rqt_plot not publishing showing anything

asked 2013-07-25 04:06:04 -0600

Gudjohnson

100 ●11 ●15 ●27

updated 2013-11-14 10:58:13 -0600

tfoote

58457 ●128 ●550 ●526 http://www.ros.org/

rqt_plot not publishing anything even thought there is data being published on the topic "mytopic". When I do rostopic echo /mytopic I get continious output with parameters changing given as follows(just posted a script out of the big output I am getting) :

  id: 3
    vs: 4

  - 
    id: 10
    vs: 1

  - 
    id: 13
    vs: 6

  - 
    id: 18
    vs: 1

  - 
    id: 19
    vs: 1

  - 
    id: 21
    vs: 8

  - 
    id: 27
    vs: 1

  - 
    id: 31
    vs: 1

However when I do rosrun rqt_plot rqt_plot /mytopic nothing is ouputted. Can somebody help me with this.

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Comments

What data types are the members of your topic? Are they numeric?

130s ( 2013-08-07 14:51:02 -0600 )edit

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answered 2013-07-25 04:27:30 -0600

130s

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

updated 2013-07-25 04:28:09 -0600

Try:

$ rqt_plot /%TOPIC_NAME%/%FIELD_NAME%

In your case:

$ rqt_plot /mytopic/id /mytopic/vs

Hope this works.

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unfortunately this does not work. I do not understand why it does not work. For rosrun rqt_graph rqt_graph I get a graph in which I have one note which is publishing and subscribing to my /mytopic. rqt_plot should output the data being published on a topic but it does not show anything althought "rostopic echo /mytopic" shows that data is being published on mytopic.

Gudjohnson ( 2013-07-25 07:10:58 -0600 )edit

I'm not sure either. Try `rosdep install rqt_plot` (this installs missing dependency if any) and tell us the result.

130s ( 2013-08-07 21:08:52 -0600 )edit

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answered 2022-11-29 05:50:51 -0600

Domi
21 ●1 ●2

I know this is an old thread but I just want to post it here in case it would help anyone...

In order for rqt_plot to plot your topic, it should include a timestamp. In other words, add a header to your customized message and write my_msg.header.stamp in it, then rqt_plot should work.