ROS Answers: Open Source Q&A Forum - RSS feedhttps://answers.ros.org/questions/Open source question and answer forum written in Python and DjangoenROS Answers is licensed under Creative Commons Attribution 3.0Tue, 17 Mar 2015 15:48:45 -0500Inverse of geometry_msgs/posehttps://answers.ros.org/question/205223/inverse-of-geometry_msgspose/What's the best way to find the inverse of a geometry_msgs/Pose message?
Or in general to perform any other matrix manipulations. Does ROS provide a library or functions to do so? And if not, which is the default method used by the ROS community? Tue, 17 Mar 2015 13:48:13 -0500https://answers.ros.org/question/205223/inverse-of-geometry_msgspose/Answer by gvdhoorn for <p>What's the best way to find the inverse of a geometry_msgs/Pose message? </p>
<p>Or in general to perform any other matrix manipulations. Does ROS provide a library or functions to do so? And if not, which is the default method used by the ROS community? </p>
https://answers.ros.org/question/205223/inverse-of-geometry_msgspose/?answer=205232#post-id-205232If with "inverse of pose" you mean something that deals with transforms and their inverses, then you're probably looking for the [tf](http://wiki.ros.org/tf) system in ROS.
If you're just starting with this, [tf2](http://wiki.ros.org/tf2) might actually be better, as it is the successor to `tf`.
See the various tutorials for more info on how to use both.
Tue, 17 Mar 2015 15:19:49 -0500https://answers.ros.org/question/205223/inverse-of-geometry_msgspose/?answer=205232#post-id-205232Comment by 2ROS0 for <p>If with "inverse of pose" you mean something that deals with transforms and their inverses, then you're probably looking for the <a href="http://wiki.ros.org/tf">tf</a> system in ROS.</p>
<p>If you're just starting with this, <a href="http://wiki.ros.org/tf2">tf2</a> might actually be better, as it is the successor to <code>tf</code>.</p>
<p>See the various tutorials for more info on how to use both.</p>
https://answers.ros.org/question/205223/inverse-of-geometry_msgspose/?comment=205234#post-id-205234The "pose" in my case represents a child coordinate frame (frame B) in parent coordinates (frame A). I want to find out the inverse of that (A in coordinates of B).Tue, 17 Mar 2015 15:48:45 -0500https://answers.ros.org/question/205223/inverse-of-geometry_msgspose/?comment=205234#post-id-205234