export function metersToLongitudeDegrees()

in packages/geofire-common/src/index.ts [206:217]


export function metersToLongitudeDegrees(distance: number, latitude: number): number {
  const radians = degreesToRadians(latitude);
  const num = Math.cos(radians) * EARTH_EQ_RADIUS * Math.PI / 180;
  const denom = 1 / Math.sqrt(1 - E2 * Math.sin(radians) * Math.sin(radians));
  const deltaDeg = num * denom;
  if (deltaDeg < EPSILON) {
    return distance > 0 ? 360 : 0;
  }
  else {
    return Math.min(360, distance / deltaDeg);
  }
}