get-altitude-feet

wayland/gps/get-altitude-feet

Read altitude in feet.
get-altitude-feet
@/get-altitude-feet
Read altitude in feet.
GPS@/gps-device
A gps-device.
UPDpulse
Update.
get-altitude-feet
GPS
UPD
feet
Done
Donepulse
Pulse on successful read. Will only pulse if altitude valid.
feetnumber
Altitude in feet.
To use the node in your project you should have the wayland/gps library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.

C++ implementation

#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD

node {

    void evaluate(Context ctx) {
        if (!isInputDirty<input_UPD>(ctx))
            return;

        auto gps = getValue<input_GPS>(ctx);

        if (gps->altitude.isValid()){
            emitValue<output_feet>(ctx, gps->altitude.feet());
            emitValue<output_Done>(ctx, 1);
        }
    }
}