ROS toolbox (ROS2 bag)

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Jesús Ferrándiz Alarcón
评论： Remo Pillat 2024-6-18
I would like to read bag files from ROS2 (.db3) format. Is it possible to do it with the current ROS toolbox as the information is serialized into cdr format?
  2 个评论
Daniel Montgomery
Daniel Montgomery 2021-8-17
A similar problem, but now using ros2bag from matlab R2021a, I am trying to open a ros2 bag as follows:
bag = ros2bag('pathToBag') I am getting the following error message that I dont know how to interpret
>> bag = ros2bag('D:\data\rosbag2\rosbag2_2021_07_26-14_41_47')
Loading C:\Program Files\MATLAB\R2021a\bin\win64\builtins\ros\mlros2_builtins\mwros2bag_cpp_builtinimpl.dllfailed with
error: The specified procedure could not be found.
: state not recoverable: state not recoverable
***************************************************************
In the specified folder, there are 4 files
metadata.yaml 2 KB
rosbag2_2021_07_26-14_41_47.db3 1.547 MB
rosbag2_2021_07_26-14_41_47.db3-shm 32 KB
rosbag2_2021_07_26-14_41_47.db3-wal 0 KB
I'm not sure why this is not working as I just upgraded to R2021a and installed ros toolbox
Are you able to assist me in debugging this issue?
Thanks.
Cam Salzberger
Cam Salzberger 2021-8-18
It's probably better to make a separate question for this issue, to keep things organized.

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采纳的回答

Cam Salzberger
Cam Salzberger 2020-11-3
Hello Jesús,
It is not possible to read data out of ROS 2 bag databases using R2020b. There is a lot of focus on ROS 2 now though, so keep an eye on future releases for this feature.
-Cam
  2 个评论
Cam Salzberger
Cam Salzberger 2021-8-18
Update: As of R2021a, you can use ros2bag to read ROS 2 bag databases!
Remo Pillat
Remo Pillat 2024-6-18
Thanks, Cam. The ros2bag function has been renamed to ros2bagreader.
As of R2022b, writing ROS2 bag files is also supported through the ros2bagwriter function.

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