slippy_tiles

Crystal implementation of the Slippy Map Tilenames

https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames

you can wrap this in a kemal project (or any other webservice / FaaS project) and use this for your tile based project 🔮 🚀

Installation

1. Add the dependency to your shard.yml:

   dependencies:
     slippy_tiles:
       github: simonneutert/slippy_tiles
   

2. Run shards install

Usage

require "slippy_tiles"

# latitude, longitude, zoom
tile = SlippyTiles.get_tile_number(50.0, 8.0, 14)
puts tile[:x] #=> 8556
puts tile[:y] #=> 5556

# tile_x, tile_y, zoom
geo = SlippyTiles.get_lat_lng_for_number(8556, 5556, 14) 
puts geo[:lat_deg].round #=> 50.0
puts geo[:lng_deg].round #=> 8.0

Contributing

1. Fork it (https://github.com/simonneutert/slippy_tiles/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

• Simon Neutert - creator and maintainer