Class: S2Cells::S2LatLon

Inherits:
Object
  • Object
show all
Defined in:
lib/s2_cells/s2_lat_lon.rb

Instance Method Summary collapse

Constructor Details

#initialize(lat_degrees, lon_degrees) ⇒ S2LatLon

Returns a new instance of S2LatLon.



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# File 'lib/s2_cells/s2_lat_lon.rb', line 5

def initialize(lat_degrees, lon_degrees)
  @lat = lat_degrees * Math::PI / 180
  @lon = lon_degrees * Math::PI / 180
end

Instance Method Details

#to_point ⇒ Object 



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# File 'lib/s2_cells/s2_lat_lon.rb', line 10

def to_point
  phi    = @lat
  theta  = @lon
  cosphi = Math.cos(phi)
  S2Point.new(Math.cos(theta) * cosphi, Math.sin(theta) * cosphi, Math.sin(phi))
end

#to_s2_id(level) ⇒ Object 



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# File 'lib/s2_cells/s2_lat_lon.rb', line 17

def to_s2_id(level)
  S2CellId.from_point(to_point)
          .parent(level)
          .signed_id
end