geo_bearing

Crystal CI GitHub release License

Crystal implementation of calculating initial and final bearings between two points using great-circle distance formulas.

Installation

  1. Add the dependency to your shard.yml:

    dependencies:
  geo_bearing:
    github: geocrystal/geo_bearing

  2. Run shards install

Usage

require "geo_bearing"

lat1, lng1 = {48.8566, 2.3522}   # Paris
lat2, lng2 = {40.7128, -74.0060} # New York

Geo::Bearing.bearing(lat1, lng1, lat2, lng2)
# => 291.7938627483058

Geo::Bearing.bearing(lat1, lng1, lat2, lng2, true)
# => 233.70448129781204

convex hull

Contributing

  1. Fork it (https://github.com/geocrystal/geo_bearing/fork)
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Contributors