ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question

Weird rqt_graph when running turtlesim

asked 2015-07-29 13:02:00 -0500

luketheduke gravatar image

I am going through the ROS tutorials and on the "Understanding Topics" tutorial in section 1.2.1 when I launch rqt_graph I get this image: image description

It should be this:

image description(according to the tutorial)

my_turtle was from the previous tutorial and I tried killing it with rosnode kill /my_turtle but when I restarted rqt_graph it didn't change. Any ideas as to why this is happening? Also why are there three turtlesim nodes besides the my_turtle node, instead of two?

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2015-07-29 13:09:56 -0500

Vinh K gravatar image

but your rosnode kill /my_turtle does not match your _my_turtle with underscore in the front.

edit flag offensive delete link more


when I try to kill node _my_turtle I get this message: ERROR: Unknown node(s): * /_my_turtle Also when I run rosnode list I get the following:

luketheduke gravatar image luketheduke  ( 2015-07-29 13:19:26 -0500 )edit

I also just noticed that my mode was set to Nodes/Topic (active). If I switch to Nodes only it looks better but not the same

luketheduke gravatar image luketheduke  ( 2015-07-29 13:22:05 -0500 )edit

Yeah Luke I am not sure. But your graph does not have to look exactly like the tutorial. the circle inside the square of each node is fine.

Vinh K gravatar image Vinh K  ( 2015-07-29 13:43:33 -0500 )edit

My suggestion is to run it again to see if you have any more issues.

Vinh K gravatar image Vinh K  ( 2015-07-29 13:45:48 -0500 )edit

It disappeared now. Thanks for the help!

luketheduke gravatar image luketheduke  ( 2015-07-29 13:53:23 -0500 )edit

no problem, you helped yourself lol

Vinh K gravatar image Vinh K  ( 2015-07-29 14:45:21 -0500 )edit

Question Tools

1 follower


Asked: 2015-07-29 13:02:00 -0500

Seen: 579 times

Last updated: Jul 29 '15