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How to get the graph resource name for a node?

asked 2013-05-15 06:14:43 -0500

Noury gravatar image

updated 2013-05-20 03:23:40 -0500

Hi, After launching a node, I can get its graph resource name using the rosnode info /node_name command line. Is there a way to get this information Before launching the node?

As an example, suppose that I want info about turtlesim_node. Currently, I have first to run it rosrun turtlesim turtlesim_node

Then I have to find out some how what is the name of the node I'm interested in, for example by using: rosnode list This will show me all running nodes. Knowing the previous list of running nodes, I can deduce that the new node is named /turtlesim. This way of doing it already annoys me. Is there a simpler way?

And once I have found the node name, I have still to use the rosnode command to have topics published and subscribed by my node rosnode info /turtlesim Again, this is heavy.

I wonder if I can have the names directly from the turtlesim package without launching turtlesim_node?

Thanks

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Can you clarify what information you want? It seems that you already have the node name.

tfoote gravatar image tfoote  ( 2013-05-15 08:07:48 -0500 )edit

I updated the question and provided an example. I can sum up the question as: Is there a way to find out the default node name and topic names before launching the node?

Noury gravatar image Noury  ( 2013-05-23 05:34:23 -0500 )edit

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answered 2013-05-23 08:16:03 -0500

tfoote gravatar image

There is not a way to statically determine what the name of a node is programmed to be. However, you can set the node name on the command line using the command line remapping arguments.

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Asked: 2013-05-15 06:14:43 -0500

Seen: 432 times

Last updated: May 23 '13