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Hypha-ROS / hypharos_ardrone_navigation

ARDrone autonomous indoor navigation by integrating lsd-slam with imu through least square method
http://www.ros.org/news/2014/12/ardrone-autonomous-indoor-navigation-by-3d-slam.html
Apache License 2.0
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Transform error: Could not find a connection between 'map' and 'arm1' #10

Open boonflies opened 5 years ago

boonflies commented 5 years ago

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 commented 5 years ago

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

haakonelf commented 5 years ago

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

kungfrank commented 5 years ago

Hello, I think you guys face the same issue.

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

boonflies commented 5 years ago

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

haakonelf commented 5 years ago

@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