C++ (Cpp) AtmosphericPressure::get_QNH示例

示例#1

文件： Airspaces.cpp 项目： galippi/xcsoar

void 
Airspaces::set_flight_levels(const AtmosphericPressure &press)
{
  if (press.get_QNH() != m_QNH) {
    m_QNH = press.get_QNH();

    for (AirspaceTree::iterator v = airspace_tree.begin();
         v != airspace_tree.end(); ++v) {
      v->set_flight_level(press);
    }
  }
}

示例#2

文件： test_pressure.cpp 项目： hnpilot/XCSoar

static bool
test_find_qnh2()
{
  AtmosphericPressure pres;
  pres.FindQNH(fixed(100), fixed(120));
  if (verbose) {
    printf("%g\n",FIXED_DOUBLE(pres.get_QNH()));
  }
  return fabs(pres.get_QNH()-fixed(1015.6))<fixed(0.1);
  // example, QNH=1014, ps=100203
  // alt= 100
  // alt_known = 120
  // qnh= 1016
}

示例#3

文件： test_pressure.cpp 项目： hnpilot/XCSoar

static bool
test_find_qnh()
{
  AtmosphericPressure pres;
  pres.FindQNH(fixed(100), fixed(100));
  return fabs(pres.get_QNH()-fixed(1013.25))<fixed(0.01);
}

示例#4

文件： test_pressure.cpp 项目： hnpilot/XCSoar

static bool
test_qnh_round2()
{
  AtmosphericPressure pres;
  pres.FindQNH(fixed(100), fixed(120));
  fixed p0 = pres.get_QNH()*100;
  fixed h0 = pres.StaticPressureToQNHAltitude(p0);
  if (verbose) {
    printf("%g %g\n",FIXED_DOUBLE(p0),FIXED_DOUBLE(h0));
  }
  return fabs(h0)<fixed(1);
}