Re: [ros-users] Correct way to start rosbag play in launch f…

Thanks Jeremy. Aside from the option flags though, do you have any
suggestions on how to workaround the fatal error?

Pat

On Wed, Jun 9, 2010 at 12:13 AM, Jeremy Leibs <leibs@willowgarage.com> wrote:
> Yes, this is an oversight in the rosbag package.  The play node should
> use the new flags, not the old flags.
>
> I consider this to be a bug and we should have a fix in place for the
> next patch release of ROS we push out.
>
> On Tue, Jun 8, 2010 at 11:59 PM, Patrick Bouffard
> <bouffard@eecs.berkeley.edu> wrote:
>> In boxturtle I was able to create launch files that were used to
>> replay sensor data through algorithms. I would do something like this:
>>
>> <node pkg="rosbag" type="rosbag" name="rosbag" args="play -s 10
>> --clock /path/to/bagfile.bag" />
>>
>> However with cturtle this no longer seems to work. "rosbag" does not
>> appear to be a recognized node type of the rosbag package. Instead it
>> recognizes type="play", however it seems that the commandline
>> arguments are back to the old, "rosplay" style (i.e. for the above the
>> options would be '-t 10 -b'). If I do this:
>>
>> <node pkg="rosbag" type="play" name="rosbag" args="play -t 10 -b
>> /path/to/bagfile.bag" />
>>
>> .. it no longer complains about the options but I still get:
>>
>> [ INFO] [0.000000000]: Opening /path/to/bagfile.bag
>> [ INFO] [0.000000000]: Opening __name:=rosbag
>> [FATAL] [0.000000000]: Error opening file: __name:=rosbag
>>
>> What is the 'correct' way to start rosbag play with options from
>> within a launch file, specifically in cturtle and also in boxturtle,
>> if what I had started with above is not advised?
>>
>> Thanks,
>> Pat
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