Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

What is the convention for topic name parameterization?

topics

asked 2011-04-29 10:58:54 -0600

Asomerville
2743 ●74 ●99 ●133 http://www.resquared.com/

updated 2011-09-03 15:29:05 -0600

kwc
12244 ●54 ●90 ●132 http://kwc.org/

Is there a convention or "best practice" for making topic names configurable?

I can think of two obvious ways to do it, but would like to use the "standard".

Name the topics statically and force people to remap as they see fit.
Make the topic names ROS parameters

While the difference may seem trivial, developing consistent conventions eases and speeds development, and I'd like to go with the convention if there is one.

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2011-04-30 01:18:51 -0600

fergs

13902 ●59 ●157 ●196 http://www.robotandchisel.com

Topic names can be remapped when you start a node, there is no need for a parameter to be explicitly declared in your program. For instance, if my node subscribes to "my_topic" , and you have a node that publishes "your_topic", you could still use my code by remapping the name:

 rosrun my_package my_node my_topic:=your_topic

More information on namespaces and remapping can be found on the wiki: http://www.ros.org/wiki/Remapping%20Arguments

You can also remap topics using launch files using roslaunch's "remap" tag (http://www.ros.org/wiki/roslaunch/XML/remap).

edit flag offensive delete link

Comments

@fergs can we do the other way round? i.e. can the publisher change its published topic name? if so can you please show the code like above? thanks

ChickenSoup ( 2012-08-27 21:27:12 -0600 )edit

add a comment

Question Tools

Stats

Asked: 2011-04-29 10:58:54 -0600

Seen: 1,696 times

Last updated: Apr 30 '11

What is the convention for topic name parameterization? edit

1 Answer

Comments

Question Tools

Stats

Related questions

What is the convention for topic name parameterization?