I am able to attain data using the UAV Toolbox functions waypointTrajectory and lookupPose, but I don’t understand the reference frame in which the data is being provided. Take the UAV Toolbox waypointTrajectory function example titled "Create Trajectory using Waypoint and Ground Speed" linked here. The default reference frame for the waypointTrajectory function is said to be "NED", but in either reference frame case ("NED" or "ENU") the position values output are both positive. I assumed that when climbing in altitude the position value output for the "NED" frame would be negative. My assumption, at this point, is the "NED" frame is set at latitude, longitude, and height of 0 and the information being output is given with respect to the body frame. Does this sound correct or does anyone have a better explanation to the frame of reference in which the data is being provided?I am able to attain data using the UAV Toolbox functions waypointTrajectory and lookupPose, but I don’t understand the reference frame in which the data is being provided. Take the UAV Toolbox waypointTrajectory function example titled "Create Trajectory using Waypoint and Ground Speed" linked here. The default reference frame for the waypointTrajectory function is said to be "NED", but in either reference frame case ("NED" or "ENU") the position values output are both positive. I assumed that when climbing in altitude the position value output for the "NED" frame would be negative. My assumption, at this point, is the "NED" frame is set at latitude, longitude, and height of 0 and the information being output is given with respect to the body frame. Does this sound correct or does anyone have a better explanation to the frame of reference in which the data is being provided? I am able to attain data using the UAV Toolbox functions waypointTrajectory and lookupPose, but I don’t understand the reference frame in which the data is being provided. Take the UAV Toolbox waypointTrajectory function example titled "Create Trajectory using Waypoint and Ground Speed" linked here. The default reference frame for the waypointTrajectory function is said to be "NED", but in either reference frame case ("NED" or "ENU") the position values output are both positive. I assumed that when climbing in altitude the position value output for the "NED" frame would be negative. My assumption, at this point, is the "NED" frame is set at latitude, longitude, and height of 0 and the information being output is given with respect to the body frame. Does this sound correct or does anyone have a better explanation to the frame of reference in which the data is being provided? uavtoolbox, lookuppose, waypointtrajectory, referenceframe MATLAB Answers — New Questions

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