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Use crystal rqt_graph 1.0 in kinetic possible?

asked 2019-03-14 06:44:51 -0500

martinakos gravatar image

I'm relatively new to ROS and I'm trying to understand a quite complex system. I find very hard to understand how things fit together with rqt_graph. I've read that crystal rqt_graph 1.0 has some improved visualization and I'd like to try it and see if it makes easier to understand the system. However, I'm stuck with kinetic. I wonder if there is any way to run rqt_graph 1.0 in kinetic.

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answered 2019-03-14 11:12:58 -0500

alsora gravatar image

updated 2019-03-14 11:17:46 -0500

You can't use the ROS2 version of rqt_graph to visualize a ROS1 system.

In order to make ROS1 and ROS2 communicate you need the ROS bridge, but this invalidates the rqt_graph.

If you try you would just see all the ROS1 topics as if they were coming out of a single node (the bridge).

I'm not aware of any specific improvements in rqt_graph for ROS2 and personally I have always been able to visualize my ROS systems using rqt_graph.

Here you can see the difference between the ROS1 and ROS2 version of rqt_graph. The only relevant change is the addition of src/rqt_graph/rosgraph2_impl.py file, which actually has been ported ffrom the ROS1 ros_comm package.

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These are the improvements in rqt_graph 1.0 https://github.com/ros-visualization/...

martinakos gravatar image martinakos  ( 2019-03-14 11:24:22 -0500 )edit

@martinakos: the PR you refer to was merged into master which is a branch used to release packages from into "regular ROS 1" packages. The features you are looking for are available in ROS 1 rqt_graph since May 2018. See here for the changelog.

gvdhoorn gravatar image gvdhoorn  ( 2019-03-17 15:28:45 -0500 )edit

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Asked: 2019-03-14 06:44:51 -0500

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Last updated: Mar 14 '19