xqms, Yes, n-vector has been a lifesaver for me. I can cobble together very useful code from the recipes given. I was thinking I'd use the interpolation example (#6) so that I could easily handle an offset in case it's not quite centered. --- [Visit Topic](https://discourse.ros.org/t/tractobots-my-attempts-at-field-robots/1486/18) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: