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What exactly does "frame_locked" mean? [closed]

asked 2018-05-03 00:05:57 -0600

harderthan gravatar image

Hello, guys. I am trying to study rivz using this tutorials.

I saw a message, "frame_locked", parameter of the Marker header. I found the description for understanding on this link. But I can not understand what does it mean.

frame_locked [1.1+]
Tells rviz to retransform the marker into the current location of the specified frame every update cycle.

What exactly does "frame_locked" mean? When can I use it? How it work on?

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Closed for the following reason the question is answered, right answer was accepted by harderthan
close date 2018-05-14 21:48:04.534870

1 Answer

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answered 2018-05-03 06:41:52 -0600

Without the frame_locked parameter the marker object will be placed into the RVIZ view with the transform at the time it was produced. The location of the marker in RVIZ is then set and will not change in the future even If the TF tree changes.

However if you set the frame locked parameter, future changes to the TF tree will effect the location of the marker. This means changes to the TF tree will be reflected in the markers position in real time.

Hope this helps.

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Thank you. It helped me.

harderthan gravatar image harderthan  ( 2018-05-14 21:44:02 -0600 )edit

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Asked: 2018-05-03 00:05:57 -0600

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Last updated: May 03 '18