ROS toolbox (ROS2 bag)

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Jesús Ferrándiz Alarcón 2020-11-3

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/635129-ros-toolbox-ros2-bag

评论： Cam Salzberger 2021-8-18

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?

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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 2021-8-18

It's probably better to make a separate question for this issue, to keep things organized.

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Answer 1

Cam Salzberger 2020-11-3

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/635129-ros-toolbox-ros2-bag#answer_532854

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