Function FormatLatLonAsDMSImpl

libs/platform/measurement_utils.cpp:98–139

}

std::string FormatLatLonAsDMSImpl(double value, char positive, char negative, int dac)
{
  using namespace base;

  std::ostringstream sstream;
  sstream << std::setfill('0');

  // Degrees
  double i;
  double d = std::modf(std::fabs(value), &i);
  sstream << std::setw(2) << i << "°";

  // Minutes
  d = std::modf(d * 60.0, &i);
  sstream << std::setw(2) << i << "′";

  // Seconds
  d = d * 60.0;
  if (dac == 0)
    d = std::round(d);

  d = std::modf(d, &i);
  sstream << std::setw(2) << i;

  if (dac > 0)
    sstream << strings::to_string_dac(d, dac).substr(1);

  sstream << "″";

  // This condition is too heavy for production purposes (but more correct).
  // if (std::round(value * 3600.0 * pow(10, dac)) != 0)
  if (!AlmostEqualULPs(value, 0.0))
  {
    char postfix = positive;
    if (value < 0.0)
      postfix = negative;

    sstream << postfix;
  }

  return sstream.str();
}

std::string FormatLatLonAsDMS(double lat, double lon, bool withComma, int dac)
{