I have been working a lot with transform matrices these days and the tf nomenclature doesn't make things easier.
For tf_echo, the input frames are defined as such:
tf_echo
When using Python and looking up for a transform it is as follows:
lookupTransform(target_frame, source_frame, time) -> position, quaternion
But what I get are two inverse transforms even though I use the same source_frame and target_frame. Why is that?
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