Identity of message publisher
How to find out who published a message (node name), especially for the topic tf, where many nodes are publishing different transforms.
ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
How to find out who published a message (node name), especially for the topic tf, where many nodes are publishing different transforms.
By using the MessageEvent callback signature you can use the getPublisher()
function to retrieve the publisher name (in roscpp). The same appears to be possible in rospy by using Connection Information.
If you play back bags, rosbag effectively is the publisher. I think the connection header approach will therefore not work with rosbag. I'm not sure there is a way to recover the publisher id when playing back bagfiles (I guess not).
Asked: 2015-08-19 06:44:51 -0500
Seen: 704 times
Last updated: Aug 19 '15
Node to NOde synchronous communication using Publisher Subscriber Architecture
Is there a way to subscribe to tf data?
Creating pub/sub to ROS2 node spinning in a thread
Implementation of two subscribers
ROS node which broadcasts periodically frames getting from python?
Multiple Subscribers in one Cpp file.
Structure of ROS python program
Order of rospy.Publisher and rospy.Subscriber with rospy.init_node()