Function adjust_latitude

3party/open-location-code/openlocationcode.cc:95–105

Adjusts 90 degree latitude to be lower so that a legal OLC code can be generated.

// Adjusts 90 degree latitude to be lower so that a legal OLC code can be
// generated.
double adjust_latitude(double latitude_degrees, size_t code_length) {
  latitude_degrees = std::min(90.0, std::max(-90.0, latitude_degrees));

  if (latitude_degrees < internal::kLatitudeMaxDegrees) {
    return latitude_degrees;
  }
  // Subtract half the code precision to get the latitude into the code
  // area.
  double precision = compute_precision_for_length(code_length);
  return latitude_degrees - precision / 2;
}

// Remove the separator and padding characters from the code.
std::string clean_code_chars(const std::string &code) {