Contents

require 'mongoid_spacial/spacial/core_ext'
require 'mongoid_spacial/spacial/formulas'
require 'mongoid_spacial/spacial/document'
require 'mongoid_spacial/spacial/geo_near_results'
module Mongoid
  module Spacial

    EARTH_RADIUS_KM = 6371 # taken directly from mongodb

    EARTH_RADIUS = {
      :km => EARTH_RADIUS_KM,
      :m  => EARTH_RADIUS_KM*1000,
      :mi => EARTH_RADIUS_KM*0.621371192, # taken directly from mongodb
      :ft => EARTH_RADIUS_KM*5280*0.621371192,
    }

    RAD_PER_DEG = Math::PI/180

    LNG_SYMBOLS = [:x, :lon, :long, :lng, :longitude]
    LAT_SYMBOLS = [:y, :lat, :latitude]

    def self.distance(p1,p2,opts = {})
      opts[:formula] ||= (opts[:spherical]) ? @@spherical_distance_formula : :pythagorean_theorem
      p1 = p1.to_lng_lat if p1.respond_to?(:to_lng_lat)
      p2 = p2.to_lng_lat if p2.respond_to?(:to_lng_lat)

      rads = Formulas.send(opts[:formula], p1, p2)

      if unit = earth_radius[opts[:unit]]
        opts[:unit] = (rads.instance_variable_get("@radian")) ? unit : unit * RAD_PER_DEG
      end

      rads *= opts[:unit].to_f if opts[:unit]
      rads
    end

    mattr_accessor :lng_symbols
    @@lng_symbols = LNG_SYMBOLS.dup

    mattr_accessor :lat_symbols
    @@lat_symbols = LAT_SYMBOLS.dup

    mattr_accessor :earth_radius
    @@earth_radius = EARTH_RADIUS.dup

    mattr_accessor :paginator
    @@paginator = :array

    mattr_accessor :default_per_page
    @@default_per_page = 25

    mattr_accessor :spherical_distance_formula
    @@spherical_distance_formula = :n_vector

  end
end

Version data entries

11 entries across 11 versions & 3 rubygems

Version	Path
mongoid_spacial-0.2.17	lib/mongoid_spacial/spacial.rb
sig_mongoid_spacial-0.2.17	lib/mongoid_spacial/spacial.rb
cb_mongoid_spacial-0.2.16	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.16	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.13	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.12	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.11	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.10	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.8	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.7	lib/mongoid_spacial/spacial.rb
mongoid_spacial-0.2.6	lib/mongoid_spacial/spacial.rb