get-altitude-miles

wayland/gps/get-altitude-miles

Read altitude in miles.
get-altitude-miles
@/get-altitude-miles
Read altitude in miles.
GPS@/gps-device
A gps-device.
UPDpulse
Update.
get-altitude-miles
GPS
UPD
miles
Done
Donepulse
Pulse on successful read. Will only pulse if altitude valid.
milesnumber
Altitude in miles.
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_Alt>(ctx, gps->altitude.miles());
            emitValue<output_Done>(ctx, 1);
        }
    }
}