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Hi,
With the
ros2 bag record
command I can easily start recording data to a bag file. Is it possible the start recording in with a launch file? I would like to start some nodes from this launch file and start recording, as well.
Thanks for your help.
You should be able to launch the ros2 bag record command as an executable. For example, recording all topics:
import launch
def generate_launch_description():
return launch.LaunchDescription([
launch.actions.ExecuteProcess(
cmd=['ros2', 'bag', 'record', '-a'],
output='screen'
)
])
and the XML equivalent if you are using ROS Eloquent or newer:
<launch>
<executable cmd="ros2 bag record -a" output="screen" />
</launch>
Is anyone else experiencing an issue with this? When I ctrl-c the launch bag always dies.
The launch file:
def generate_launch_description():
return LaunchDescription([
ExecuteProcess(cmd=['ros2', 'bag', 'record', '-a'], output='screen', log_cmd=True),
])
On ctrl-c:
[ERROR] [ros2-2]: process has died [pid 40507, exit code 2, cmd 'ros2 bag record -a'].
And the tables in the sqlite database seem corrupt.
@justinberi I think that better place to ask for it would be a GitHub issue there: https://github.com/ros2/rosbag2 You can prepare your MWE and error description etc. and maybe get answers directly from maintainers
Asked: 2020-01-14 10:15:04 -0500
Seen: 3,386 times
Last updated: Jan 17 '20
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