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Position, Velocity and Time

asked 2017-10-17 19:14:10 -0500

Divya Thomas gravatar image

Is there a standard ROS message that can represent an object's x, y position along with its velocity at each position and time passed at the position?

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It would be good if you could provide a little more details. Are you looking for something that can report current state, or something that is used to encode desired state?

gvdhoorn gravatar image gvdhoorn  ( 2017-10-18 02:20:52 -0500 )edit

This is for desired state. I'm trying to output points along a trajectory where each point represents x, y, desired velocity at that point, and the time to get to the point.

Divya Thomas gravatar image Divya Thomas  ( 2017-10-18 11:26:33 -0500 )edit

To encode desired state, a trajectory would seem to be the logical choice. That would be what @tfoote suggested. However, perhaps a nav_msgs/Path would be better suited than the trajectory_msgs he links to.

gvdhoorn gravatar image gvdhoorn  ( 2017-10-18 12:00:19 -0500 )edit

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answered 2017-10-18 01:48:51 -0500

tfoote gravatar image

That sounds a lot like a Trajectory specifically the MultiDOFJointTrajectory http://wiki.ros.org/trajectory_msgs

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answered 2017-10-17 23:53:24 -0500

andymcevoy gravatar image

maybe this answer is what you're looking for?

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Asked: 2017-10-17 19:14:10 -0500

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Last updated: Oct 18 '17