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

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

chezzydc10 gravatar image

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

130s gravatar image

How can i graph a string topic in rqt_plot?

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Closed for the following reason question is not relevant or outdated by chezzydc10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

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

ahendrix gravatar image

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?

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

chezzydc10 gravatar image 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 gravatar image ahendrix  ( 2016-07-25 13:47:51 -0500 )edit

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

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Last updated: Jul 25 '16