[ros-users] Loading empty map to move_base

[Tully Foote]

Zhiping,

Could you please ask this question on http://answers.ros.org We're
transitioning troubleshooting questions to that website to decrease the
volume on this mailing list and make past questions more visible.
https://code.ros.org/lurker/message/20110216.014950.2c9cb33e.en.html

Thanks,
Tully

On Thu, Feb 17, 2011 at 9:57 AM, Eric Perko <wisesage5001 at gmail.com> wrote:

> Zhiping,
>
> On Thu, Feb 17, 2011 at 2:41 AM, Zhiping <TANZ0066 at e.ntu.edu.sg> wrote:
>
>>
>> Hi to all,
>>
>> I'm currently trying to load an empty map by directly publishing it in the
>> form of nav_msgs/OccupancyGrid instead of using the map_server.
>
>
> Could you elaborate on why you want to load an empty map instead of simply
> not initializing anything with a static map?
>
>
>> Knowing amcl
>> is combining all the 'tf' together, what should i do to pass the
>> odom-to-map
>> tf to amcl.
>>
>
> AMCL is not "combining all the tf together" in any filtering sense - it is
> actually generating the odom->map transform! Hence, you do not need to feed
> an odom-to-map transform into amcl. In fact, an odom-to-map transform would
> be unnecessary if you don't have a map. In that case, there is no need to
> run amcl at all.
>
> If you want to build a map on the fly, you should look at the gmapping
> package (http://www.ros.org/wiki/gmapping).
>
> - Eric
>
>
>>
>> With thanks,
>> Zhiping
>> --
>> View this message in context:
>> http://ros-users.122217.n3.nabble.com/Loading-empty-map-to-move-base-tp2516192p2516192.html
>> Sent from the ROS-Users mailing list archive at Nabble.com.
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>
>
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-- 
Tully Foote
Systems Engineer
Willow Garage, Inc.
tfoote at willowgarage.com
(650) 475-2827
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