2 extend ActiveSupport::Concern
4 # Ensure that when coordinates are printed that they are always in decimal degrees,
6 # Unfortunately you can't extend Numeric classes directly (e.g. `Coord < Float`).
7 class Coord < DelegateClass(Float)
17 # This scaling factor is used to convert between the float lat/lon that is
18 # returned by the API, and the integer lat/lon equivalent that is stored in
23 scope :bbox, ->(bbox) { where(OSM.sql_for_area(bbox, "#{table_name}.")) }
24 before_save :update_tile
27 # Is this node within -90 >= latitude >= 90 and -180 >= longitude >= 180
28 # * returns true/false
30 return false if lat < -90 || lat > 90
31 return false if lon < -180 || lon > 180
37 self.tile = QuadTile.tile_for_point(lat, lon)
41 self.latitude = (l * SCALE).round
45 self.longitude = (l * SCALE).round
48 # Return WGS84 latitude
50 Coord.new(latitude.to_f / SCALE)
53 # Return WGS84 longitude
55 Coord.new(longitude.to_f / SCALE)