Timeline best practise 1

If you use a timeline mission it is important that the aircraft keeps the position even under windy conditions.
The advanced virtual stick mode is made for these conditions. At the end of the mission you must stop virtual stick mode.
You can always check if virtual stick or advanced virtual stick is still on.

You can find below all swift functions to use virtual stick.

//MARK: Start Virtual Stick

    func startVirtualStick(enabled: Bool = true) {

        guard let virtualStickKey = DJIFlightControllerKey(param: DJIFlightControllerParamVirtualStickControlModeEnabled) else {

            return;

        }

        DJISDKManager.keyManager()?.setValue(NSNumber(value: enabled), for: virtualStickKey, withCompletion: { (error: Error?) in

            if error != nil {

                print("Error start virtual stick")

            }

            print("Start virtual stick \(enabled)")

        })

    }

//MARK: Start Advanced Virtual Stick

    func startAdvancedVirtualStick(enabled: Bool = true) {

        guard let virtualStickKey = DJIFlightControllerKey(param: DJIFlightControllerParamVirtualStickAdvancedControlModeEnabled) else {

            return;

        }

        DJISDKManager.keyManager()?.setValue(NSNumber(value: enabled), for: virtualStickKey, withCompletion: { (error: Error?) in

            if error != nil {

                print("Error start advanced virtual stick")

            }

            print("Start advanced virtual stick \(enabled)")

        })

    }

    //MARK: Stop Virtual Stick

    func stopVirtualStick() {

        guard let virtualStickKey = DJIFlightControllerKey(param: DJIFlightControllerParamVirtualStickControlModeEnabled) else {

            return;

        }

        DJISDKManager.keyManager()?.setValue(NSNumber(value: false), for: virtualStickKey, withCompletion: { (error: Error?) in

            if error != nil {

                print("Error stop virtual stick")

            }

            print("Stop virtual stick")

        })

    }

    //MARK: Stop Advanced Virtual Stick

    func stopAdvancedVirtualStick() {

        guard let virtualStickKey = DJIFlightControllerKey(param: DJIFlightControllerParamVirtualStickAdvancedControlModeEnabled) else {

            return;

        }

        DJISDKManager.keyManager()?.setValue(NSNumber(value: false), for: virtualStickKey, withCompletion: { (error: Error?) in

            if error != nil {

                print("Error stop advanced virtual stick")

            }

            print("Stop advanced virtual stick")

        })

    }

    //MARK: Is Virtual Stick

    func isVirtualStick() -> Bool {

        guard let virtualStickKey = DJIFlightControllerKey(param: DJIFlightControllerParamVirtualStickControlModeEnabled) else {

            return false

        }

        guard let vs = DJISDKManager.keyManager()?.getValueFor(virtualStickKey) else {

            return false

        }

        let vsValue = vs.boolValue

        print("Virtual Stick on: \(vsValue)")

        return vsValue

    }

    //MARK: Is Advanced Virtual Stick

    func isVirtualStickAdvanced() -> Bool {

        guard let virtualStickKey = DJIFlightControllerKey(param: DJIFlightControllerParamVirtualStickAdvancedControlModeEnabled) else {

            return false

        }

        guard let vs = DJISDKManager.keyManager()?.getValueFor(virtualStickKey) else {

            return false

        }

        let vsValue = vs.boolValue

        print("Advanced Virtual Stick on: \(vsValue)")

        return vsValue

    }

    //MARK: Prepare Virtual Stick

    func prepareVirtualStick() {

        let fc = ProductCommunicationManager.shared.fetchFlightController()

        if fc != nil {

            let fcMode = DJIFlightOrientationMode.aircraftHeading

            fc?.setFlightOrientationMode(fcMode, withCompletion: { (error: Error?) in

                if error != nil {

                    print("Error setting FlightController Orientation Mode");

                }

            })

            fc?.setMultipleFlightModeEnabled(true, withCompletion: { (error: Error?) in

                if error != nil {

                    print("Error setting multiple flight mode");

                }

            })

        }

    }

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