Пример #1
0
 /**
  * Set the QNH setting of the V7 vario
  */
 static inline bool
 SetQNH(Port &port, OperationEnvironment &env, const AtmosphericPressure &qnh)
 {
   char buffer[100];
   unsigned QNHinPascal = uround(qnh.GetPascal());
   sprintf(buffer, "PLXV0,QNH,W,%u", QNHinPascal); 
   return PortWriteNMEA(port, buffer, env);
 }
Пример #2
0
static bool
test_qnh_round2()
{
  AtmosphericPressure sp = AtmosphericPressure::Standard().QNHAltitudeToStaticPressure(fixed(100));
  AtmosphericPressure pres =
    AtmosphericPressure::FindQNHFromPressure(sp, fixed(120));
  fixed h0 = pres.StaticPressureToQNHAltitude(pres);
  if (verbose) {
    printf("%g %g\n", FIXED_DOUBLE(pres.GetPascal()), FIXED_DOUBLE(h0));
  }
  return fabs(h0)<fixed(1);
}