Geocalc
Calculate distance, bearing and more between Latitude/Longitude points.
Summary
Functions
Calculates bearing. Return radians
Converts degrees to radians. Return radians
Finds point from start point with given distance and bearing. Return array with latitude and longitude
Finds point between start and end points in direction to end point with given distance. Return array with latitude and longitude
Calculates distance between 2 points. Return distance in meters
Converts radians to degrees. Return degrees
Functions
Calculates bearing. Return radians.
Example
iex> berlin = [52.5075419, 13.4251364]
iex> paris = [48.8588589, 2.3475569]
iex> Geocalc.bearing(berlin, paris)
-1.9739245359361486
iex> Geocalc.bearing(paris, berlin)
1.0178267866082613Finds point from start point with given distance and bearing. Return array with latitude and longitude.
Example
iex> berlin = [52.5075419, 13.4251364]
iex> bearing = -1.9739245359361486
iex> distance = 100_000
iex> Geocalc.destination_point_given_distance_and_bearing_from_start_point(berlin, bearing, distance)
[52.147030316318904, 12.076990111001148]Finds point between start and end points in direction to end point with given distance. Return array with latitude and longitude.
Example
iex> berlin = [52.5075419, 13.4251364]
iex> paris = [48.8588589, 2.3475569]
iex> distance = 500_000
iex> Geocalc.destination_point_given_distance_from_start_and_end_point(berlin, paris, distance)
[50.5582900851695, 6.90714527103055]Calculates distance between 2 points. Return distance in meters.
Example
iex> berlin = [52.5075419, 13.4251364]
iex> paris = [48.8588589, 2.3475569]
iex> Geocalc.distance_between(berlin, paris)
878327.4291149472
iex> Geocalc.distance_between(paris, berlin)
878327.4291149472