tf_echo error while using fake localization

edit

I think that I have got the problem. When we are using /odom data tf works well i.e. transformation from base_link to map is simple

map -> odom -> base_link

But when we are using fake localization It gives direct transform from base_link to map. So at one time we have two transforms

map -> odom -> base_link

and

map -> base_link

due to these two transforms, I was getting error in tf from base_link -> map. That's why I was getting two different values.

Thanks, I have not changed anything. I just add fake_localization node. Its working with one robot as there is only one transform /odom -> /base_link. But When there are multiple robots and you have a map frame then It gives error.

Yes. One thing I am doing is that, I have a node that is continuously giving a transform between /odom and /map. Im doing this.

tf::TransformBroadcaster broadcaster;
while(n.ok())
{
    broadcaster.sendTransform(tf::StampedTransform(tf::Transform(tf::Quaternion(0,0,0,1), tf::Vector3(x, y, 0.0)), ros::Time::now(), "map", robot_name+"/odom"));

    r.sleep();
}

Is it ok? Or I should write tf from /map to /odom in another way, so that fake_localization do not effect.