Custom rosbag record in launch file (several args)

asked 2022-03-23 02:17:02 -0500

Petros ADLATUS
28 ●6 ●15 ●17

updated 2022-03-23 02:18:48 -0500

Hey guys,

i'm trying to use rosbag record to pass multiple arguments in a launch file, but unfortunately the folder is not created and recordings aren't started.

I used the following arguments:

node pkg ="rosbag" type="record" name="record_run" args="record -o ./rosbags record --split --duration=15m -a" />

record -o ./rosbags --split --duration=15m -a

-o : timestamp for bag file

--split --duration=15m : split the bag when duration is reached

-a : record all topics

Does anyone know what i did wrong, i have tried different variations, but it's still not working

Thanks a lot!

answered 2022-03-23 03:44:46 -0500

Petros ADLATUS
28 ●6 ●15 ●17

news

i have solved the bug. To all those who want to use the launch file:

<--How to use -->

<--add a launch file --> <--<include file="$(find package_name)/launchfile.launch"/>-->

<--add a node package --> <--<node pkg="package" type="node_type" name="node_name"/>-->

<--++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-->

<--1. start Yujin LiDAR node-->

node pkg ="yujin_yrl_v2_package" type="yrl_pub" name="lidar_run"

<--start rviz node-->

node pkg ="rviz" type="rviz" name="rviz_run" args="-d /home/pkatsoulakos/catkin_ws/src/launch/settings.rviz"

<--start rosbag node-->

node pkg ="rosbag" type="record" name="record_run" args="record -o /home/pkatsoulakos/catkin_ws/src/launch/rosbags/Besprechungsraum/ --split --duration=15m -a"

</launch>

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Comments

Just a note: this is not a bug, but likely expected behaviour.

Every executable you start using roslaunch has the CWD (ie: current working directory) changed to $HOME/.ros (at least, on Linux, and if you haven't changed the default).

In your original post, you specified this as the directory for rosbag to record to: ./rosbags. That's a relative path, and would resolve to $HOME/.ros/rosbags.

You might want to check whether there are .bags stored in that directory on your system.

Changing the path to an absolute path solves this, as now the CWD does not influence where the files will end up.