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tf_static and nodelet_manager unconnected for my Kinects

asked 2014-01-07 08:01:17 -0500

Athoesen gravatar image

updated 2014-01-07 08:46:21 -0500

I recently learned about the roswtf tool and have been trying to use it to determine where some things are going wrong. When I use roswtf after launching my Kinects in separate terminals like so:

roslaunch openni_launch openni.launch camera:=kinect_1 device_id:=1@0 
roslaunch openni_launch openni.launch camera:=kinect_2 device_id:=2@0 
roslaunch openni_launch openni.launch camera:=kinect_3 device_id:=3@0

I receive this error:

WARNING The following node subscriptions are unconnected:
 * /kinect_2/kinect_2_nodelet_manager:
   * /tf_static
 * /kinect_1/kinect_1_nodelet_manager:
   * /tf_static
 * /kinect_3/kinect_3_nodelet_manager:
   * /tf_static

Is this anything to be concerned about? I can access all of my camera streams still- rbg, disparity, and depth. What exactly does this error mean? I've tried googling and looking on here and haven't seen this error. I'm using model #1473 Kinects and Hydro.

And to add to my confusion, this is the rqt_graph: (I can't insert the picture it's too big)

It looks like they're connected to me.

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me too, i have problem with tf_static and When I use roswtf, i find this warnings: WARNING The following node subscriptions are unconnected: * /camera/camera_nodelet_manager: * /tf_static * /octomap_server: * /tf_static /rgbdslam: * /tf_static

sophye_turtlebot gravatar image sophye_turtlebot  ( 2015-04-02 05:44:14 -0500 )edit

did you find any solution?

sophye_turtlebot gravatar image sophye_turtlebot  ( 2015-04-02 05:45:19 -0500 )edit

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answered 2016-06-10 02:16:05 -0500

cellard0or gravatar image

This is old, but I just had to find that out too.

Most probably, you are using a TransformListener. The reason tf_static is reported as unconnected is that it automatically subscribes to both tf and tf_static (see source). Now if you only use tf in your system (which is perfectly legal afaik), tf_static will not be connected.

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+1. Btw, I found this warning confusing, so filed a ticket.

130s gravatar image 130s  ( 2018-05-31 19:07:58 -0500 )edit

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Asked: 2014-01-07 08:01:17 -0500

Seen: 371 times

Last updated: Jun 10 '16