Cannot access isaac_sim's ros_topic from another computer

Omniverse Isaac Sim
1

Hi everyone,
I ran Simulation on Isaac Sim 2022.1.1 and published several ROS topics (/rgb, /odom, /scan, …) through ROS_Bridge Extension. I can access all these topics on my host computer (the computer was running omniverse isaac sim) and showed them on Rviz. But when i tried to access them from another computer, there was no messages from the topics.
Can i access isaac_sim’s ros topics from another computer? If yes, how do i do to get messages from the topics?

3

Were the topics visible but no messages received? or the topics were not visible either?

4

the topics is visible when commanded like ‘rostopic list’, but when i tried to accessed ‘rostopic hz /topic_name’ there were no messages

1 Like
5

And could you publish a topic manually outside of sim and receive it on the other computer?

6

yes, as i said above, i run simulation on isaac sim and received messenges from topic on My Host Computer but when there were no messenges when i tried to access from another. Note that all the other topics (from outside of Isaac Sim) worked normally from host to clients.

7

Understood, trying to make sure we’re trying to reproduce on our end correctly.

Is roscore/rosmaster running on the sim side or the client side?

8

i ran roscore on host computer, which i ran Isaac Sim