Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

how to save the published data of a topic for using in matlab

rviz

asked 2016-12-06 20:18:57 -0600

A.M Dynamics

89 ●37 ●41 ●44

Dear All,

I am using rviz for monitoring the path planning of my mobile robot. It is easily possible to subscribe to a topic and visualize the results data. I wonder how I can save the data of planned path by the planner. I can save topics in a bag file but the problem is that I cannot extract and use them in other software. More clearly, I need to plot this path in Matlab software. Does anybody have any idea how to do it? How do I extract this information from a bag file or Is there any other way to save this data in another format which is usable in Matlab?

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2016-12-07 00:08:37 -0600

rbbg
1823 ●6 ●18 ●26

The easiest method is probably to convert the data in the bag file to a csv file, have a look at this topic for some suggestions how to do that:

how to extract data from a bag

Matlab is capable of loading the csv files and for a description of how one person did that you can even have a look over here: exporting ros bag files to matlab

Good luck

edit flag offensive delete link

Comments

No need to convert to csv if you have the Robotic System Toolbox. See Open and parse rosbag log file.

gvdhoorn ( 2016-12-07 03:30:45 -0600 )edit

add a comment

Question Tools

1 follower

Stats

Asked: 2016-12-06 20:18:57 -0600

Seen: 433 times

Last updated: Dec 07 '16

how to save the published data of a topic for using in matlab edit

1 Answer

Comments

Question Tools

Stats

Related questions

how to save the published data of a topic for using in matlab