February 2020
Intermediate to advanced
432 pages
10h 50m
English
Content preview from Hands-On ROS for Robotics Programming
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Distance sensor
You can perform the playback wherever you want, using the robot or the laptop. As with rosbag, you will need prior access to a roscore process, then you can issue rqt_bag:
T1 $ roscoreT2 $ rqt_bag
A new window pops up. Select the bag file to play, that is, 2019-08-15-20-36-36_distanceSensor.bag, right-click on the windows, and then mark the /distance_sensor/distance topic to be published. Run the same set of commands as when you used rosbag:
T3 $ rostopic echo /distance_sensor/distanceT4 $ rqt_graphT5 $ rqt_plot
In the following screenshot, you can check that the result is the same:
Now we will play the image stream from the ...
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