content of a node's publications
I am playing around with the navigation stack and turtlebot and trying to debug the errors I get. Especially the topic /tf where many nodes are publishing transformations. How to know from which node is which transformation? Is there something like rostopic echo that allows to echo nodes coming from a preselected node?
When I run rosrun tf tf_monitor all I get is :
Frame: pole_middle_3_link published by unknown_publisher Average Delay: -0.5 Max Delay: 0
for all published transforms.
I remember that there's somewhere the information about the publisher in the message, but don't remember the exact name or position of it. This has been asked a several time here. All answers said that this information should only be used to debug. I don't think
rostopiccan do that.any suggestion about keywords to search about old questions?