct. So I have some kind of timing error....
Asked by Dave Coleman on 2014-10-23 16:02:54 UTC
Comments
If it works at normal speed. I'd guess moveit is trying to transform before all the transforms are republished.
Asked by tfoote on 2014-10-23 16:11:46 UTC
This is the opposite of the problem I see most of the time - your tf history doesn't go back in time far enough.
Asked by ahendrix on 2014-10-23 18:03:23 UTC
Is this solved Mr. Coleman?
Asked by fvd on 2020-02-29 07:37:33 UTC