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Services (and actions) in graph in addition to topics #110

@dhood

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@dhood

Is there any work done already to view services and actions in rqt_graph? Or is there a quick hack to make it possible?

Since ros2 permits that level of introspection of the graph compared to ros1 I think it is feasible now (unlike when #14 was closed)

Think using no_demangle=True is a key part of it
get_publisher_names_and_types_by_node(node_name, node_namespace, no_demangle=False)

Has any work been done on this already that you know of? I'd be surprised if I'm the first to take an interest in it.

Would be very useful for work I'm doing to validate our system as part of medical device standards. 🙇

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