rosrun & node_name

rosrun & node_name

asked 2012-04-16 10:57:45 -0600

SmithGeneP
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With the advice from Lorenz I was able to resolve the errors I had when running rosmake. However I tried to launch rosrun but found that I am not using the correct node_name. Actually, I (incorrectly) assumed that after rosmake run completed one of the outputs would the creation of the node_name. Can anyone tell me how is the node_name created and where do I look for it?

Thanks,

Gene

answered 2012-04-16 12:55:03 -0600

joq
25443 ●181 ●256 ●408

updated 2018-03-05 04:02:46 -0600

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

In ROS there are separate names for packages, executables and nodes. Rosmake creates an executable file for each node. The default node name will be the string it passes to ros::init(), but that name can be overridden:

$ rosrun my_package node_executable __name:=my_node1

The equivalent roslaunch command is:

<node package="my_package" type="node_executable" name="my_node1"/>

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thanks for the info. A minor issue that: it should be

<node package="my_package" type="node_executable" name="my_node1"/>

Anders ( 2018-03-05 03:57:39 -0600 )edit

You're right, I updated the answer.

gvdhoorn ( 2018-03-05 04:03:13 -0600 )edit

This doesn't seem to be supported for all nodes. Specifying __name when running rqt_image_view is ignored, and the node still uses an auto-generated node name like "/rqt_gui_cpp_node_12409".

Cerin ( 2018-07-03 08:56:51 -0600 )edit

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