ROS2 Galactic nodes not shown in Matlab

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Sebastian Brückner 2022-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/1668689-ros2-galactic-nodes-not-shown-in-matlab

评论： Jiawei Shen 2022-7-25

采纳的回答： Sebastian Brückner

I have multiple Ubuntu PCs running on a LAN. They all run ROS2 Galactic and can exchage topics withot any issues.

A windows PC on the same LAN with Matlab 2022a dooes not find any nodes or topics.

I made sure everything is on the same subnet and all PCs have the same ROS_DOMAIN_ID set. I also walked through the troubleshooting instructions https://de.mathworks.com/matlabcentral/answers/497662-trying-to-connect-to-an-active-node-ros2 with no success.

Is ROS2 Galactic supported and expected to work with Matlab 2022a?

Thanks!

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采纳的回答

Sebastian Brückner 2022-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/1668689-ros2-galactic-nodes-not-shown-in-matlab#answer_914699

I think I can answer my own question: as an experiment, I installed ROS2 Foxy on one of the remote Ubuntu PCs and published a topic from Foxy. Matlab will list that topic and subscribe to it with no issue. Apparently Matlab does not support ROS2 Galactic.

New question: Is there a workaround to get Matlab to talk to Galactic?

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Michael 2022-6-2

编辑：Michael 2022-6-2

@Sebastian Brückner FYI, I've got ROS2 Galactic installed on my target machine (Ubuntu) and it seems to be talking fine to nodes that run on my Mac within the Matlab Environement.

UPDATE: It seems my Galactic install can see the Matlab generated nodes on the network, but can't see the Matlab services. I just tied changing the matlab cross-DDS middleware which didn't help. I also tried changing it on the Galactic install per your suggestion with no luck.

Can you confirm that you are able able to see both the Matlab generated nodes and services?