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rqt_plot for data in DignosticArray message

asked 2014-09-24 17:59:32 -0600

john.novak gravatar image

I have been trying (unsuccessfully) to plot /diagnostics/status[0]/values[0]/value (a stringified floating point number).

Is such a topic string supported by rostopic or rqt_plot ? If so, how do I access the value of interest ?

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answered 2014-09-24 23:10:11 -0600

ahendrix gravatar image

Sadly, you can't plot strings in rqt_plot, and the diagnostics messages don't support floating-point diagnostic values.

You may want to look at the diagnostic_analysis package for alternate ways to analyze diagnostic data, or consider publishing your numeric data on a dedicated topic.

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Asked: 2014-09-24 17:59:32 -0600

Seen: 118 times

Last updated: Sep 24 '14