Problem tf from base_link to laser in python

edit

Hi,

I have a p3dx with ROS indigo runing on ubuntu 14.14 and a LMS100 Laser.

I want to transform data from /base_link topic to /laser using a python script

The program works without error, but the TF is not created

> import roslib import rospy import tf
> 
> rospy.init_node('pioneer_tf_broadcast')
> 
> rate = rospy.Rate(20.0)
> 
> laserBroadcaster =
> tf.TransformBroadcaster()
> 
> while not rospy.shutdown():
>     laserBroadcaster.sendTransform(   (0, 0,
> 0), 
>                                       tf.transformations.quaternion_from_euler(0.13,
> 0.0, 0.39), 
>                                       rospy.Time.now(),
>                                       "/laser",
>                                       "/base_link" 
>                                       )
>     rate.sleep()

Here what I get when I used roswtf :

> Beginning tests of your ROS graph.
> These may take awhile... analyzing
> graph... ... done analyzing graph
> running graph rules... ... done
> running graph rules running tf checks,
> this will take a second... ... tf
> checks complete
> 
> Online checks summary:
> 
> Found 1 warning(s). Warnings are
> things that may be just fine, but are
> sometimes at fault
> 
> WARNING The following node
> subscriptions are unconnected:  *
> /rqt_gui_py_node_4057:    * /tf_static
> * /RosAria:    * /RosAria/cmd_vel

also here the frames obtained by rqt :