get-altitude-metres
wayland/gps/get-altitude-metres
Read altitude in metres.
get-altitude-metres
@/get-altitude-metres
Read altitude in metres.
GPS@/gps-device
A gps-device.
UPDpulse
Update.
Donepulse
Pulse on successful read. Will only pulse if altitude valid.
metresnumber
Altitude in metres.
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_metres>(ctx, gps->altitude.meters());
emitValue<output_Done>(ctx, 1);
}
}
}