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rqt_plot only showing 0

asked 2016-08-25 00:57:28 -0600

nickhuan gravatar image

when I use rostopic echo to display the messages, the number fluctuates. While I rqt_plot to plot the data, those data are always zeros. The message type is correct and rqt_plot is indeed displaying the plot. I can see lines of different colours and correct coloured legends. Just the values are incorrect. Anyone got clue how this is happening?

I don't think the rqt_plot node is getting correct values from the topic.

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Could you please add the type of the message you are trying to visualize? Does it have a header? If not, rqt_plot is not able to infer the time (the x-axis).

Mani gravatar imageMani ( 2016-10-14 13:54:59 -0600 )edit

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answered 2016-10-14 13:16:51 -0600

Reijin_ThunderKeg gravatar image

updated 2016-10-14 13:17:10 -0600

Your Y-axis limits might be too large to reflect the small changes in your data. Try zooming in on the graph.

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Asked: 2016-08-25 00:57:28 -0600

Seen: 323 times

Last updated: Oct 14 '16