diff --git a/en/flight_modes/offboard.md b/en/flight_modes/offboard.md index 4459018f1eb1..a12295ef404b 100644 --- a/en/flight_modes/offboard.md +++ b/en/flight_modes/offboard.md @@ -30,8 +30,13 @@ The action is defined in the parameters [COM_OBL_ACT](#COM_OBL_ACT) and [COM_OBL ### Copter/VTOL -* [SET_POSITION_TARGET_LOCAL_NED](https://mavlink.io/en/messages/common.html#SET_POSITION_TARGET_LOCAL_NED) - Control vehicle position, velocity, or thrust. - - Acceleration setpoints are combined to create a 'thrust' setpoint. +* [SET_POSITION_TARGET_LOCAL_NED](https://mavlink.io/en/messages/common.html#SET_POSITION_TARGET_LOCAL_NED) + * The following input combinations are supported: + * Position setpoint (only) + * Velocity setpoint (only) + * *Thrust* setpoint (only) + > **Note** Acceleration setpoint values are mapped to create a normalized thrust setpoint (i.e. acceleration setpoints are no "properly" supported). + * Position setpoint **and** velocity setpoint (the velocity setpoint is used as feedforward; it is added to the output of the position controller and the result is used as the input to the velocity controller). - PX4 supports the coordinate frames (`coordinate_frame` field): [MAV_FRAME_LOCAL_NED](https://mavlink.io/en/messages/common.html#MAV_FRAME_LOCAL_NED) and [MAV_FRAME_BODY_NED](https://mavlink.io/en/messages/common.html#MAV_FRAME_BODY_NED). * [SET_ATTITUDE_TARGET](https://mavlink.io/en/messages/common.html#SET_ATTITUDE_TARGET) - Control vehicle attitude/orientation. @@ -39,7 +44,7 @@ The action is defined in the parameters [COM_OBL_ACT](#COM_OBL_ACT) and [COM_OBL * [SET_ATTITUDE_TARGET](https://mavlink.io/en/messages/common.html#SET_ATTITUDE_TARGET) - Control vehicle attitude/body rates. -> **Warning** Position setpoints are **not supported** on Fixed Wing offboard mode (`SET_POSITION_TARGET_LOCAL_NED`). +> **Warning** Position setpoints are **not supported** on Fixed Wing offboard mode (`SET_POSITION_TARGET_LOCAL_NED`).