[ros-users] Fake localization problem

Bhaskara Marthi bhaskara at willowgarage.com
Fri Oct 22 16:09:44 UTC 2010


Hi Dominik, fake_localization is meant for use in a simulator that publishes
base_pose_ground_truth (http://www.ros.org/wiki/fake_localization).  So it
won't work on a robot out of the box.  You would need to start the
fake_localization node with base_pose_ground_truth remapped to a topic of
type nav_msgs/Odometry that is being published on your robot.  Is there a
reason you want to use fake_localization?
- Bhaskara

On Fri, Oct 22, 2010 at 4:44 AM, Dominik Franěk <dominik.franek at gmail.com>wrote:

> Hi everyone!
>
> I have a curious and simple problem with fake_localization. All my
> navigaion stack runs great on my robot, with static map and amcl. But
> when I replace amcl node by fake_localization with identical frame
> settings, it reports
> Waiting on transform from /base_link to /map to become available
> before running costmap, tf error: Frame id /map does not exist!
> which doesn't make any sense as it should work just the same. Map
> server still starts fine.
> Where might be the problem?
>
> Thanks, Dominik
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-- 
Bhaskara Marthi
Research Scientist
Willow Garage Inc.
650-475-2856
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