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Ubuntu 12.04, fuerte and Rviz
I would like to visualize the data generated by the /odom topic by gps_common package and the data from the laser range finder.
So I would like to know how the frome ID can be found out in general?
Thanks, Sai
rostopic echo /odom
EDIT:
In general, the frame_id in the header of any topic (if it has a header) can be found by rostopic echo. For example, laser scans usually publish on /scan topic. So rostopic echo /scan will show you what is in frame_id. (You can use rostopic echo /scan |grep frame_id to show only that line with the id.
Frames are published on the tf topic. To see all frames and the nodes publishing frames, execute:
.jpg "sai"){kind=small}
rosrun tf tf_monitor
My understanding of his question is that he's looking for the frame_id in the header of the topic /odom. The gps_common package http://www.ros.org/wiki/gps_common does not broadcast any tf, so will not show up on tf_monitor
Asked: 2012-08-29 23:58:02 -0500
Seen: 23,403 times
Last updated: Aug 30 '12
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There is no output after rostopic echo /odom...Any other way to find the frame ID?
if there's no output for echo /odom, you will not be able to visualize any data. I suggest you echo the /fix topic instead
When the /odom topic started to publish the data i.e. when it got the right data from GPS, then rostopic echo /odom gave the frame_id