Attention: Answers.ros.org is deprecated as of August the 11th, 2023. Please visit robotics.stackexchange.com to ask a new question. This site will remain online in read-only mode during the transition and into the foreseeable future. Selected questions and answers have been migrated, and redirects have been put in place to direct users to the corresponding questions on Robotics Stack Exchange. Additional details are available here.

Revision history [back]

I would have expected that once a transform has been published, canTransform() and lookupTransform() should never fail

This is a bad assumption. The TFBuffer object only keeps the /tf messages for a limited amount of time, typically around 10 seconds. But the /tf_static messages do not expire.

ROS Answers is licensed under Creative Commons Attribution 3.0 Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.