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.

How can i graph a string topic in rqt_plot? [closed]

rqt_plot

asked 2016-07-25 11:51:04 -0500

chezzydc10
3 ●3 ●4 ●6

updated 2016-07-25 12:49:30 -0500

130s

10937 ●203 ●339 ●330 http://www.linkedin.co...

How can i graph a string topic in rqt_plot?

edit retag flag offensive reopen merge delete

Closed for the following reason question is not relevant or outdated by chezzydc10
close date 2016-07-26 06:38:59.736365

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2016-07-25 12:18:34 -0500

ahendrix

47576 ●179 ●367 ●662 http://namniart.com/

rqt_plot only plots numeric values; you can't plot a string.

I'm not sure how that would work anyway. Why are you trying to plot a string and what sort of results do you expect to get?

edit flag offensive delete link

Comments

my string data outputs numeric value, so is there anyway to convert the string to float or int in the rosbag

chezzydc10 ( 2016-07-25 12:29:13 -0500 )edit

There's no way to have rqt_plot parse string data into a number. If you're sending numeric data, you should use one of the numeric message types. If you have existing data you can write a node that subscribes to the string version and republishes it as a real numeric type.

ahendrix ( 2016-07-25 13:47:51 -0500 )edit

add a comment

Question Tools

1 follower

Stats

Asked: 2016-07-25 11:51:04 -0500

Seen: 280 times

Last updated: Jul 25 '16

How can i graph a string topic in rqt_plot? [closed] edit

Closed for the following reason question is not relevant or outdated by chezzydc10 close date 2016-07-26 06:38:59.736365