Ask Your Question

How to visualize Quaternions

asked 2019-06-14 00:03:47 -0500

dogh gravatar image

Hello everyone,

How do you visualize a time-series of Quaternion values?

Thank you a lot in advance

edit retag flag offensive close merge delete


Really just a Quaternion in isolation, or with an attached Position? If the latter, you could use the Pose visualisation / markers or even broadcast as TF and then use the TF display.

Related: #q49045.

gvdhoorn gravatar image gvdhoorn  ( 2019-06-14 02:00:34 -0500 )edit

Only the Quaternion in isolation. Are there any way to do this in RViz or better rqt? Thank you in advance

dogh gravatar image dogh  ( 2019-06-14 11:35:26 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted

answered 2019-06-20 01:51:04 -0500

VitaliyProoks gravatar image

Quaternions represent rotations and cannot be observed directly. But it's possible to see how a quaternion affects, for example, a coordinate frame. So, to visualize a quaternion, you could publish tf messages with the quaternion values you have, and use TF display in RViz to see the result. A quaternion "in isolation" can be treated as a "quaternion with attached position" but with the position set to the origin or to any other fixed point in space.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools



Asked: 2019-06-14 00:03:47 -0500

Seen: 977 times

Last updated: Jun 20 '19