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"frame_id" assignment

asked 2012-02-21 22:37:05 -0600

alfa_80 gravatar image

updated 2012-02-21 22:37:27 -0600

I would like to know the semantic behind the following frame_id assignment:

cloud.header.frame_id = "/map";

Which of the following (or both are) is correct:

  1. We want to express our cloud values in the world(/map in this case) frame.
  2. We want to express our cloud values with respect to the origin of the world(/map in this case) frame.

I just couldn't see the difference between those two, and at the moment, I presumed that they both carry the same semantic and effect.

Thanks in advance.

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answered 2012-02-21 23:30:50 -0600

dornhege gravatar image

I think 1. and 2. are exactly the same.

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Thanks a lot for the confirmation.

alfa_80 gravatar image alfa_80  ( 2012-02-22 00:32:50 -0600 )edit

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Asked: 2012-02-21 22:37:05 -0600

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Last updated: Feb 21 '12