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Published 20 hours ago • verified publisher icon Hypha-ROS

Transform error: Could not find a connection between 'map' and 'arm1'

Open boonflies opened this issue 6 years ago • 5 comments

I am trying to run RViz, then I receive the error, Transform error: Could not find a connection between 'map' and 'arm1' because they are not part of the same tree.Tf has two or more unconnected trees.

I checked for, rosrun tf view_frames and my tf looks like this, frames.pdf

And I don't visualize the point cloud properly in RViz but just as a group of white clouds. pointclouds

what could be reason for the error?

boonflies avatar Dec 09 '18 10:12 boonflies

can you please share a tf model of the entire setup?

boonflies avatar Feb 16 '19 04:02 boonflies

I have the same problem. Did you find out about it @boonflies ?

haakonelf avatar Apr 22 '19 20:04 haakonelf

Hello, I think you guys face the same issue.

https://github.com/Hypha-ROS/hypharos_ardrone_navigation/issues/3#issuecomment-487378389

kungfrank avatar Apr 28 '19 13:04 kungfrank

I could create maps with TUM_Simualator but when I use the real AR.Drone 2.0 i am facing this issue.

boonflies avatar Apr 29 '19 07:04 boonflies

@kungfrank So you're assuming the tf tree should be connected as long as one moves around enough ang get a good scale? It doesnt seem to help me

haakonelf avatar May 06 '19 16:05 haakonelf