[ros-users] Nodelet version of rosbag?

Radu Bogdan Rusu rusu at willowgarage.com
Sun Jan 30 20:08:53 UTC 2011


On 01/30/2011 12:01 PM, Patrick Bouffard wrote:
> Right--I guess the ultimate in speed would be to have the data written
> directly by the same code that is producing it. But I think for
> greater flexibility, a rosbag record nodelet would be preferable, and
> I wonder if it would even be any slower anyhow.

If all you want is point cloud data, try the binary PCD files. We're using mmap/munmap there, so they should be blazing 
fast.


Cheers,
Radu.
--
http://pointclouds.org

>
> Pat
>
> On Sun, Jan 30, 2011 at 11:47 AM, Radu Bogdan Rusu
> <rusu at willowgarage.com>  wrote:
>> Patrick,
>>
>> We could try creating a BAGWriter class similar to pcl_ros::BAGReader if you
>> think that's useful. Basically you want to dump data to disk faster, without
>> going through serialization/deserialization, right?
>>
>> Cheers,
>> Radu.
>> --
>> http://pointclouds.org
>>
>> On 01/30/2011 11:31 AM, Patrick Bouffard wrote:
>>>
>>> Are there any plans to implement rosbag (in particular, rosbag record)
>>> as a nodelet? I can see this being useful when you want to record
>>> large amounts of camera or point cloud data.
>>>
>>> Cheers,
>>> Pat
>>> _______________________________________________
>>> ros-users mailing list
>>> ros-users at code.ros.org
>>> https://code.ros.org/mailman/listinfo/ros-users
>>



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